Updated on 2024/10/24

Information

 

写真a

 
ICHIKAWA YUICHI
 
Organization
Faculty of Science Department of Physics Associate Professor
Center for Accelerator and Beam Applied Science (Concurrent)
Faculty of Science Superheavy element research center(Concurrent)
School of Sciences Department of Physics(Concurrent)
Graduate School of Sciences Department of Physics(Concurrent)
Title
Associate Professor
Contact information
メールアドレス
Tel
0928024218
Profile
原子核のスピンをある方向に揃え、それを人工的に操作する技術を駆使して、宇宙における物質創生の謎に迫る研究をしています。例えば、超新星爆発や中性子合体などの特異な天体現象の際に一瞬存在していたと考えられるエキゾチック核の構造を、オリジナルのスピン操作RIビームを使って調べることで、身の回りの元素がどのようにしてできたかを探求します。また、原子核自身を「実験室」として用いて、その核スピンの操作・精密測定をすることで、原子核内に残る宇宙初期CP非保存の痕跡、すなわち物質そのものの起源に迫る研究も行っています。

Degree

  • Ph.D.

Research History

  • 2008/04-2009/03 理化学研究所(リサーチアソシエイト) 2009/04-2011/12 理化学研究所(基礎科学特別研究員) 2013/10-2017/03 理化学研究所(研究員) 2017/04-2020/03 理化学研究所(専任研究員)

    2008/04-2009/03 理化学研究所(リサーチアソシエイト) 2009/04-2011/12 理化学研究所(基礎科学特別研究員) 2013/10-2017/03 理化学研究所(研究員) 2017/04-2020/03 理化学研究所(専任研究員)

  • 2012/01-2013/09 東京工業大学(特任助教)

Research Interests・Research Keywords

  • Research theme:Study of exotic nuclear properties using nuclear-spin-oriented RI beams

    Keyword:Spin, RI beam

    Research period: 2020.4

  • Research theme:Study of fundamental symmetries using nuclear-spin manipulation

    Keyword:Spin, Symmetry

    Research period: 2020.4

Awards

  • 第5回理研研究奨励賞

    2014.3   理化学研究所   スピン操作したRIビームの生成法開発

  • 第8回日本物理学会若手奨励賞

    2014.3   日本物理学会   スピン操作したRIビームの生成

  • 第16回原子核談話会新人賞

    2010.9   原子核談話会   陽子過剰核24Siのベータ崩壊とその鏡映対称性

Papers

  • Demonstration of nuclear gamma-ray polarimetry based on a multi-layer CdTe Compton camera Reviewed International journal

    S. Go, Y. Tsuzuki, H. Yoneda, Y. Ichikawa, T. Ikeda, N. Imai, K. Imamura, M. Niikura, D. Nishimura, R. Mizuno, S. Takeda, H. Ueno, S. Watanabe, T. Y. Saito, S. Shimoura, S. Sugawara, A. Takamine, T. Takahashi

    Scientific Reports   14 ( 1 )   2573   2024.2   ISSN:2045-2322

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    宇宙観測技術をベースとした多層半導体コンプトンカメラを用い、原子核から放出されるガンマ線の偏光を検出し、原子核の内部構造を明らかにできることを示した。多層半導体コンプトンカメラの光に対する高い位置決定精度と検出効率に着目し、この装置を用いて56Fe 原子核の励起状態から放出されるガンマ線の偏光測定を行った。その結果、偏光の測定を実証したばかりでなく、その測定の感度は非常に高く、高い検出効率を兼ね備えた革新的な手法であることが判明した。この成果は、希少な不安定核おける原子核の魔法数消失過程など、宇宙の成立や物質の性質の理解の基礎的知見を深めることに寄与すると期待される。

    DOI: 10.1038/s41598-024-52692-2

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  • Demonstration of nuclear gamma-ray polarimetry based on a multi-layer CdTe Compton camera Reviewed International journal

    @S. Go, @Y. Tsuzuki, @H. Yoneda, Y. Ichikawa, @T. Ikeda, @N. Imai, @K. Imamura, @M. Niikura, @D. Nishimura, @R. Mizuno, @S. Takeda, @H. Ueno, @S. Watanabe, @T. Y. Saito, @S. Shimoura, @S. Sugawara, @A. Takamine, @T. Takahashi

    Scientific Reports   14   2573   2024.2

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: https://doi.org/10.1038/s41598-024-52692-2

  • g-Factor of the 99Zr (7/2+) Isomer: Monopole Evolution in Shape-Coexisting Region Reviewed International journal

    F. Boulay, G. S. Simpson, Y. Ichikawa, S. Kisyov, D. Bucurescu, A. Takamine, D. S. Ahn, K. Asahi, H. Baba, D. L. Balabanski, T. Egami, T. Fujita, N. Fukuda, C. Funayama, T. Furukawa, G. Georgiev, A. Gladkov, M. Hass, K. Imamura, N. Inabe, Y. Ishibashi, T. Kawaguchi, T. Kawamura, W. Kim, Y. Kobayashi, S. Kojima, A. Kusoglu, R. Lozeva, S. Momiyama, I. Mukul, M. Niikura, H. Nishibata, T. Nishizaka, A. Odahara, Y. Ohtomo, D. Ralet, T. Sato, Y. Shimizu, T. Sumikama, H. Suzuki, H. Takeda, L. C. Tao, Y. Togano, D. Tominaga, H. Ueno, H. Yamazaki, X. F. Yang, and J. M. Daugas

    Physical Review Letters   124   112501   2020.3

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    Language:Japanese  

    DOI: 10.1103/PhysRevLett.124.112501

  • Interplay between nuclear shell evolution and shape deformation revealed by the magnetic moment of 75Cu Reviewed

    Y. Ichikawa, H. Nishibata, Y. Tsunoda, A. Takamine, K. Imamura, T. Fujita, T. Sato, S. Momiyama, Y. Shimizu, D. S. Ahn, K. Asahi, H. Baba, D. L. Balabanski, F. Boulay, J. M. Daugas, T. Egami, N. Fukuda, C. Funayama, T. Furukawa, G. Georgiev, A. Gladkov, N. Inabe, Y. Ishibashi, T. Kawaguchi, T. Kawamura, Y. Kobayashi, S. Kojima, A. Kusoglu, I. Mukul, M. Niikura, T. Nishizaka, A. Odahara, Y. Ohtomo, T. Otsuka, D. Ralet, G. S. Simpson, T. Sumikama, H. Suzuki, H. Takeda, L. C. Tao, Y. Togano, D. Tominaga, H. Ueno, H. Yamazaki, X. F. Yang

    Nature Physics   15 ( 4 )   321 - 325   2019.4

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    DOI: 10.1038/s41567-018-0410-7

  • Development of co-located 129Xe and 131Xe nuclear spin masers with external feedback scheme Reviewed

    T. Sato, Y. Ichikawa, S. Kojima, C. Funayama, S. Tanaka, T. Inoue, A. Uchiyama, A. Gladkov, A. Takamine, Y. Sakamoto, Y. Ohtomo, C. Hirao, M. Chikamori, E. Hikota, T. Suzuki, M. Tsuchiya, T. Furukawa, A. Yoshimi, C. P. Bidinosti, T. Ino, H. Ueno, Y. Matsuo, T. Fukuyama, N. Yoshinaga, Y. Sakemi, K. Asahi

    Physics Letters, Section A: General, Atomic and Solid State Physics   382 ( 8 )   588 - 594   2018.2

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    DOI: 10.1016/j.physleta.2017.12.003

  • Search for electric dipole moment in 129Xe atom using a nuclear spin oscillator Reviewed

    K. Asahi, Y. Ichikawa, M. Chikamori, Y. Ohtomo, E. Hikota, T. Suzuki, T. Inoue, T. Furukawa, A. Yoshimi, K. Suzuki, T. Nanao, H. Miyatake, M. Tsuchiya, N. Yoshida, H. Shirai, T. Ino, H. Ueno, Y. Matsuo, T. Fukuyama

    Physics of Particles and Nuclei   45 ( 1 )   199 - 201   2014.1

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    DOI: 10.1134/S1063779614010080

  • Production of spin-controlled rare isotope beams Reviewed

    Nature Physics   8 ( 12 )   918 - 922   2012.12

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    DOI: 10.1038/nphys2457

  • Is the 7/2^<->_<1> isomer state of ^<43>S spherical? Reviewed

    Balabanski D.L., Ishii Y., Ishihara M., Inoue T., Inabe N., Iijima H., Hayashi H., Georgiev G., Furukawa T., Fukuda N., Asahi K., Aoi N., Cottenier S., Haas H., Hass M., Ueno H., Ichikawa Y., Gaudefroy L., Daugas J.M., Chevrier R., Yoshimi A., Watanabe H., Vermeulen N., Tsuchiya M., Takeda H., Suzuki K., Rajabali M.M., Ohnishi T., Neyens G., Nanao T., Kubo T., Kameda D.

    Physical Review Letters   108 ( 16 )   162501 - 162501   2012.4

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    Is the 7/21-isomer state of 43S spherical?
    We report on the spectroscopic quadrupole moment measurement of the 7/21- isomeric state in 43S, using the time dependent perturbed angular distribution technique at the RIKEN RIBF facility. Our value, Qs=23(3)efm2, is larger than that expected for a single-particle state. Shell model calculations using the modern SDPF-U interaction for this mass region reproduce remarkably well the measured Qs, and show that non-negligible correlations drive the isomeric state away from a purely spherical shape.

    DOI: 10.1103/PhysRevLett.108.162501

  • β Decay of the proton-rich nucleus 24Si and its mirror asymmetry Reviewed

    80 ( 4 )   2009.10

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    β-decay spectroscopy of the proton-rich nucleus 24Si was performed. The decay scheme was reconstructed from results of delayed γ-ray and proton measurements. We observed two β branches to bound states in 24Al for the first time. The branching ratios were determined to be 31(4)&#37; and 23.9(15)&#37; for the 11+ state at 0.426 MeV and the state at 1.090 MeV, respectively. The observation of an allowed transition to the 1.090-MeV state enabled us to firmly determine its spin-parity as 1+. In the proton measurements performed with the ΔE-E method, we observed a new unbound level at 6.735 MeV. The branching ratios to three unbound states, including the new level, were also determined for the first time. Based on the decay scheme, the B(GT) values of 24Si were deduced. The B(GT) values were smaller than those of the mirror nucleus 24Ne by 22&#37; and 10&#37; for the 11+ and 12+ states, respectively. The mirror asymmetries of B(GT), observed in both the 11+ and the 12+ states, indicate changes in configuration in the wave function associated with the Thomas-Ehrman shift. To clarify the mechanism of this asymmetry, a comparison with shell-model calculations is also discussed. The calculations attribute the changes in configuration to the lowering of the 1s1/2 orbital.

    DOI: 10.1103/PhysRevC.80.044302

  • Injection of high energetic ion beams to superfluid helium as a host matrix of laser spectroscopic study of radioisotope atoms

    Imamura K., Takamine A., Kikuchi K., Mitsuyasu R., Akimoto S., Ito M., Tsubura K., Gladkov A., Tajima M., Go S., Mukai M., Doi M., Nishimura M., Yamamoto T., Endo H., Fukuzawa Y., Sasamori S., Takahashi S., Hase M., Kawata K., Nishibata H., Ichikawa Y., Kitagawa A., Wakui T., Ueno H., Matsuo Y.

    Interactions   245 ( 1 )   2024.12

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    We are developing a laser spectroscopic method to study the nuclear structure of radioactive isotopes utilizing superfluid helium (He II) as an efficient stopper for highly energetic ion beams and as an in-situ laser spectroscopic environment. Recently, we conducted an ion stopping experiment for the 84Rb37+ beams with the energy of approximately 350 A MeV at QST-HIMAC with a cryostat system used for 66 A MeV at RIKEN-RIPS experiment (Appl. Phys. Express 12, 016502 (2019)). The radioactive 84Rb ions were produced via a projectile fragmentation reaction using accelerated 84Kr36+ beams and a 12-mm thick Be target. As a first step, we measured the stopping range distribution of the injected ion beams in liquid N2 to estimate the stopping range distribution in He II and the spot size of the injected ion beams using a plastic scintillator. Then, a laser-induced fluorescence (LIF) detection experiment was performed using He II. We successfully observed the LIF from 84Rb atoms. We estimated the longitudinal range straggling of 84Rb ions in superfluid helium from the obtained results. The details of experiment at QST-HIMAC and results are given in this report.

    DOI: 10.1007/s10751-024-01889-y

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  • Injection of High Energetic Ion Beams to Superfluid Helium as a Host Matrix of Laser Spectroscopic Study of Radioisotope Atoms Reviewed International journal

    @K. Imamura, @A. Takamine, @K. Kikuchi, @R. Mitsuyasu, @S. Akimoto, @M. Ito, @K. Tsubura, @A. Gladkov, @M. Tajima, @S. Go, @M. Mukai, @M. Doi, @M. Nishimura, @T. Yamamoto, @H. Endo, @Y. Fukuzawa, @S. Sasamori, @S. Takahashi, @M. Hase, @K. Kawata, H. Nishibata, Y. Ichikawa, @A. Kitagawa, @T. Wakui, @H. Ueno, @Y. Matsuo

    Interactions   245   69   2024.4

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    DOI: https://doi.org/10.1007/s10751-024-01869-2

  • Production of new neutron-rich isotopes near the N=60 isotones Ge 92 and As 93 by in-flight fission of a 345 MeV/nucleon U 238 beam

    Shimizu Y., Kubo T., Sumikama T., Fukuda N., Takeda H., Suzuki H., Ahn D.S., Inabe N., Kusaka K., Ohtake M., Yanagisawa Y., Yoshida K., Ichikawa Y., Isobe T., Otsu H., Sato H., Sonoda T., Murai D., Iwasa N., Imai N., Hirayama Y., Jeong S.C., Kimura S., Miyatake H., Mukai M., Kim D.G., Kim E., Yagi A.

    Physical Review C   109 ( 4 )   2024.4   ISSN:24699985

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    Publisher:Physical Review C  

    A search for new neutron-rich isotopes near the N=60 isotones Ge92 and As93 has been performed using a 345 MeV/nucleon U238 beam at the RIKEN Nishina Center RI Beam Factory. Fission fragments produced were analyzed and identified in flight using the large-acceptance two-stage separator BigRIPS. We have observed a total of 15 new neutron-rich isotopes: Cu84, Zn86,87, Ga88,89, Ge91,92, As93,94,95, Se96,97, Br99,100, and Kr103.

    DOI: 10.1103/PhysRevC.109.044313

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  • Injection of High Energetic Ion Beams to Superfluid Helium as a Host Matrix of Laser Spectroscopic Study of Radioisotope Atoms Reviewed International journal

    K. Imamura, A. Takamine, K. Kikuchi, R. Mitsuyasu, S. Akimoto, M. Ito, K. Tsubura, A. Gladkov, M. Tajima, S. Go, M. Mukai, M. Doi, M. Nishimura, T. Yamamoto, H. Endo, Y. Fukuzawa, S. Sasamori, S. Takahashi, M. Hase, K. Kawata, H. Nishibata, Y. Ichikawa, A. Kitagawa, T. Wakui, H. Ueno, Y. Matsuo

    Interactions   245   69   2024.4

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    DOI: 10.1007/s10751-024-01869-2

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  • Nuclear-moment measurement using highly spin-aligned RI beams: Recent activities at RIBF Reviewed International journal

    Y. Ichikawa, #Y. Shinohara, @S. Go, H. Nishibata, #S. Ando, @K. Asahi, @H. Baba, @N. Fukuda, @G. Georgiev, @A. Gladkov, @K. Imamura, #K. Kishimoto, @R. Lozeva, @M. Mukai, @M. Niikura, @Nurhafiza M. Nor, @A. Odahara, @Y. Shimizu, @M. Si, @K. Stoychev, @H. Suzuki, @M. Tajima, @A. Takamine, @H. Takeda, @S. Takeshige, @M. Tanaka, @Y. Togano, @H. Ueno, T. Wakasa, #W. Yamashita, @H. Yamazaki, @M. Yoshimoto, @J. M. Daugas

    Interactions   245   26   2024.2

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    DOI: https://doi.org/10.1007/s10751-024-01869-2

  • Nuclear-moment measurement using highly spin-aligned RI beams: Recent activities at RIBF Reviewed International journal

    Y. Ichikawa, Y. Shinohara, S. Go, H. Nishibata, S. Ando, K. Asahi, H. Baba, N. Fukuda, G. Georgiev, A. Gladkov, K. Imamura, K. Kishimoto, R. Lozeva, M. Mukai, M. Niikura, Nurhafiza M. Nor, A. Odahara, Y. Shimizu, M. Si, K. Stoychev, H. Suzuki, M. Tajima, A. Takamine, H. Takeda, S. Takeshige, M. Tanaka, Y. Togano, H. Ueno, T. Wakasa, W. Yamashita, H. Yamazaki, M. Yoshimoto, J. M. Daugas

    Interactions   245   26   2024.2

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    DOI: 10.1007/s10751-024-01869-2

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  • Nuclear magnetic moment of the neutron-rich nucleus 21O Reviewed International journal

    Y. Ishibashi, A. Gladkov, Y. Ichikawa, A. Takamine, H. Nishibata, T. Sato, H. Yamazaki, T. Abe, J. M. Daugas, T. Egami, T. Fujita, G. Georgiev, K. Imamura, T. Kawaguchi, W. Kobayashi, Y. Nakamura, A. Ozawa, M. Sanjo, N. Shimizu, D. Tominaga, L. C. Tao, K. Asahi, and H. Ueno

    Physical Review C   107 ( 2 )   2023.2   ISSN:2469-9985 eISSN:2469-9993

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    DOI: 10.1103/PhysRevC.107.024306

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  • デジタル顕微鏡を用いた3Dモニター顕微手術における学習曲線とエルゴノミクス(Learning Curve and Ergonomics Associated with the 3D-monitor-assisted Microsurgery Using a Digital Microscope)

    Ichikawa Yuichi, Tobita Miho, Takahashi Rina, Ito Tomoyuki, Senda Daiki, Tanaka Rica, Mizuno Hiroshi, Sano Kazufumi

    Journal of Plastic and Reconstructive Surgery   2 ( 1 )   1 - 8   2023.1

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    デジタル顕微鏡を用いた3Dモニター顕微手術における学習曲線とエルゴノミクスの利点を検討した。頭頸部再建手術を受けた34例をデジタル顕微鏡使用群(3DMAM群)17例(男性9例、女性8例、平均66.0±8.4歳)と従来の光学顕微鏡使用群(OM群)17例(男性13例、女性4例、平均63.5±12.2歳)に分類し、血管吻合に要した時間、微小血管合併症、手術エルゴノミクスなどを比較した。学習曲線の評価には血管吻合中の移行時間を用い、エルゴノミクスの客観的評価として筋電図による筋疲労度を測定した。皮弁の使用、レシピエント血管に関して3DMAM群とOM群との間に有意差はみられなかったが、動脈吻合に要する時間は3DMAM群が24.9±6.5分、OM群が18.1±5.2分とOM群の方が有意に短く、静脈吻合に要する時間に有意な群間差はなかった。学習曲線について、吻合に要する時間は3DMAM群では線形に漸減傾向を示し、OM群では大きな変動はみられなかった。このほか、エルゴノミクスの評価では左僧帽筋下部の筋疲労度のみ3DMAM群の方が有意に低値を示していた。デジタル顕微鏡を用いた3Dモニター顕微手術によるエルゴノミクスの利点は中等度に留まり、学習曲線の取得にも一定の期間を要することが示された。

  • ELEANORノンコーディングRNAの発現は癌休止状態に寄与し、エストロゲン受容体陽性乳癌の遅発性再発を予測する(The ELEANOR noncoding RNA expression contributes to cancer dormancy and predicts late recurrence of estrogen receptor-positive breast cancer)

    Fukuoka Megumi, Ichikawa Yuichi, Osako Tomo, Fujita Tomoko, Baba Satoko, Takeuchi Kengo, Tsunoda Nobuyuki, Ebata Tomoki, Ueno Takayuki, Ohno Shinji, Saitoh Noriko

    Cancer Science   113 ( 7 )   2336 - 2351   2022.7   ISSN:1347-9032

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    広範な乳癌検体において、核内ノンコーディングRNAのクラスターであるESR1 Locus Enhancing and Activating Noncoding RNAs(ELEANORS)の臨床病理学的特徴を検討した。ELEANORSの発現はエストロゲン受容体(ER)陽性例に限られ、特に転移部位ではERおよびプロゲステロン受容体の発現量とよく相関していた。ELEANORSは原発巣と転移巣の両方で検出され(それぞれ32%と29%)、閉経後の症例に多く認められた。ELEANOR陽性の原発腫瘍を有する患者は、手術5年後に再発率が上昇した。多変量解析により、ELEANORSは独立した再発の危険因子であった。細胞株、マウス異種移植片、患者組織を用いた解析から、ELEANORSは乳癌幹細胞遺伝子であるCD44の発現を亢進させ、癌幹細胞集団を維持することにより、癌休止状態を促進する可能性が示された。

  • 核スピンから探る原子核・素粒子・宇宙

    市川 雄一

    原子核研究「2021」夏の学校特集号   66   13 - 22   2022

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  • Production of the most neutron-deficient Zn isotopes by projectile fragmentation of 78Kr Reviewed International journal

    A. Kubiela, H. Suzuki, O. B. Tarasov, M. Pfutzner, D. -S. Ahn, H. Baba, A. Bezbakh, A. A. Ciemny, W. Dominik, N. Fukuda, A. Giska, R. Grzywacz, Y. Ichikawa, Z. Janas, L. Janiak, G. Kaminski, K. Kawata, T. Kubo, M. Madurga, C. Mazzocchi, H. Nishibata, M. Pomorski, Y. Shimizu, N. Sokolowska, D. Suzuki, P. Szymkiewicz, A. Swiercz, M. Tajima, A. Takamine, H. Takeda, Y. Takeuchi, C. R. Thornsberry, H. Ueno, H. Yamazaki, R. Yokoyama, K. Yoshida

    Physical Review C   104 ( 6 )   064610   2021.12

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    DOI: 10.1103/PhysRevC.104.064610

  • Quantum sensing of the electron electric dipole moment using ultracold entangled Fr atoms Reviewed International journal

    T. Aoki, R. Sreekantham, B. K. Sahoo, Bindiya Arora, A. Kastberg, T. Sato, H. Ikeda, N. Okamoto, Y. Torii, T. Hayamizu, K. Nakamura, S. Nagase, M. Ohtsuka, H. Nagahama, N. Ozawa, M. Sato, T. Nakashita, K. Yamane, K. S. Tanaka, K. Harada, H. Kawamura, T. Inoue, A. Uchiyama, A. Hatakeyama, A. Takamine, H. Ueno, Y. Ichikawa, Y. Matsuda, H. Haba and Y. Sakemi

    Quantum Science and Technology   2021.8

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    DOI: 10.1088/2058-9565/ac1b6a

  • Three-body breakup of 6He and its halo structure Reviewed International journal

    Y. L. Sun, T. Nakamura, Y. Kondo, Y. Satou, J. Lee, T. Matsumoto, K. Ogata, Y. Kikuchi, N. Aoi, Y. Ichikawa, K. Ieki, M. Ishihara, T. Kobayshi, T. Motobayashi, H. Otsu, H. Sakurai, T. Shimamura, S. Shimoura, T. Shinohara, T. Sugimoto, S. Takeuchi, Y. Togano, K. Yoneda

    Physics Letters B   814   146072   2021.3

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    DOI: 10.1016/j.physletb.2021.136072

  • Nuclear-moment Measurement of Exotic Nuclei Using Spin-oriented Beams at RIBF Invited Reviewed International journal

    Y. Ichikawa

    AIP Conference Proceedings   2319   080021   2021.2

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    DOI: 10.1063/5.0039413

  • Magnetic moment of the isomeric state of 75Cu measured with a highly spin-aligned beam Reviewed International journal

    Y. Ichikawa, H. Nishibata, Y. Tsunoda, A. Takamine, K. Imamura, T. Fujita, T. Sato, S. Momiyama, Y. Shimizu, D. S. Ahn, K. Asahi, H. Baba, D. L. Balabanski, F. Boulay, J. M. Daugas, T. Egami, N. Fukuda, C. Funayama, T. Furukawa, G. Georgiev, A. Gladkov, N. Inabe, Y. Ishibashi, T. Kawaguchi, T. Kawamura, Y. Kobayashi, S. Kojima, A. Kusoglu, I. Mukul, M. Niikura, T. Nishizaka, A. Odahara, Y. Ohtomo, T. Otsuka, D. Ralet, G. S. Simpson, T. Sumikama, H. Suzuki, H. Takeda, L. C. Tao, Y. Togano, D. Tominaga, H. Ueno, H. Yamazaki, X. F. Yang

    JPS Conference Proceedings   32   010047   2020.7

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    DOI: 10.7566/JPSCP.32.010047

  • Absolute optical absorption cross-section measurement of Rb atoms injected into superfluid helium using energetic ion beams Reviewed

    Kei Imamura, Yukari Matsuo, Wataru Kobayashi, Tsuyoshi Egami, Makoto Sanjo, Aiko Takamine, Tomomi Fujita, Daiki Tominaga, Yutaro Nakamura, Takeshi Furukawa, Takashi Wakui, Yuichi Ichikawa, Hiroki Nishibata, Tomoya Sato, Aleksey Gladkov, Long Chun Tao, Takafumi Kawaguchi, Yosuke Baba, Mari Iijima, Haruka Gonda, Yasuharu Takeuchi, Rio Nakazato, Hitoshi Odashima, Hideki Ueno

    Applied Physics Express   12 ( 1 )   016502 - 016502   2019.1

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    DOI: 10.7567/1882-0786/aaf0a9

  • Negative Parity States in 39Cl Configured by Crossing Major Shell Orbits Reviewed

    Long Chun Tao, Y. Ichikawa, Cen Xi Yuan, Y. Ishibashi, A. Takamine, A. Gladkov, T. Fujita, K. Asahi, T. Egami, C. Funayama, K. Imamura, Jian Ling Lou, T. Kawaguchi, T. Nishizaka, T. Sato, D. Tominaga, Xiao Fei Yang, H. Yamazaki, Yan Lin Ye, H. Ueno

    Chinese Physics Letters   36 ( 6 )   2019.1

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    DOI: 10.1088/0256-307X/36/6/062101

  • Charge identification of low-energy particles for double-strangeness nuclei in nuclear emulsion Reviewed

    Shinji Kinbara, Hiroyuki Ekawa, Tomomi Fujita, Shuhei Hayakawa, Sanghoon Hwang, Yuichi Ichikawa, Kei Imamura, Rina Murai, Myint Kyaw Soe, May Sweet, Aiko Takamine, Aye Moh Moh Theint, Hideki Ueno, Junya Yoshida, Masahiro Yoshimoto, Kazuma Nakazawa

    Progress of Theoretical and Experimental Physics   2019 ( 1 )   2019.1

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    DOI: 10.1093/ptep/pty137

  • High-precision quadrupole moment reveals significant intruder component in Al20 1333 ground state Reviewed

    Physical Review C   94 ( 3 )   2016.9

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    DOI: 10.1103/PhysRevC.94.034312

  • Towards high precision measurements of nuclear g-factors for the Be isotopes Reviewed

    A. Takamine, M. Wada, K. Okada, Y. Ito, P. Schury, F. Arai, I. Katayama, K. Imamura, Y. Ichikawa, H. Ueno, H. Wollnik, H. A. Schuessler

    Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms   376   307 - 310   2016.6

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    DOI: 10.1016/j.nimb.2015.12.027

  • Frequency characteristics of nuclear spin oscillator with an artificial feedback toward search for 129Xe atomic electric dipole moment Reviewed

    Takeshi Inoue, Takeshi Furukawa, Akihiro Yoshimi, Tsubasa Nanao, Masatoshi Chikamori, Kunifumi Suzuki, Hironori Hayashi, Hirokazu Miyatake, Yuichi Ichikawa, Masato Tsuchiya, Naoto Hatakeyama, Sota Kagami, Makoto Uchida, Hideki Ueno, Yukari Matsuo, Takeshi Fukuyama, Koichiro Asahi

    European Physical Journal D   70 ( 6 )   2016.6

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    DOI: 10.1140/epjd/e2016-70034-8

  • Magnetic moment of the 13/2+ isomeric state in Cu69: Spin alignment in the one-nucleon removal reaction Reviewed

    Kusoglu A., Georgiev G., Sotty C., Balabanski D. L., Goasduff A., Ishii Y., Abe Y., Asahi K., Bostan M., Chevrier R., Chikamori M., Daugas J. M., Furukawa T., Nishibata H., Ichikawa Y., Ishibashi Y., Lozeva R., Miyatake H., Nagae D., Nanao T., Niikura M., Niwa T., Okada S., Ozawa A., Saito Y., Shirai H., Ueno H., Yordanov D. T., Yoshida N.

    Physical review C   93 ( 5 )   54313 - 54313   2016.5

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    Magnetic moment of the 13/2+ isomeric state in Cu 69 Spin alignment in the one-nucleon removal reaction
    We report on a new measurement of the g factor of the (13/2+) isomeric state in the neutron-rich nucleus Cu69. This study demonstrates the possibility of obtaining considerable nuclear spin alignment for multi-quasiparticle states in single-nucleon removal reactions. The time-dependent perturbed angular distribution (TDPAD) method was used to extract the gyromagnetic factor of the (13/2+) [T1/2=351(14) ns] isomeric state of Cu69. Its g factor was obtained as g(13/2+)=0.248(9). The experimentally observed spin alignment for the state of interest was deduced as A=-3.3(9)&#37;.

    DOI: 10.1103/PhysRevC.93.054313

  • Development Of 131Xe Co-magnetometry For Xe Atomic EDM Search Reviewed

    Tomoya Sato, Yuichi Ichikawa, Koichiro Asahi, Shuichiro Kojima, Chikako Funayama, Shunya Tanaka, Yu Sakamoto, Yuichi Ohtomo, Chika Hirao, Masatoshi Chikamori, Eri Hikota, Takeshi Furukawa, Akihiro Yoshimi, Christopher P. Bidinosti, Takashi Ino, Hideki Ueno, Yukari Matsuo, Takeshi Fukuyama

    26th International Nuclear Physics Conference, INPC 2016 Proceedings of Science   2016-September   2016.1

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  • Performance assessment of a new laser system for efficient spin exchange optical pumping in a spin maser measurement of 129Xe EDM Reviewed

    C. Funayama, T. Furukawa, T. Sato, Y. Ichikawa, Y. Ohtomo, Y. Sakamoto, S. Kojima, T. Suzuki, C. Hirao, M. Chikamori, E. Hikota, M. Tsuchiya, A. Yoshimi, C. P. Bidinosti, T. Ino, H. Ueno, Y. Matsuo, T. Fukuyama, K. Asahi

    Hyperfine Interactions   236 ( 1-3 )   59 - 64   2015.11

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    DOI: 10.1007/s10751-015-1203-3

  • Development of high-homogeneity magnetic field coil for 129Xe EDM experiment Reviewed

    Y. Sakamoto, C. P. Bidinosti, Y. Ichikawa, T. Sato, Y. Ohtomo, S. Kojima, C. Funayama, T. Suzuki, M. Tsuchiya, T. Furukawa, A. Yoshimi, T. Ino, H. Ueno, Y. Matsuo, T. Fukuyama, K. Asahi

    Hyperfine Interactions   230 ( 1-3 )   141 - 146   2015.4

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    DOI: 10.1007/s10751-014-1109-5

  • Spin-Aligned Radioactive Isotope Beams via Two-Step Fragmentation Reaction Reviewed

    Hideki Ueno, Yuichi Ichikawa

    Nuclear Physics News   25 ( 2 )   12 - 16   2015.4

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    DOI: 10.1080/10619127.2015.1006503

  • EDM measurement in 129Xe atom using dual active feedback nuclear spin maser Reviewed

    T. Sato, Y. Ichikawa, Y. Ohtomo, Y. Sakamoto, S. Kojima, C. Funayama, T. Suzuki, M. Chikamori, E. Hikota, M. Tsuchiya, T. Furukawa, A. Yoshimi, C. P. Bidinosti, T. Ino, H. Ueno, Y. Matsuo, T. Fukuyama, K. Asahi

    Hyperfine Interactions   230 ( 1-3 )   147 - 153   2015.4

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    DOI: 10.1007/s10751-014-1113-9

  • Laser-radio-frequency double-resonance spectroscopy of 84-87Rb isotopes trapped in superfluid helium Reviewed

    Xiaofei Yang, Takeshi Furukawa, Takashi Wakui, Tomomi Fujita, Kei Imamura, Yosuke Mitsuya, Miki Hayasaka, Yuichi Ichikawa, Yoko Ishibashi, Hazuki Shirai, Takahiro Suzuki, Yuta Ebara, Atsushi Hatakeyama, Michiharu Wada, Tetsu Sonoda, Yuta Ito, Tohru Kobayashi, Shunji Nishimura, Mizuki Kurata-Nishimura, Yosuke Kondo, Ken Ichiro Yoneda, Shigeru Kubono, Yoshimitsu Ohshiro, Hideki Ueno, Tsutomu Shinozuka, Tadashi Shimoda, Koichiro Asahi, Yukari Matsuo

    Physical Review A - Atomic, Molecular, and Optical Physics   90 ( 5 )   2014.11

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    DOI: 10.1103/PhysRevA.90.052516

  • Quadrupole collectivity in island-of-inversion nuclei 28,30Ne and 34,36Mg Reviewed

    Physical Review C - Nuclear Physics   89 ( 5 )   2014.5

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    DOI: 10.1103/PhysRevC.89.054307

  • Active nuclear spin maser oscillation with double cell Reviewed

    E. Hikota, M. Chikamori, Y. Ichikawa, Y. Ohtomo, Y. Sakamoto, T. Suzuki, C. P. Bidinosti, T. Inoue, T. Furukawa, A. Yoshimi, K. Suzuki, T. Nanao, H. Miyatake, M. Tsuchiya, N. Yoshida, H. Shirai, T. Ino, H. Ueno, Y. Matsuo, T. Fukuyama, K. Asahi

    2013 International Nuclear Physics Conference, INPC 2013 EPJ Web of Conferences   66   05005 - 05005   2014.4

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    DOI: 10.1051/epjconf/20146605005

  • Search for electric dipole moment in 129Xe atom using active nuclear spin maser Reviewed

    Y. Ichikawa, M. Chikamori, Y. Ohtomo, E. Hikota, Y. Sakamoto, T. Suzuki, C. P. Bidinosti, T. Inoue, T. Furukawa, A. Yoshimi, K. Suzuki, T. Nanao, H. Miyatake, M. Tsuchiya, N. Yoshida, H. Shirai, T. Ino, H. Ueno, Y. Matsuo, T. Fukuyama, K. Asahi

    2013 International Nuclear Physics Conference, INPC 2013 EPJ Web of Conferences   66   05007 - 05007   2014.4

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    DOI: 10.1051/epjconf/20146605007

  • An effective method for trapping ion beams in superfluid helium for laser spectroscopy experiments Reviewed

    X. F. Yang, T. Furukawa, T. Wakui, K. Imamura, H. Fujita, Y. Mitsuya, M. Hayasaka, Y. Ichikawa, Y. Ishibashi, H. Shirai, Y. Ebara, A. Hatakeyama, M. Wada, T. Sonoda, T. Ito, T. Kobayashi, S. Nishimura, M. Nishimura, Y. Kondo, K. Yoneda, H. Ueno, T. Shinozuka, T. Shimoda, K. Asahi, Y. Matsuo

    2013 International Nuclear Physics Conference, INPC 2013 EPJ Web of Conferences   66   2014.4

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    DOI: 10.1051/epjconf/20146611041

  • Spin-aligned RI beams via two-step fragmentation reactions Reviewed

    Y. Ichikawa, H. Ueno, Y. Ishii, T. Furukawa, A. Yoshimi, D. Kameda, H. Watanabe, N. Aoi, K. Asahi, D. L. Balabanski, R. Chevrier, J. M. Daugas, N. Fukuda, G. Georgiev, H. Hayashi, H. Iijima, N. Inabe, T. Inoue, M. Ishihara, T. Kubo, T. Nanao, T. Ohnishi, K. Suzuki, M. Tsuchiya, H. Takeda, M. M. Rajabali

    Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms   317 ( PART B )   769 - 773   2013.12

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    DOI: 10.1016/j.nimb.2013.04.071

  • Novel nuclear laser spectroscopy method using superfluid helium for measurement of spins and moments of exotic nuclei Reviewed

    Takeshi Furukawa, Takashi Wakui, Xiaofei Yang, Tomomi Fujita, Kei Imamura, Yasuhiro Yamaguchi, Hiroki Tetsuka, Yoshiki Tsutsui, Yosuke Mitsuya, Yuichi Ichikawa, Yoko Ishibashi, Naoki Yoshida, Hazuki Shirai, Yuta Ebara, Miki Hayasaka, Shino Arai, Sosuke Muramoto, Atsushi Hatakeyama, Michiharu Wada, Tetsu Sonoda, Yuta Ito, Tohru Kobayashi, Shunji Nishimura, Mitsuki Nishimura, Yosuke Kondo, Ken Ichiro Yoneda, Shigeru Kubono, Yoshimitsu Ohshiro, Hideki Ueno, Tsutomu Shinozuka, Tadashi Shimoda, Koichiro Asahi, Yukari Matsuo

    Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms   317 ( PART B )   590 - 594   2013.12

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    DOI: 10.1016/j.nimb.2013.08.023

  • Development of an adiabatic field rotation system to measure spin polarization of unstable nuclei Reviewed

    Y. Ishibashi, N. Yoshida, H. Ueno, A. Yoshimi, Y. Ichikawa, Y. Abe, K. Asahi, M. Chikamori, T. Fujita, T. Furukawa, E. Hikota, D. Nagae, Y. Ohtomo, Y. Saito, H. Shirai, T. Suzuki, X. F. Yang, N. Sakamoto

    Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms   317 ( PART B )   714 - 716   2013.12

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    DOI: 10.1016/j.nimb.2013.08.059

  • Development of a new device control system for β-NMR experiments Reviewed

    317 ( PART B )   705 - 709   2013.12

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    We have developed a device-control system of a β-NMR apparatus for the measurement of nuclear electromagnetic nuclear moments of rare isotopes. In this development, we installed fast relay switches into a high-power tank circuit in order to apply a strong oscillating magnetic field and to sweep its frequency as wide as possible. The system enables to conduct NMR frequency scans with wide frequency windows by dynamically changing the tank-circuit resonant frequency. Furthermore, logical electric-circuit modules of the data taking system were replaced by a programmable logic module. The system performance was evaluated in the β-NMR experiments conducted at the RIBF facility using 20F and 33Cl radioactive isotopes.

    DOI: 10.1016/j.nimb.2013.08.057

  • Development of a helium cryostat for laser spectroscopy of atoms with unstable nuclei in superfluid helium Reviewed

    Kei Imamura, Takeshi Furukawa, Takashi Wakui, Xiaofei Yang, Yasuhiro Yamaguchi, Hiroki Tetsuka, Yosuke Mitsuya, Yoshiki Tsutsui, Tomomi Fujita, Yuta Ebara, Miki Hayasaka, Shino Arai, Sosuke Muramoto, Yuichi Ichikawa, Yoko Ishibashi, Naoki Yoshida, Hazuki Shirai, Atsushi Hatakeyama, Michiharu Wada, Tetsu Sonoda, Yuta Ito, Hitoshi Odashima, Tohru Kobayashi, Hideki Ueno, Tadashi Shimoda, Koichiro Asahi, Yukari Matsuo

    Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms   317 ( PART B )   595 - 598   2013.12

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    DOI: 10.1016/j.nimb.2013.08.024

  • Control of stopping position of radioactive ion beam in superfluid helium for laser spectroscopy experiments Reviewed

    X. F. Yang, T. Furukawa, T. Wakui, K. Imamura, H. Tetsuka, T. Fujita, Y. Yamaguchi, Y. Tsutsui, Y. Mitsuya, Y. Ichikawa, Y. Ishibashi, N. Yoshida, H. Shirai, Y. Ebara, M. Hayasaka, S. Arai, S. Muramoto, A. Hatakeyama, M. Wada, T. Sonoda, Y. Ito, T. Kobayashi, S. Nishimura, M. Nishimura, Y. Kondo, K. Yoneda, H. Ueno, T. Shinozuka, T. Shimoda, K. Asahi, Y. Matsuo

    Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms   317 ( PART B )   599 - 602   2013.12

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    DOI: 10.1016/j.nimb.2013.07.068

  • Analyzing Power in Elastic Scattering of Polarized Protons from Neutron-rich Helium Isotopes Reviewed

    S. Sakaguchi, Y. Iseri, T. Uesaka, M. Tanifuji, N. Aoi, E. Hiyama, Y. Ichikawa, S. Ishikawa, K. Itoh, M. Itoh, H. Iwasaki, T. Kawabata, T. Kawahara, H. Kuboki, Y. Maeda, T. Nakao, H. Okamura, H. Sakai, Y. Sasamoto, M. Sasano, Y. Satou, K. Sekiguchi, K. Suda, D. Suzuki, A. Tamii, T. Wakui, K. Yako, M. Yamaguchi, Y. Yamamoto

    Few-Body Systems   54 ( 7-10 )   1393 - 1398   2013.8

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    DOI: 10.1007/s00601-013-0617-1

  • Nuclear spin maser and experimental search for 129Xe atomic EDM Reviewed

    T. Inoue, T. Furukawa, A. Yoshimi, Y. Ichikawa, M. Chikamori, Y. Ohtomo, M. Tsuchiya, N. Yoshida, H. Shirai, M. Uchida, K. Suzuki, T. Nanao, H. Miyatake, H. Ueno, Y. Matsuo, T. Fukuyama, K. Asahi

    Hyperfine Interactions   220 ( 1-3 )   59 - 63   2013.2

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    DOI: 10.1007/s10751-012-0751-z

  • Shallow and diffuse spin-orbit potential for proton elastic scattering from neutron-rich helium isotopes at 71 MeV/nucleon Reviewed

    Sekiguchi K., Shimamura T., Sasamoto Y., Sakaguchi S., Uesaka T., Aoi N., Ichikawa Y., Itoh K., Itoh M., Kawabata T., Kawahara T., Kondo Y., Kuboki H., Nakamura T., Nakao T., Nakayama Y., Sakai H., Wakui T., Shimizu Y.

    Physical Review C - Nuclear Physics   87 ( 2 )   21601 - 21601   2013.2

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    Shallow and diffuse spin-orbit potential for proton elastic scattering from neutron-rich helium isotopes at 71 MeV/nucleon
    Vector analyzing powers for proton elastic scattering from 8He at 71 MeV/nucleon have been measured using a solid polarized proton target operated in a low magnetic field of 0.1 T. The spin-orbit potential obtained from a phenomenological optical model analysis is found to be significantly shallower and more diffuse than the global systematics of stable nuclei, which is an indication that the spin-orbit potential is modified for scattering involving neutron-rich nuclei. A close similarity between the matter radius and the root-mean-square radius of the spin-orbit potential is also identified.

    DOI: 10.1103/PhysRevC.87.021601

  • Momentum dependence of spin polarization for beta emitting nuclei produced through charge exchange reaction at intermediate energy Reviewed

    Momota S., Mihara M., Nishimura D., Fukuda M., Kamisho Y., Wakabayashi M., Matsuta K., Suzuki S., Nagashima M., Zhu Shengyun, Yuan Daqing, Zheng Yongnan, Yi Zuo, Fan Ping, Izumikawa T., Kitagawa A., Sato S., Kanazawa M., Torikoshi M., Minamisono T., Nakamura Y., Tashiro K., Honma A., Yoshida N., Shirai H., Ohtsubo T., Nagatomo T., Uenishi H., Iwamoto K., Yaguchi M., Ogura T., Ito T., Yamamura K., Ichikawa Y., Nojiri Y., Alonso J. R., Symons T. J. M.

    Hyperfine Interactions   220 ( 1-3 )   53 - 58   2013.1

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    Momentum dependence of spin polarization for beta emitting nuclei produced through charge exchange reaction at intermediate energy
    In order to investigate the polarization process in charge exchange reactions, we observed the momentum and angular distribution as well as the nuclear polarization of a proton-rich beta-emitting nucleus, 28P (Iπ = 3+, T1/2 = 270 msec), produced through the reaction 28Si+9Be at E = 100 MeV/u, by selecting the momentum and the ejection angle. An analysis by using double Gaussian functions resolved the observed momentum distribution into two reaction components, nucleon knockout and pick-up abrasion reactions, as suggested in a previous study. The behavior of the observed angular distribution and nuclear polarization implies the influence of those two components. The momentum dependence of the observed nuclear polarization of 28P could be consistently reproduced by a simple model, in which two reaction components are considered. The present study also shows that the charge exchange reaction at intermediate energy is a useful method to produce polarized beta-emitting nuclei, especially for proton-rich nuclei.

    DOI: 10.1007/s10751-012-0741-1

  • Novel method for the production of spin-aligned RI beams in projectile fragmentation reaction with the dispersion matching technique Reviewed

    Y. Ichikawa, H. Ueno, Y. Ishii, T. Furukawa, A. Yoshimi, D. Kameda, H. Watanabe, N. Aoi, K. Asahi, D. L. Balabanski, R. Chevrier, J. M. Daugas, N. Fukuda, G. Georgiev, H. Hayashi, H. Iijima, N. Inabe, T. Inoue, M. Ishihara, T. Kubo, T. Nanao, T. Ohnishi, K. Suzuki, M. Tsuchiya, H. Takeda, M. M. Rajabali

    Hyperfine Interactions   220 ( 1-3 )   47 - 51   2013.1

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    DOI: 10.1007/s10751-012-0682-8

  • Erosion of N=20 shell in Al 33 investigated through the ground-state electric quadrupole moment Reviewed

    Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics   714 ( 2-5 )   246 - 250   2012.8

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    DOI: 10.1016/j.physletb.2012.07.030

  • Low-frequency 129Xe nuclear spin oscillator with optical spin detection Reviewed

    A. Yoshimi, T. Inoue, T. Furukawa, T. Nanao, K. Suzuki, M. Chikamori, M. Tsuchiya, H. Hayashi, M. Uchida, N. Hatakeyama, S. Kagami, Y. Ichikawa, H. Miyatake, K. Asahi

    Physics Letters, Section A: General, Atomic and Solid State Physics   376 ( 24-25 )   1924 - 1929   2012.5

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    DOI: 10.1016/j.physleta.2012.04.043

  • Isobaric analog resonances of the N=21 nucleus 35Si Reviewed

    N. Imai, Y. Hirayama, Y. X. Watanabe, T. Teranishi, T. Hashimoto, S. Hayakawa, Y. Ichikawa, H. Ishiyama, S. C. Jeong, D. Kahl, S. Kubono, H. Miyatake, H. Ueno, H. Yamaguchi, K. Yoneda, A. Yoshimi

    Physical Review C - Nuclear Physics   85 ( 3 )   2012.3

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    DOI: 10.1103/PhysRevC.85.034313

  • Production of spin-aligned RI beam via two-step fragmentation with dispersion matching Reviewed

    Y. Ichikawa, H. Ueno, Y. Ishii, T. Furukawa, A. Yoshimi, D. Kameda, H. Watanabe, N. Aoi, K. Asahi, D. L. Balabanski, R. Chevrier, J. M. Daugas, N. Fukuda, G. Georgiev, H. Hayashi, H. Iijima, N. Inabe, T. Inoue, M. Ishihara, T. Kubo, T. Nanao, T. Ohnishi, K. Suzuki, M. Tsuchiya, H. Takeda, M. M. Rajabali

    Rutherford Centennial Conference on Nuclear Physics Journal of Physics: Conference Series   381 ( 1 )   2012.1

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    DOI: 10.1088/1742-6596/381/1/012090

  • Analyzing power in elastic scattering of ^<6>He from a polarized proton target at 71 MeV/nucleon Reviewed

    Ishikawa S., Matsuo R., Maeda Y., Kuboki H., Kawahara T., Kawabata T., Karataglidis S., Iwasaki H., Itoh M., Itoh K., Ichikawa Y., Ichikawa M., Hiyama E., Hashimoto Y., Aoi N., Amos K., Tanifuji M., Uesaka T., Iseri Y., Sakaguchi S., Yamamoto Y., Yamaguchi M., Yako K., Wakui T., Tamii A., Takahashi Y., Suzuki D., Suda K., Shinohara M., Sekiguchi K., Satou Y., Sasano M., Sasamoto Y., Sakai H., Okamura H., Nakao T.

    Physical Review C - Nuclear Physics   84 ( 2 )   24604 - 24604   2011.8

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    Analyzing power in elastic scattering of 6He from a polarized proton target at 71 MeV/nucleon
    The vector analyzing power has been measured for the elastic scattering of neutron-rich 6He from polarized protons at 71 MeV/nucleon making use of a newly constructed solid polarized proton target operated in a low magnetic field and at high temperature. Two approaches based on local one-body potentials were applied to investigate the spin-orbit interaction between a proton and a 6He nucleus. An optical model analysis revealed that the spin-orbit potential for 6He is characterized by a shallow and long-ranged shape compared with the global systematics of stable nuclei. A semimicroscopic analysis with an α+n+n cluster folding model suggests that the interaction between a proton and the α core is essentially important in describing the p+6He elastic scattering. The data are also compared with fully microscopic analyses using nonlocal optical potentials based on nucleon-nucleon g matrices.

    DOI: 10.1103/PhysRevC.84.024604

  • Elastic scattering of neutron-rich helium isotopes from polarized protons at 71 MeV/A Reviewed

    S. Sakaguchi, T. Uesaka, T. Kawabata, T. Wakui, N. Aoi, Y. Hashimoto, Y. Ichikawa, K. Itoh, M. Itoh, H. Iwasaki, T. Kawahara, Y. Kondo, H. Kuboki, Y. Maeda, T. Nakamura, T. Nakao, Y. Nakayama, H. Okamura, H. Sakai, Y. Sasamoto, M. Sasano, Y. Satou, K. Sekiguchi, T. Shimamura, Y. Shimizu, M. Shinohara, K. Suda, D. Suzuki, Y. Takahashi, A. Tamii, K. Yako, M. Yamaguchi

    International Nuclear Physics Conference 2010, INPC2010 Journal of Physics: Conference Series   312 ( SECTION 8 )   2011.1

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    DOI: 10.1088/1742-6596/312/8/082037

  • Proton-rich nuclear structure and mirror asymmetry investigated by β-decay spectroscopy of 24Si Reviewed

    312 ( SECTION 9 )   2011.1

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    In order to investigate the characteristic properties of proton-rich nuclei, β-decay spectroscopy was carried out on 24Si. The Gamow-Teller transition strength B(GT) of 24Si to low-lying states in 24Al was determined. Considering in particular the breaking of mirror symmetry for energy levels and B(GT), we discuss the behavior of a weakly-bound s-orbital proton by incorporating a recent experimental result.

    DOI: 10.1088/1742-6596/312/9/092031

  • Precise branching ratio of 24mAl beta decay Reviewed

    International Nuclear Physics Conference 2010, INPC2010 Journal of Physics: Conference Series   312 ( SECTION 9 )   2011.1

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    DOI: 10.1088/1742-6596/312/9/092039

  • Photon detection from stopped 87Rb atoms injected into superfluid helium for a new nuclear laser spectroscopy of rare radioisotopes Reviewed

    T. Furukawa, T. Wakui, A. Sasaki, S. Izumi, Y. Ichikawa, A. Yoshimi, K. Tajiri, Y. Ishii, N. Yoshida, Y. Matsuura, Y. Kato, Y. Yamaguchi, K. Imamura, M. Makuta, A. Hatakeyama, M. Wada, T. Sonoda, Y. Ito, T. Nanao, T. Kobayashi, S. Nishimura, M. Nishimura, Y. Kondo, N. Aoi, K. Yoneda, S. Kubono, Y. Ohshiro, H. Ueno, T. Shimoda, T. Shinozuka, K. Asahi, Y. Matsuo

    Journal of Physics: Conference Series   302 ( 1 )   2011.1

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    Language:English   Publishing type:Research paper (other academic)  

    DOI: 10.1088/1742-6596/302/1/012054

  • Beta-NMR measurement of 58Cu in Si Reviewed

    M. Mihara, T. Izumikawa, H. Ueno, K. Matsuta, D. Nishimura, T. Nagatomo, T. Moriguchi, Y. Ito, D. Nagae, M. Fukuda, A. Yoshimi, K. Yamada, M. Takechi, Y. Ichikawa, S. Momota, Y. Hirayama, T. Ohtsubo, S. Suzuki, T. Kubo, Y. Namiki, A. Ozawa, Y. Ishibashi, H. Oishi, K. Suzuki, I. Hachiuma, K. Namihira, D. Horikawa, T. Minamisono, T. Yamaguchi, T. Kuboki, T. Suzuki, K. Satoh, Y. Kobayashi, K. Asahi, K. Matsukawa, K. Shirai

    Hyperfine Interactions   197 ( 1 )   143 - 147   2010.12

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    DOI: 10.1007/s10751-010-0249-5

  • Precise nuclear moments of extremely proton-rich nuclus 23Al Reviewed

    T. Nagatomo, H. Ueno, M. Mihara, K. Matsuta, A. Yoshimi, Y. Ichikawa, K. Yamada, H. Kawamura, A. Ozawa, T. Moriguchi, Y. Ishibashi, K. Asahi, M. Uchida, K. Suzuki, T. Inoue, Y. Hasama, H. Iijima, T. Sumikama, M. Fukuda, T. Minamisono

    Hyperfine Interactions   198 ( 1 )   103 - 107   2010.12

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    DOI: 10.1007/s10751-010-0262-8

  • Analyzing power for proton elastic scattering from the neutron-rich He6 nucleus Reviewed

    T. Uesaka, S. Sakaguchi, Y. Iseri, K. Amos, N. Aoi, Y. Hashimoto, E. Hiyama, M. Ichikawa, Y. Ichikawa, S. Ishikawa, K. Itoh, M. Itoh, H. Iwasaki, S. Karataglidis, T. Kawabata, T. Kawahara, H. Kuboki, Y. Maeda, R. Matsuo, T. Nakao, H. Okamura, H. Sakai, Y. Sasamoto, M. Sasano, Y. Satou, K. Sekiguchi, M. Shinohara, K. Suda, D. Suzuki, Y. Takahashi, M. Tanifuji, A. Tamii, T. Wakui, K. Yako, Y. Yamamoto, M. Yamaguchi

    Physical Review C - Nuclear Physics   82 ( 2 )   2010.8

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1103/PhysRevC.82.021602

  • Gamow-Teller transition of the proton-rich nucleus 24Si

    Y. Ichikawa, T. K. Onishi, D. Suzuki, H. Iwasaki, T. Kubo, V. Naik, A. Chakrabarti, N. Aoi, B. A. Brown, N. Fukuda, S. Kubono, T. Motobayashi, T. Nakabayashi, T. Nakamura, T. Nakao, T. Okumura, H. J. Ong, H. Suzuki, M. K. Suzuki, T. Teranishi, K. N. Yamada, H. Yamaguchi, H. Sakurai

    7th Japan-China Joint Nuclear Physics Symposium Nuclear Physics Trends - 7th China-Japan Joint Nuclear Physics Symposium   265 - 269   2010.7

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    DOI: 10.1063/1.3442606

  • Mirror asymmetry investigated by β decay of proton-rich 24Si Reviewed

    25 ( 21-23 )   1895 - 1898   2010.7

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    The β-decay spectroscopy on 24Si was carried out in order to investigate characteristic properties of proton-rich nuclei from a perspective of mirror asymmetry. We observed two β transitions to low-lying bound states in 24Al for the first time. The B(GT) of 24Si were deduced to be 0.13(2) and 0.14(2), which were smaller than those of the mirror transition by 22(11)&#37; and 10(8)&#37;, respectively. Through the comparison with theoretical calculations taking into account the Coulomb force and the Thomas-Ehrman shift, the mirror asymmetry of B(GT) is attributed to the lowering of the proton 1s1/2 orbital.

    DOI: 10.1142/S0217732310000587

  • Mirror asymmetry for B(GT) of 24Si induced by Thomas-Ehrman shift

    Y. Ichikawa, T. K. Onishi, D. Suzuki, H. Iwasaki, T. Kubo, V. Naik, A. Chakrabarti, N. Aoi, B. A. Brown, N. Fukuda, S. Kubono, T. Motobayashi, T. Nakabayashi, T. Nakamura, T. Nakao, T. Okumura, H. J. Ong, H. Suzuki, M. K. Suzuki, T. Teranishi, K. N. Yamada, H. Yamaguchi, H. Sakurai

    7th Tours Symposium on Nuclear Physics and Astrophysics Tours Symposium on Nuclear Physics and Astrophysics - VII   290 - 293   2010.7

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    DOI: 10.1063/1.3455953

  • Resonant neutrino scattering An impossible experiment? Reviewed

    D. Suzuki, T. Sumikama, M. Ogura, W. Mittig, A. Shiraki, Y. Ichikawa, H. Kimura, H. Otsu, H. Sakurai, Y. Nakai, M. S. Hussein

    Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics   687 ( 2-3 )   144 - 148   2010.4

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    Language:English  

    DOI: 10.1016/j.physletb.2010.03.024

  • Beta-decay study of Tz = - 2 proton-rich nucleus 24Si Reviewed

    Y. Ichikawa, T. Kubo, N. Aoi, V. Banerjee, A. Chakrabarti, N. Fukuda, H. Iwasaki, S. Kubono, T. Motobayashi, T. Nakabayashi, T. Nakamura, T. Nakao, T. Okumura, H. J. Ong, T. K. Onishi, D. Suzuki, H. Suzuki, M. K. Suzuki, T. Teranishi, K. N. Yamada, H. Yamaguchi, H. Sakurai

    European Physical Journal A   42 ( 3 )   375 - 378   2009.12

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    DOI: 10.1140/epja/i2008-10761-8

  • Yrast spectroscopy in 49-51Ti via fusion-evaporation reaction induced by a radioactive beam Reviewed

    M. Niikura, E. Ideguchi, N. Aoi, H. Baba, T. Fukuchi, Y. Ichikawa, H. Iwasaki, T. Kubo, M. Kurokawa, M. Liu, S. Michimasa, T. Ohnishi, T. K. Onishi, S. Ota, S. Shimoura, H. Suzuki, D. Suzuki, Y. Wakabayashi, K. Yoshida, Y. Zheng

    European Physical Journal A   42 ( 3 )   471 - 475   2009.12

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    DOI: 10.1140/epja/i2009-10857-7

  • Observation/confirmation of hindered E2 strength in 18C/16C Reviewed

    H. J. Ong, N. Imai, D. Suzuki, H. Iwasaki, H. Sakurai, T. K. Onishi, M. K. Suzuki, S. Ota, S. Takeuchi, T. Nakao, Y. Togano, Y. Kondo, N. Aoi, H. Baba, S. Bishop, Y. Ichikawa, M. Ishihara, T. Kubo, K. Kurita, T. Motobayashi, T. Nakamura, T. Okumura, Y. Yanagisawa

    European Physical Journal A   42 ( 3 )   393 - 396   2009.12

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    DOI: 10.1140/epja/i2009-10804-8

  • Electric quadrupole moment of the neutron-rich 33Al Reviewed

    European Physical Journal A   42 ( 3 )   383 - 385   2009.12

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    DOI: 10.1140/epja/i2009-10885-3

  • Investigation into behavior of weakly-bound proton via B(GT) measurement for the β decay of 24Si

    98 - 101   2009.11

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    The β-decay spectroscopy on 24Si was carried out in order to investigate the behavior of a weakly-bound s-wave proton. We observed two β transitions to low-lying bound states in 24Al for the first time. The Gamow-Teller transition strengths B(GT) to the 1+ 1 and 1+2 states were deduced to be 0.13(2) and 0.14(1), which were smaller than that of mirror nucleus 24Ne by 22 % and 10%, respectively. These mirror asymmetries of B(GT) indicate the configuration change in the wave function. By comparing with theoretical shell-model calculations, it is implied that the configuration change is attributed to the lowering of the Is1/2orbital.

    DOI: 10.1063/1.3232163

  • Precision measurement of the electric quadrupole moment of 31Al and determination of the effective proton charge in the sd-shell Reviewed

    Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics   678 ( 4 )   344 - 349   2009.7

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    DOI: 10.1016/j.physletb.2009.06.043

  • Anomalously hindered E2 strengths in 16,18C Reviewed

    Hooi Jin Ong, Nobuaki Imai, Daisuke Suzuki, Hironori Iwasaki, Takeo Onishi, Masaru Suzuki, Taro Nakao, Yuichi Ichikawa, Shinsuke Ota, Hiroyoshi Sakurai, Satoshi Takeuchi, Nori Aoi, Hidetada Baba, Shawn Bishop, Masayasu Ishihara, Toshiyuki Kubo, Tohru Motobayashi, Yoshiyuki Yanagisawa, Yasuhiro Togano, Kazuo Kurita, Yosuke Kondo, Takashi Nakamura, Toshifumi Okumura

    International Journal of Modern Physics A   24 ( 11 )   2168 - 2174   2009.4

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    DOI: 10.1142/S0217751X09045753

  • Lifetime measurements of excited states in 17C Possible interplay between collectivity and halo effects Reviewed

    D. Suzuki, H. Iwasaki, H. J. Ong, N. Imai, H. Sakurai, T. Nakao, N. Aoi, H. Baba, S. Bishop, Y. Ichikawa, M. Ishihara, Y. Kondo, T. Kubo, K. Kurita, T. Motobayashi, T. Nakamura, T. Okumura, T. K. Onishi, S. Ota, M. K. Suzuki, S. Takeuchi, Y. Togano, Y. Yanagisawa

    Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics   666 ( 3 )   222 - 227   2008.8

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    DOI: 10.1016/j.physletb.2008.07.055

  • Persistence of the N=50 shell closure in the neutron-rich isotope Ge80 Reviewed

    H. Iwasaki, S. Michimasa, M. Niikura, M. Tamaki, N. Aoi, H. Sakurai, S. Shimoura, S. Takeuchi, S. Ota, M. Honma, T. K. Onishi, E. Takeshita, H. J. Ong, H. Baba, Z. Elekes, T. Fukuchi, Y. Ichikawa, M. Ishihara, N. Iwasa, S. Kanno, R. Kanungo, S. Kawai, T. Kubo, K. Kurita, T. Motobayashi, A. Saito, Y. Satou, H. Suzuki, M. K. Suzuki, Y. Togano, Y. Yanagisawa

    Physical Review C - Nuclear Physics   78 ( 2 )   2008.8

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    DOI: 10.1103/PhysRevC.78.021304

  • Lifetime measurements of first excited states in C16,18 Reviewed

    H. J. Ong, N. Imai, D. Suzuki, H. Iwasaki, H. Sakurai, T. K. Onishi, M. K. Suzuki, S. Ota, S. Takeuchi, T. Nakao, Y. Togano, Y. Kondo, N. Aoi, H. Baba, S. Bishop, Y. Ichikawa, M. Ishihara, T. Kubo, K. Kurita, T. Motobayashi, T. Nakamura, T. Okumura, Y. Yanagisawa

    Physical Review C - Nuclear Physics   78 ( 1 )   2008.7

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    DOI: 10.1103/PhysRevC.78.014308

  • Analyzing power measurement for elastic scattering of 6He on polarized protons

    S. Sakaguchi, T. Uesaka, T. Wakui, T. Kawabata, N. Aoi, Y. Hashimoto, M. Ichikawa, Y. Ichikawa, K. Itoh, M. Itoh, H. Iwasaki, T. Kawahara, H. Kuboki, Y. Maeda, R. Matsuo, T. Nakao, H. Okamura, H. Sakai, N. Sakamoto, Y. Sasamoto, M. Sasano, Y. Satou, K. Sekiguchi, M. Shinohara, K. Suda, D. Suzuki, Y. Takahashi, A. Tamii, K. Yako, M. Yamaguchi

    17th International Spin Physics Symposium Proceedings of the 17th International Spin Physics Symposium   833 - 836   2007.9

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    DOI: 10.1063/1.2750906

  • Elastic scattering of 8B on Pb, liquid hydrogen and liquid helium targets and the 7Be(p,γ)8B S-Factor Reviewed

    2006.12

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    The solar 7Be(p,γ)8B reaction, occurring in the solar PPIII chain, is responsible for the high energy neutrino flux observed in such facilities as SNO and Super Kamiokande. This neutrino flux is sensitive to the astrophysical S-factor of this reaction, S17. We have performed a 8B Coulomb Dissociation (CD) experiment using Pb, liquid He, and liquid H2 targets in an effort to extract S17. Elastic scattering data of 8B on these 3 targets will be presented along a discussion of their use in analyzing CD data.

  • Beta decay of 46Cr Reviewed

    T. K. Onishi, A. Gelberg, H. Sakurai, K. Yoneda, N. Aoi, N. Imai, H. Baba, P. Von Brentano, N. Fukuda, Y. Ichikawa, M. Ishihara, H. Iwasaki, D. Kameda, T. Kishida, A. F. Lisetskiy, H. J. Ong, M. Osada, T. Otsuka, M. K. Suzuki, K. Ue, Y. Utsuno, H. Watanabe

    Journal of Physics: Conference Series   49 ( 1 )   51 - 52   2006.10

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    DOI: 10.1088/1742-6596/49/1/012

  • Spectroscopy on neutron-rich nuclei near N =50 via two-step Coulomb excitation at intermediate energies Reviewed

    H. Iwasaki, M. Tamaki, S. Michimasa, M. Niikura, S. Shimoura, N. Aoi, S. Takeuchi, S. Ota, T. K. Onishi, E. Takeshita, H. J. Ong, H. Baba, Z. Elekes, T. Fukuchi, Y. Ichikawa, M. Ishihara, N. Iwasa, S. Kanno, R. Kanungo, S. Kawai, T. Kubo, K. Kurita, A. Saito, Y. Satou, H. Suzuki, M. K. Suzuki, Y. Togano, Y. Yanagisawa, H. Sakurai, T. Motobayashi

    Journal of Physics: Conference Series   49 ( 1 )   65 - 66   2006.10

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    DOI: 10.1088/1742-6596/49/1/015

  • First experiment of 6He with a polarized proton target Reviewed

    M. Hatano, H. Sakai, T. Wakui, T. Uesaka, N. Aoi, Y. Ichikawa, T. Ikeda, K. Itoh, H. Iwasaki, T. Kawabata, H. Kuboki, Y. Maeda, N. Matsui, T. Ohnishi, T. K. Onishi, T. Saito, N. Sakamoto, M. Sasano, Y. Satou, K. Sekiguchi, K. Suda, A. Tamii, Y. Yanagisawa, K. Yako

    European Physical Journal A   25 ( SUPPL. 1 )   255 - 258   2005.9

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1140/epjad/i2005-06-110-5

  • Intermediate-energy Coulomb excitation of the neutron-rich Ge isotopes around N = 50 Reviewed

    H. Iwasaki, N. Aoi, S. Takeuchi, S. Ota, H. Sakurai, M. Tamaki, T. K. Onishi, E. Takeshita, H. J. Ong, N. Iwasa, H. Baba, Z. Elekes, T. Fukuchi, Y. Ichikawa, M. Ishihara, S. Kanno, R. Kanungo, S. Kawai, T. Kubo, K. Kurita, S. Michimasa, M. Niikura, A. Saito, Y. Satou, S. Shimoura, H. Suzuki, M. K. Suzuki, Y. Togano, Y. Yanagisawa, T. Motobayashi

    European Physical Journal A   25 ( SUPPL. 1 )   415 - 417   2005.9

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    DOI: 10.1140/epjad/i2005-06-154-5

  • Decoupling of valence neutrons from the core in 17B Reviewed

    Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics   621 ( 1-2 )   81 - 88   2005.8

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    DOI: 10.1016/j.physletb.2005.06.031

  • Search for an isomeric state in 19C Reviewed

    Nuclear Physics A   757 ( 3-4 )   315 - 328   2005.8

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    DOI: 10.1016/j.nuclphysa.2005.04.015

  • Gamow-teller decay of the T=1 nucleus Cr46 Reviewed

    T. K. Onishi, A. Gelberg, H. Sakurai, K. Yoneda, N. Aoi, N. Imai, H. Baba, P. Von Brentano, N. Fukuda, Y. Ichikawa, M. Ishihara, H. Iwasaki, D. Kameda, T. Kishida, A. F. Lisetskiy, H. J. Ong, M. Osada, T. Otsuka, M. K. Suzuki, K. Ue, Y. Utsuno, H. Watanabe

    Physical Review C - Nuclear Physics   72 ( 2 )   2005.8

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    DOI: 10.1103/PhysRevC.72.024308

  • Low-lying excited states in 17,19C Reviewed

    Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics   614 ( 3-4 )   174 - 180   2005.5

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    DOI: 10.1016/j.physletb.2005.04.007

  • 6He scattering with polarized proton target

    M. Hatano, H. Sakai, T. Wakui, T. Uesaka, N. Aoi, Y. Ichikawa, T. Ikeda, K. Itoh, H. Iwasaki, T. Kawabata, H. Kuboki, Y. Maeda, N. Matsui, T. Ohnishi, T. K. Onishi, T. Saito, N. Sakamoto, M. Sasano, Y. Satou, K. Sekiguchi, K. Suda, A. Tamii, Y. Yanagisawa, K. Yako

    Nuclei at the Limits NUCLEI AT THE LIMITS   360 - 364   2005.4

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    DOI: 10.1063/1.1905336

  • Excited states in neutron rich boron isotopes Reviewed

    Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics   608 ( 3-4 )   206 - 214   2005.2

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    DOI: 10.1016/j.physletb.2005.01.022

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Presentations

  • 核反応によるスピン整列生成と核内スピン構造の探索 Invited

    市川雄一

    原子核におけるスピン自由度の織り成すダイナミクス  2024.12 

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    Event date: 2024.12

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:大阪大学RCNP   Country:Japan  

  • 核反応によるスピン整列生成と核内スピン構造の探索 Invited

    市川雄一

    原子核におけるスピン自由度の織り成すダイナミクス  2024.12 

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    Event date: 2024.12

    Language:Japanese  

    Venue:大阪大学RCNP   Country:Japan  

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  • Nuclear-moment measurements by gamma-ray spectroscopy Invited International conference

    Y. Ichikawa

    Workshop on frontier nuclear studies with gamma-ray spectrometer arrays (gamma24)  2024.3 

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    Event date: 2024.3

    Language:English   Presentation type:Oral presentation (general)  

    Country:Japan  

  • Nuclear-moment measurements by gamma-ray spectroscopy Invited International conference

    Y. Ichikawa

    Workshop on frontier nuclear studies with gamma-ray spectrometer arrays (gamma24)  2024.3 

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    Event date: 2024.3

    Language:English  

    Venue:Minoh, Osaka   Country:Japan  

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  • Recent progress of nuclear moment measurement Invited International conference

    Y. Ichikawa

    RIBF Users Meeting 2022  2022.9 

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    Event date: 2022.9

    Language:English   Presentation type:Oral presentation (general)  

    Country:Japan  

  • Recent progress of nuclear moment measurement Invited International conference

    Y. Ichikawa

    RIBF Users Meeting 2022  2022.9 

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    Event date: 2022.9

    Language:English  

    Venue:Online   Country:Japan  

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  • Nuclear moment measurement: present and future Invited International conference

    Y. Ichikawa

    Physics of RI: Recent progress and perspectives  2022.5 

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    Event date: 2022.5 - 2022.6

    Language:English   Presentation type:Oral presentation (general)  

    Country:Japan  

  • Nuclear moment measurement: present and future Invited International conference

    Y. Ichikawa

    Physics of RI: Recent progress and perspectives  2022.5 

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    Event date: 2022.5 - 2022.6

    Language:English  

    Venue:RIKEN, Wako, Saitama   Country:Japan  

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  • 核スピンから探る原子核・素粒子・宇宙 Invited

    市川 雄一

    原子核三者若手夏の学校  2021.8 

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    Event date: 2021.8

    Language:Japanese   Presentation type:Public lecture, seminar, tutorial, course, or other speech  

    Venue:オンライン開催   Country:Japan  

  • 低エネルギースピン物理 Invited

    市川 雄一

    日本のスピン物理学の展望  2021.2 

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    Event date: 2021.2

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:松江 & オンライン   Country:Japan  

  • Nuclear moment studies using spin-oriented RI beams Invited International conference

    Y. Ichikawa

    REIMEI Workshop on Universal Features of Quantum Flows with Spin, Orbital and Tensor Correlations  2020.2 

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    Event date: 2020.2

    Language:English   Presentation type:Oral presentation (general)  

    Country:Japan  

  • Nuclear-moment measurements of exotic nuclei using spin-oriented RI beams at RIBF Invited International conference

    Y. Ichikawa

    14th Asia-Pacific Physics Conference 2019 (APPC2019)  2019.11 

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    Event date: 2019.11

    Language:English   Presentation type:Oral presentation (general)  

    Country:Malaysia  

  • Interplay between nuclear shell evolution and shape deformation revealed by the magnetic moment of 75Cu Invited International conference

    Y. Ichikawa

    RIBF Nuclear Physics Seminar  2019.2 

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    Event date: 2019.2

    Language:English   Presentation type:Public lecture, seminar, tutorial, course, or other speech  

    Country:Japan  

  • Nuclear magnetic dipole moments measured with spin-oriented RI beams at RIKEN RIBF Invited International conference

    Y. Ichikawa

    The International Conference on HYPERFINE Interactions and Applications (HYPERFINE 2019)  2019.2 

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    Event date: 2019.2

    Language:English   Presentation type:Oral presentation (general)  

    Country:India  

  • Nuclear moment measurement using spin-oriented RI beam at RIBF Invited International conference

    Y. Ichikawa

    International Symposium on RI Beam Physics in the 21st Century: 10th Anniversary of RIBF  2017.12 

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    Event date: 2017.12

    Language:English   Presentation type:Oral presentation (general)  

    Country:Japan  

  • Nuclear moment measurements using spin-aligned RI beam at RIBF Invited International conference

    Y. Ichikawa

    ANL Physics Division Seminar  2017.11 

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    Event date: 2017.11

    Language:English   Presentation type:Public lecture, seminar, tutorial, course, or other speech  

    Country:United States  

  • Magnetic moment measurement of isomeric state of 75Cu using spin-aligned RI beam at RIBF Invited International conference

    Y. Ichikawa

    Advances in Radioactive Isotope Sceinces (ARIS) 2017  2017.5 

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    Event date: 2017.5 - 2017.6

    Language:English   Presentation type:Oral presentation (general)  

    Country:United States  

  • Magnetic moment measurement using spin-aligned beam at RIBF Invited International conference

    Y. Ichikawa

    RIBF Users Meeting 2016  2016.9 

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    Event date: 2016.9

    Language:English   Presentation type:Oral presentation (general)  

    Country:Japan  

  • Overview of RIBF and spin orientation in RI beam Invited International conference

    Y. Ichikawa

    The 14th International CNS Summer School (CNSSS15)  2015.8 

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    Event date: 2015.8 - 2015.9

    Language:Others   Presentation type:Public lecture, seminar, tutorial, course, or other speech  

    Country:Japan  

  • スピン操作したRIビームの生成 Invited

    市川 雄一

    日本物理学会第69回年次大会  2014.3 

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    Event date: 2014.3

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:東海大学(平塚市)   Country:Japan  

  • Search for electric dipole moment of 129Xe using active nuclear spin maser Invited International conference

    Y. Ichikawa

    7th International Workshop on Fundamental Physics Using Atoms (FPUA 2014)  2014.3 

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    Event date: 2014.3

    Language:English   Presentation type:Oral presentation (general)  

    Country:Japan  

  • Experimental search for atomic EDM in 129Xe at Tokyo Tech. Invited International conference

    Y. Ichikawa

    An ICTS Program on CP Violation in Elementary Particles and Composite Systems  2013.2 

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    Event date: 2013.2

    Language:English   Presentation type:Oral presentation (general)  

    Country:India  

  • スピン操作したRIビームの生成 Invited

    市川 雄一

    東北大学CYRICセミナー  2013.1 

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    Event date: 2013.1

    Language:Japanese   Presentation type:Public lecture, seminar, tutorial, course, or other speech  

    Venue:東北大学(仙台市)   Country:Japan  

  • Production of spin-controlled RI beams Invited International conference

    Y. Ichikawa

    RIBF Nuclear Physics Seminar  2012.12 

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    Event date: 2012.12

    Language:English   Presentation type:Public lecture, seminar, tutorial, course, or other speech  

    Country:Japan  

  • Experimental study of EDM in 129Xe atom using nuclear-spin maser Invited International conference

    Y. Ichikawa

    6th International Workshop on Fundamental Physics using Atoms (FPUA 2012)  2012.9 

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    Event date: 2012.9

    Language:English   Presentation type:Oral presentation (general)  

    Country:Japan  

  • Spin manipulation of RI beams from two-stage projectile fragmentation reaction Invited International conference

    Y. Ichikawa

    Advanced Studies Institute on Symmetries and Spin (Spin-Praha-2012)  2012.7 

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    Event date: 2012.7

    Language:English   Presentation type:Oral presentation (general)  

    Country:Czech Republic  

  • 陽子過剰核24Siのベータ崩壊とその鏡映対称性 Invited

    市川 雄一

    日本物理学会2010年秋季大会  2010.9 

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    Event date: 2010.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:九州工業大学(北九州市)   Country:Japan  

  • Nuclear-moment measurements by gamma-ray spectroscopy Invited International conference

    @S. Go, @Y. Tsuzuki, @H. Yoneda, Y. Ichikawa, @T. Ikeda, @N. Imai, @K. Imamura, @M. Niikura, @D. Nishimura, @R. Mizuno, @S. Takeda, @H. Ueno, @S. Watanabe, @T. Y. Saito, @S. Shimoura, @S. Sugawara, @A. Takamine, @T. Takahashi

    Workshop on frontier nuclear studies with gamma-ray spectrometer arrays (gamma24)  2024.3 

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    Event date: 2024.3

    Language:English   Presentation type:Oral presentation (general)  

    Country:Japan  

  • Nuclear-moment measurements by gamma-ray spectroscopy Invited International conference

    S. Go, Y. Tsuzuki, H. Yoneda, Y. Ichikawa, T. Ikeda, N. Imai, K. Imamura, M. Niikura, D. Nishimura, R. Mizuno, S. Takeda, H. Ueno, S. Watanabe, T. Y. Saito, S. Shimoura, S. Sugawara, A. Takamine, T. Takahashi

    Workshop on frontier nuclear studies with gamma-ray spectrometer arrays (gamma24)  2024.3 

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    Event date: 2024.3

    Language:English  

    Venue:Minoh, Osaka   Country:Japan  

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  • Xe原子EDM探索に向けた同位体共存磁力計の開発

    #立川柊平, 市川雄一, #谷本昴平, @佐藤智哉, #安藤蒼太, #篠原悠介, #山本陽介, 西畑洸希, @郷慎太郎, @高峰愛子, @上野秀樹, @旭耕一郎

    第129回日本物理学会九州支部例会  2023.12 

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    Event date: 2023.12

    Language:Japanese  

    Venue:立教大学   Country:Japan  

  • Xe原子EDM探索に向けた同位体共存磁力計の開発

    立川柊平, 市川雄一, 谷本昴平, 佐藤智哉, 安藤蒼太, 篠原悠介, 山本陽介, 西畑洸希, 郷慎太郎, 高峰愛子, 上野秀樹, 旭耕一郎

    第129回日本物理学会九州支部例会  2023.12 

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    Event date: 2023.12

    Language:Japanese  

    Venue:立教大学   Country:Japan  

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  • Injection of High Energetic Ion Beams to Superfluid Helium as a Host Matrix of Laser Spectroscopic Study of Radioisotope Atoms International conference

    @K. Imamura, @A. Takamine, @K. Kikuchi, @R. Mitsuyasu, @S. Akimoto, @M. Ito, @K. Tsubura, @A. Gladkov, @M. Tajima, @S. Go, @M. Mukai, @M. Doi, @M. Nishimura, @T. Yamamoto, @H. Endo, @Y. Fukuzawa, @S. Sasamori, @S. Takahashi, @M. Hase, @K. Kawata, H. Nishibata, Y. Ichikawa, @A. Kitagawa, @T. Wakui, @H. Ueno, @Y. Matsuo

    International Conference on Hyperfine Interactions and their Applications (HYPERFINE2023)  2023.11 

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    Event date: 2023.11

    Language:English   Presentation type:Oral presentation (general)  

    Country:Japan  

  • Nuclear-moment measurement using highly spin-aligned RI beams: Recent activities at RIBF International conference

    Y. Ichikawa

    International Conference on Hyperfine Interactions and their Applications (HYPERFINE2023)  2023.11 

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    Event date: 2023.11

    Language:English   Presentation type:Oral presentation (general)  

    Country:Japan  

  • Nuclear-moment measurement using highly spin-aligned RI beams: Recent activities at RIBF International conference

    Y. Ichikawa

    International Conference on Hyperfine Interactions and their Applications (HYPERFINE2023)  2023.11 

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    Event date: 2023.11

    Language:English  

    Venue:Nara   Country:Japan  

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  • Injection of High Energetic Ion Beams to Superfluid Helium as a Host Matrix of Laser Spectroscopic Study of Radioisotope Atoms International conference

    K. Imamura, A. Takamine, K. Kikuchi, R. Mitsuyasu, S. Akimoto, M. Ito, K. Tsubura, A. Gladkov, M. Tajima, S. Go, M. Mukai, M. Doi, M. Nishimura, T. Yamamoto, H. Endo, Y. Fukuzawa, S. Sasamori, S. Takahashi, M. Hase, K. Kawata, H. Nishibata, Y. Ichikawa, A. Kitagawa, T. Wakui, H. Ueno, Y. Matsuo

    International Conference on Hyperfine Interactions and their Applications (HYPERFINE2023)  2023.11 

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    Event date: 2023.11

    Language:English  

    Venue:Nara   Country:Japan  

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  • EDM測定に向けた129Xe, 131核スピンメーザーの開発

    #立川柊平, 市川雄一, @佐藤智哉, #安藤蒼太, #篠原悠介, #谷本昴平, #山本陽介, 西畑洸希, @郷慎太郎, @高峰愛子, @上野秀樹, @旭耕一郎

    第12回 停止・低速RIビームを用いた核分光研究会(12th SSRI)  2023.9 

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    Event date: 2023.9

    Language:Japanese  

    Venue:立教大学   Country:Japan  

  • EDM測定に向けた<sup>129</sup>Xe, <sup>131</sup>核スピンメーザーの開発

    立川柊平, 市川雄一, 佐藤智哉, 安藤蒼太, 篠原悠介, 谷本昴平, 山本陽介, 西畑洸希, 郷慎太郎, 高峰愛子, 上野秀樹, 旭耕一郎

    第12回 停止・低速RIビームを用いた核分光研究会(12th SSRI)  2023.9 

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    Event date: 2023.9

    Language:Japanese  

    Venue:立教大学   Country:Japan  

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  • Reconstruction of 33Mg→33Al decay scheme International conference

    2023.8 

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    Event date: 2023.8

    Language:English  

    Venue:Wako, Saitama   Country:Japan  

  • Development of dual-species spin maser of 129Xe and 131Xe toward the EDM measurement International conference

    #T. Tanimoto, Y. Ichikawa, #S. Tachikawa, @T. Sato, #S. Ando, #Y. Shinohara, #Y. Yamamoto, H. Nishibata, @S. Go, @A. Takamine, @H. Ueno, @K. Asahi

    A3F-CNS Summer School 2023  2023.8 

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    Event date: 2023.8

    Language:English  

    Country:Japan  

  • Reconstruction of <sup>33</sup>Mg→<sup>33</sup>Al decay scheme International conference

    Y. Yamamoto, H. Nishibata, Y. Ichikawa and S1840 collaboration

    A3F-CNS Summer School 2023  2023.8 

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    Event date: 2023.8

    Language:English  

    Venue:Wako, Saitama   Country:Japan  

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  • Development of dual-species spin maser of <sup>129</sup>Xe and <sup>131</sup>Xe toward the EDM measurement International conference

    T. Tanimoto, Y. Ichikawa, S. Tachikawa, T. Sato, S. Ando, Y. Shinohara, Y. Yamamoto, H. Nishibata, S. Go, A. Takamine, H. Ueno, K. Asahi

    A3F-CNS Summer School 2023  2023.8 

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    Event date: 2023.8

    Language:English  

    Venue:Wako, Saitama   Country:Japan  

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  • EDM測定に向けた能動帰還型核スピンメーザーの開発

    #立川柊平, 市川雄一, @佐藤智哉, #安藤蒼太, #篠原悠介, #谷本昴平, #山本陽介, 西畑洸希, 若狭智嗣, #岸本侃己, #山下渉, #横田望海, #竹中京平, #梶原孝文, #荒殿和希, @郷慎太郎, @高峰愛子, @上野秀樹, @旭耕一郎

    日本物理学会2023年秋季大会  2023.3 

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    Event date: 2023.3

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:オンライン   Country:Japan  

  • EDM測定に向けた能動帰還型核スピンメーザーの開発

    立川柊平, 市川雄一, 佐藤智哉, 安藤蒼太, 篠原悠介, 谷本昴平, 山本陽介, 西畑洸希, 若狭智嗣, 岸本侃己, 山下渉, 横田望海, 竹中京平, 梶原孝文, 荒殿和希, 郷慎太郎, 高峰愛子, 上野秀樹, 旭耕一郎

    日本物理学会2023年秋季大会  2023.3 

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    Event date: 2023.3

    Language:Japanese  

    Venue:オンライン   Country:Japan  

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  • EDM測定に向けた核スピンメーザーの開発

    #安藤蒼太, 市川雄一, @佐藤智哉, #篠原悠介, 西畑洸希, 若狭智嗣, #岸本侃己, #山下渉, #横田望海, #立川柊平, #竹中京平, #梶原孝文, #荒殿和希, @郷慎太郎, @高峰愛子, @上野秀樹, @旭耕一郎

    第128回日本物理学会九州支部例会  2022.12 

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    Event date: 2022.12

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:熊本大学黒髪南キャンパス(熊本県熊本市)   Country:Japan  

  • 分散整合二回散乱法による99Zrアイソマー状態のスピン整列

    #篠原悠介, 市川雄一, @郷慎太郎, 西畑洸希, #安藤蒼太, #荒殿和希, @旭耕一郎, @馬場秀忠, @福田直樹, @G. Georgiev, @A. Gladkov, @今村慧, #梶原孝文, #岸本侃己, @R. Lozeva, @向井もも,@新倉潤. @N. Nurhafiza, @小田原厚子, @清水陽平, @M. Si, @K. Stoychev, @鈴木宏, #立川柊平, @田島美典, @高峰愛子, @竹田浩之, @竹中京平, @武重祥子, @上野秀樹, 若狭智嗣, #山下渉, @山崎展樹, #横田望海, @吉本雅浩, @J. M. Daugas

    第128回日本物理学会九州支部例会  2022.12 

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    Event date: 2022.12

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:熊本大学黒髪南キャンパス(熊本県熊本市)   Country:Japan  

  • ベータ遅延中性子測定のための中性子検出器の開発と性能評価

    #岸本侃己, 西畑洸希, @小田原厚子, #篠原悠介, #横田望海, @大上能弘, @N. Nurhafiza, @下田正, 市川雄一, 若狭智嗣, @北川淳志, @佐藤眞二

    第128回日本物理学会九州支部例会  2022.12 

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    Event date: 2022.12

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:熊本大学黒髪南キャンパス(熊本県熊本市)   Country:Japan  

  • 分散整合二回散乱法による<sup>99</sup>Zrアイソマー状態のスピン整列

    篠原悠介, 市川雄一, 郷慎太郎, 西畑洸希, 安藤蒼太, 荒殿和希, 旭耕一郎, 馬場秀忠, 福田直樹, G. Georgiev, A. Gladkov, 今村慧, 梶原孝文, 岸本侃己, R. Lozeva, 向井もも, 新倉潤. N. Nurhafiza, 小田原厚子, 清水陽平, M. Si, K. Stoychev, 鈴木宏, 立川柊平, 田島美典, 高峰愛子, 竹田浩之, 竹中京平, 武重祥子, 上野秀樹, 若狭智嗣, 山下渉, 山崎展樹, 横田望海, 吉本雅浩, J. M. Daugas

    第128回日本物理学会九州支部例会  2022.12 

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    Event date: 2022.12

    Language:Japanese  

    Venue:熊本大学黒髪南キャンパス(熊本県熊本市)   Country:Japan  

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  • EDM測定に向けた核スピンメーザーの開発

    安藤蒼太, 市川雄一, 佐藤智哉, 篠原悠介, 西畑洸希, 若狭智嗣, 岸本侃己, 山下渉, 横田望海, 立川柊平, 竹中京平, 梶原孝文, 荒殿和希, 郷慎太郎, 高峰愛子, 上野秀樹, 旭耕一郎

    第128回日本物理学会九州支部例会  2022.12 

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    Event date: 2022.12

    Language:Japanese  

    Venue:熊本大学黒髪南キャンパス(熊本県熊本市)   Country:Japan  

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  • ベータ遅延中性子測定のための中性子検出器の開発と性能評価

    岸本侃己, 西畑洸希, 小田原厚子, 篠原悠介, 横田望海, 大上能弘, N. Nurhafiza, 下田正, 市川雄一, 若狭智嗣, 北川淳志, 佐藤眞二

    第128回日本物理学会九州支部例会  2022.12 

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    Event date: 2022.12

    Language:Japanese  

    Venue:熊本大学黒髪南キャンパス(熊本県熊本市)   Country:Japan  

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  • Development of nuclear spin maser toward the EDM measurement International conference

    #S. Ando, Y. Ichikawa, @T. Sato, #Y. Shinohara, H. Nishibata, #S. Tachikawa, @S. Go, @A. Takamine, @H. Ueno, and @K. Asahi

    The 14th International Workshop on Fundamental Physics Using Atoms (FPUA2022)  2022.11 

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    Event date: 2022.11 - 2022.12

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  • Development of nuclear spin maser toward the EDM measurement International conference

    S. Ando, Y. Ichikawa, T. Sato, Y. Shinohara, H. Nishibata, S. Tachikawa, S. Go, A. Takamine, H. Ueno, and K. Asahi

    The 14th International Workshop on Fundamental Physics Using Atoms (FPUA2022)  2022.11 

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    Event date: 2022.11 - 2022.12

    Language:Japanese  

    Venue:Kyushu University, Fukuoka   Country:Japan  

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  • 分散整合二回散乱法による99Zrアイソマー状態のスピン整列

    #篠原悠介, 市川雄一, @郷慎太郎, 西畑洸希, #安藤蒼太, #荒殿和希, @旭耕一郎, @馬場秀忠, @福田直樹, @G. Georgiev, @A. Gladkov, @今村慧, #梶原孝文, #岸本侃己, @R. Lozeva, @向井もも,@新倉潤. @N. Nurhafiza, @小田原厚子, @清水陽平, @M. Si, @K. Stoychev, @鈴木宏, #立川柊平, @田島美典, @高峰愛子, @竹田浩之, @竹中京平, @武重祥子, @上野秀樹, 若狭智嗣, #山下渉, @山崎展樹, #横田望海, @吉本雅浩, @J. M. Daugas

    日本物理学会2022年秋季大会  2022.9 

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    Event date: 2022.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:岡山理科大学(岡山県岡山市)   Country:Japan  

  • EDM測定に向けたガラスセル中Xe原子のスピン緩和機構の評価II

    #安藤蒼太, 市川雄一, @佐藤智哉, #篠原悠介, 西畑洸希, 若狭智嗣, #岸本侃己, #山下渉, #横田望海, #立川柊平, #竹中京平, #梶原孝文, #荒殿和希, @郷慎太郎, @高峰愛子, @上野秀樹, @旭耕一郎

    日本物理学会2022年秋季大会  2022.9 

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    Event date: 2022.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:岡山理科大学(岡山県岡山市)   Country:Japan  

  • 分散整合二回散乱法による<sup>99</sup>Zrアイソマー状態のスピン整列

    篠原悠介, 市川雄一, 郷慎太郎, 西畑洸希, 安藤蒼太, 荒殿和希, 旭耕一郎, 馬場秀忠, 福田直樹, G. Georgiev, A. Gladkov, 今村慧, 梶原孝文, 岸本侃己, R. Lozeva, 向井もも, 新倉潤. N. Nurhafiza, 小田原厚子, 清水陽平, M. Si, K. Stoychev, 鈴木宏, 立川柊平, 田島美典, 高峰愛子, 竹田浩之, 竹中京平, 武重祥子, 上野秀樹, 若狭智嗣, 山下渉, 山崎展樹, 横田望海, 吉本雅浩, J. M. Daugas

    日本物理学会2022年秋季大会  2022.9 

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    Event date: 2022.9

    Language:Japanese  

    Venue:岡山理科大学(岡山県岡山市)   Country:Japan  

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  • EDM測定に向けたガラスセル中Xe原子のスピン緩和機構の評価II

    安藤蒼太, 市川雄一, 佐藤智哉, 篠原悠介, 西畑洸希, 若狭智嗣, 岸本侃己, 山下渉, 横田望海, 立川柊平, 竹中京平, 梶原孝文, 荒殿和希, 郷慎太郎, 高峰愛子, 上野秀樹, 旭耕一郎

    日本物理学会2022年秋季大会  2022.9 

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    Event date: 2022.9

    Language:Japanese  

    Venue:岡山理科大学(岡山県岡山市)   Country:Japan  

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  • EDM測定に向けたガラスセル中Xe原子のスピン緩和機構の評価

    #安藤蒼太, 市川雄⼀, @佐藤智哉, #篠原悠介, ⻄畑洸希, #岸本侃⼰, #⼭下渉, #横⽥望海, @郷慎太郎, @⾼峰愛⼦, @上野秀樹, @旭耕⼀郎

    日本物理学会第77回年次大会  2022.3 

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    Event date: 2022.3

    Language:Japanese  

    Venue:オンライン   Country:Japan  

  • EDM測定に向けたガラスセル中Xe原子のスピン緩和機構の評価

    安藤蒼太, 市川雄⼀, 佐藤智哉, 篠原悠介, ⻄畑洸希, 岸本侃⼰, ⼭下渉, 横⽥望海, 郷慎太郎, ⾼峰愛⼦, 上野秀樹, 旭耕⼀郎

    日本物理学会第77回年次大会  2022.3 

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    Event date: 2022.3

    Language:Japanese  

    Venue:オンライン   Country:Japan  

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MISC

  • 核スピンから探る原子核・素粒子・宇宙

    市川 雄一

    2022.1

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  • 核スピンから探る原子核・素粒子・宇宙

    市川 雄一

    2022.1

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    Language:Japanese   Publisher:原子核研究  

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  • 低エネルギースピン物理 ―スピン核分光実験― Reviewed

    市川 雄一

    2021.8

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  • 変形しながら殻進化 ―磁気モーメントで探るエキゾチック核の「中身」― Reviewed

    市川 雄一

    2019.10

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    Language:Japanese  

  • スピン操作したRIビームの生成 Reviewed

    市川 雄一

    2014.9

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    Language:Japanese  

  • 多種多様なRIビームのスピンを操る Reviewed

    市川 雄一

    2013.12

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    Language:Japanese  

  • 陽子過剰核の24Siのベータ崩壊とその鏡映対称性 Reviewed

    市川 雄一

    2010.9

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    Language:Japanese  

  • Correction to: Nuclear-moment measurement using highly spin-aligned RI beams: Recent activities at RIBF (Interactions, (2024), 245, 1, (26), 10.1007/s10751-024-01869-2)

    Ichikawa Y., Shinohara Y., Go S., Nishibata H., Ando S., Asahi K., Baba H., Fukuda N., Georgiev G., Gladkov A., Imamura K., Kishimoto K., Lozeva R., Mukai M., Niikura M., Nor N.M., Odahara A., Shimizu Y., Si M., Stoychev K., Suzuki H., Tajima M., Takamine A., Takeda H., Takeshige S., Tanaka M., Togano Y., Ueno H., Wakasa T., Yamashita W., Yamazaki H., Yoshimoto M., Daugas J.M.

    Interactions   245 ( 1 )   2024.12

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    Publisher:Interactions  

    The original version of this article unfortunately contained mistakes. The corrections are given in the following list: (1) The author name ‘A. Gladkov’ was incorrectly written as ‘A. Gradkov’. (2) The ‘Availability of data and materials’ statement was incorrectly given as ‘No datasets were generated or analysed during the current study’ but should have been ‘The data that support the findings of this study are available from the corresponding author upon reasonable request’. The original article has been corrected.

    DOI: 10.1007/s10751-024-01894-1

    Scopus

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Professional Memberships

  • 日本物理学会

  • 日本物理学会

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Academic Activities

  • Organizing committee, Local organizing committess International contribution

    The 15th International Workshop of Fundamental Physics Using Atoms (FPUA2024)  ( Okayama, Okayama Japan ) 2024.3

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    Type:Competition, symposium, etc. 

  • The 15th International Workshop of Fundamental Physics Using Atoms (FPUA2024) International contribution

    ( Okayama, Okayama Japan ) 2024.3

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  • 研究会組織委員

    核談創立70周年記念シンポジウム 〜原子核物理学の昨日・今日・明日~  ( 東京工業大学大岡山キャンパス(東京都目黒区) ) 2024.3

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    Type:Competition, symposium, etc. 

  • 核談創立70周年記念シンポジウム 〜原子核物理学の昨日・今日・明日~

    ( 東京工業大学大岡山キャンパス(東京都目黒区) Japan ) 2024.3

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    Type:Competition, symposium, etc. 

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  • Organizing committee International contribution

    The International Workshop on Atomic Parity Violation (APV2022)  ( Online Japan ) 2023.11

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    Type:Competition, symposium, etc. 

  • The International Workshop on Atomic Parity Violation (APV2022) International contribution

    ( Online Japan ) 2023.11

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    Type:Competition, symposium, etc. 

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  • 第12回 停止・低速不安定核ビームを用いた核分光研究会

    ( 立教大学(東京都豊島区) Japan ) 2023.9

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    Type:Competition, symposium, etc. 

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  • 研究会組織委員

    第12回 停止・低速不安定核ビームを用いた核分光研究会  ( 立教大学(東京都豊島区) ) 2023.9

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    Type:Competition, symposium, etc. 

  • 第4回若手放談会:エキゾチック核物理の将来

    ( 理研神戸キャンパス(兵庫県神戸市) Japan ) 2023.3

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  • 研究会組織委員

    第4回若手放談会:エキゾチック核物理の将来  ( 理研神戸キャンパス(兵庫県神戸市) ) 2023.3

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    Type:Competition, symposium, etc. 

  • Organizing committee, Local organizing committess International contribution

    The 14th International Workshop of Fundamental Physics Using Atoms (FPUA2022)  ( Fukuoka, Fukuoka Japan ) 2022.11

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    Type:Competition, symposium, etc. 

  • The 14th International Workshop of Fundamental Physics Using Atoms (FPUA2022) International contribution

    ( Fukuoka, Fukuoka Japan ) 2022.11

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    Type:Competition, symposium, etc. 

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  • Organizing committee, Chair International contribution

    RIBF Users Meeting 2022  ( Online Japan ) 2022.9

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    Type:Competition, symposium, etc. 

  • RIBF Users Meeting 2022 International contribution

    ( Online Japan ) 2022.9

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    Type:Competition, symposium, etc. 

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  • Organizing committee, Chair International contribution

    RIBF Users Meeting 2023  ( Wako, Saitama Japan ) 2022.9

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    Type:Competition, symposium, etc. 

  • RIBF Users Meeting 2023 International contribution

    ( Wako, Saitama Japan ) 2022.9

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    Type:Competition, symposium, etc. 

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  • 理化学研究所の加速器施設RIビームファクトリー(RIBF)のUEC (User Executive Committee; ユーザー代表委員会) の議長(Chair)として、利用者の研究環境整備・相互連絡促進のための議論や、ワークショップの運営、論文賞の選考、HPの運営などの取りまとめ

    RIBF Users Group  2022.4 - 2024.3

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  • Local Organizing Committee & Program Committee International contribution

    SPIN2021  ( Matsue, Shimane Japan ) 2021.10

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    Type:Competition, symposium, etc. 

  • 理化学研究所の加速器施設RIビームファクトリー(RIBF)のUEC (User Executive Committee; ユーザー代表委員会) 委員として、利用者の研究環境整備・相互連絡促進のための議論や、ワークショップの運営、論文賞の選考、HPの運営などを遂行

    RIBF Users Group  2021.4 - 2025.3

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  • 研究会組織委員

    日本のスピン物理学の展望  ( 松江 & オンライン ) 2021.2

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    Type:Competition, symposium, etc. 

  • 研究会組織委員

    第3回若手放談会:エキゾチック核物理の将来  ( 理研神戸キャンパス(兵庫県神戸市) ) 2020.2

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    Type:Competition, symposium, etc. 

  • 研究会組織委員

    第11回 停止・低速不安定核ビームを用いた核分光研究会  ( 京都大学複合原子力科学研究所(大阪府泉南郡熊取町) ) 2020.1

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    Type:Competition, symposium, etc. 

  • Local Organizing Committee International contribution

    The 12th International Workshop on Fundamental Physics Using Atoms (FPUA 2020)  ( Wako, Saitama Japan ) 2020.1

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    Type:Competition, symposium, etc. 

  • 研究会組織委員

    第10回 停止・低速不安定核ビームを用いた核分光研究会  ( 九州大学(福岡県福岡市) ) 2019.3

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    Type:Competition, symposium, etc. 

  • Organizing Committee of “Mini-symposium on Fundamental Symmetries (Many-body Sysmtems)” International contribution

    2018.10

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    Type:Competition, symposium, etc. 

  • Organizing Committee International contribution

    The 10th International Workshop on Fundamental Physics Using Atoms (FPUA 2018)  ( Nagoya, Aichi Japan ) 2018.1

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    Type:Competition, symposium, etc. 

  • Organizing Committee International contribution

    International symposium on RI beam physics in the 21st century: 10th anniversary of RIBF  ( Wako, Saitama Japan ) 2017.12

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    Type:Competition, symposium, etc. 

  • JENDL(Japanese Evaluated Nuclear Data Library)委員として、核データ編集に参加

    JENDL委員会  2017.11

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  • 研究会組織委員

    第9回 停止・低速RIビームを用いた核分光研究会  ( 原子力機構・先端基礎研究センター(茨城県東海村) ) 2017.3

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    Type:Competition, symposium, etc. 

  • Organizing Committee International contribution

    The 9th International Workshop on Fundamental Physics Using Atoms (FPUA 2017)  ( Kyoto, Kyoto Japan ) 2017.1

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    Type:Competition, symposium, etc. 

  • Local Organizing Committee International contribution

    14th RIBF Discussion - Charge Radii studies through laser spectroscopy  ( Wako, Saitama Japan ) 2016.3

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    Type:Competition, symposium, etc. 

  • 研究会組織委員

    第8回 停止・低速不安定核ビームを用いた核分光研究会  ( 理研(埼玉県和光市) ) 2016.3

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    Type:Competition, symposium, etc. 

  • Scientific Secretary International contribution

    Physics with Fragment Separators - 25th Anniversary of RIKEN Projectile Fragment Separator (RIPS25)  ( Hayama, Kanagawa Japan ) 2015.12 - 2012.12

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    Type:Competition, symposium, etc. 

  • Local Organizing Committee International contribution

    Fundamental Physics Using Atoms 2015 (FPUA2015) -Toward better understanding of our matter universe-  ( Wako, Saitama Japan ) 2015.11 - 2015.12

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    Type:Competition, symposium, etc. 

  • 「日本の核物理の将来」不安定核分野ワーキンググループ委員として実験核物理の将来計画の議論に参画

    原子核談話会  2015.10

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  • Scientific Secretary International contribution

    The sixth international conference on Trapped Charged Particles and Fundamental Physics (TCP2014)  ( Takamatsu, Kagawa Japan ) 2014.12

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    Type:Competition, symposium, etc. 

  • 研究会組織委員

    第7回 停止・低速不安定核ビームを用いた核分光研究会  ( 理研(埼玉県和光市) ) 2014.3

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    Type:Competition, symposium, etc. 

  • TCP2014 (Proceedings of the 6th International Conference on Trapped Charged Particles and Fundamental Physics, held in Takamatsu, Japan, 1-5, December 2014) International contribution

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    Type:Academic society, research group, etc. 

  • TCP2014 (Proceedings of the 6th International Conference on Trapped Charged Particles and Fundamental Physics, held in Takamatsu, Japan, 1-5, December 2014) International contribution

    Role(s): Review, evaluation

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    Type:Peer review 

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Other

  • 理化学研究所プレスリリース 「ジルコニウム同位体は励起状態でも突然変形する -99Zr の励起状態の核磁気モーメント測定から明らかに-」 https://www.riken.jp/press/2020/20200317_2/index.html

    2020.3

  • 理化学研究所プレスリリース 「ジルコニウム同位体は励起状態でも突然変形する -99Zr の励起状態の核磁気モーメント測定から明らかに-」 https://www.riken.jp/press/2020/20200317_2/index.html

    2020.3

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  • 理化学研究所、東京大学プレスリリース 「磁気モーメントから分かる銅同位体の新たな姿 -極限までスピン整列度を高めたRI ビームを駆使して測定に成功-」 https://www.riken.jp/press/2019/20190130_2/

    2019.1

  • 理化学研究所、東京大学プレスリリース 「磁気モーメントから分かる銅同位体の新たな姿 -極限までスピン整列度を高めたRI ビームを駆使して測定に成功-」 https://www.riken.jp/press/2019/20190130_2/

    2019.1

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  • 理化学研究所、東京工業大学プレスリリース 「多種多様なRIビームのスピンを操作する新手法を開発 -2段階のRI 生成反応であらゆるRIビームに対してのスピン操作と大強度化を実現-」 https://www.riken.jp/press/2012/20121022/

    2012.10

  • 理化学研究所、東京工業大学プレスリリース 「多種多様なRIビームのスピンを操作する新手法を開発 -2段階のRI 生成反応であらゆるRIビームに対してのスピン操作と大強度化を実現-」 https://www.riken.jp/press/2012/20121022/

    2012.10

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Research Projects

  • Search for static and dynamic electric dipole moments using nuclear spin maser

    Grant number:24H00229  2024 - 2028

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (A)

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    Authorship:Principal investigator  Grant type:Scientific research funding

    CiNii Research

  • 放射線検出による核スピン歳差運動の精密測定 -不安定核原子EDM測定にむけて-

    2021

    わかばチャレンジ

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    Authorship:Principal investigator  Grant type:On-campus funds, funds, etc.

  • Expanded research of exotic nuclear structure using spin-aligned RI beams

    Grant number:20H01923  2020 - 2023

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (B)

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    Authorship:Principal investigator  Grant type:Scientific research funding

    CiNii Research

  • Xe原子EDM測定に向けた電極素材表面における131Xeスピン緩和機構の解明

    Grant number:20K20928  2020 - 2022

    日本学術振興会  科学研究費助成事業  挑戦的研究(萌芽)

    市川 雄一

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    Authorship:Principal investigator  Grant type:Scientific research funding

    本研究では、標準理論を超える新現象である電気双極子モーメント(EDM)の探索に向け、Xe原子の電極素材におけるスピン緩和機構の解明を行う。129Xeと131Xeの異核種同位体を用いた歳差周波数精密測定法を確立するため、様々な電極素材表面での131Xeスピンの縦緩和時間および横緩和時間を測定して、その偏極緩和機構を理解し、高い131Xe偏極度および長い131Xeスピン緩和時間の実現を狙う。

    CiNii Research

  • 重イオンを用いた新奇光子ビーム生成機構の検証実験

    Grant number:16H02136  2016 - 2019

    日本学術振興会  科学研究費助成事業  基盤研究(A)

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    Authorship:Coinvestigator(s)  Grant type:Scientific research funding

  • Cu同位体の励起状態核磁気モーメント測定による中性子過剰核の核構造研究

    Grant number:16K05390  2016 - 2019

    日本学術振興会  科学研究費助成事業  基盤研究(C)

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    Authorship:Principal investigator  Grant type:Scientific research funding

  • 能動核スピンメーザー法を用いた原子EDMと核シッフモーメントの研究

    Grant number:26247036  2014 - 2016

    日本学術振興会  科学研究費助成事業  基盤研究(A)

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    Authorship:Coinvestigator(s)  Grant type:Scientific research funding

  • 核スピンメーザーを用いた129Xe原子EDM探索実験 International coauthorship

    2012.1 - 2016.3

    東京工業大学 

  • 中性子数28近傍核の核電磁モーメント測定

    Grant number:22340071  2010 - 2013

    日本学術振興会  科学研究費助成事業  基盤研究(B)

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    Authorship:Collaborating Investigator(s) (not designated on Grant-in-Aid)  Grant type:Scientific research funding

  • Mg同位体の励起状態の磁気モーメント測定による核構造研究

    Grant number:21740210  2009 - 2011

    科学研究費助成事業  若手研究(A,B)

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    Authorship:Principal investigator  Grant type:Scientific research funding

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Class subject

  • 基礎物理実験学・同実験B

    2024.12 - 2025.2   Winter quarter

  • 熱力学基礎

    2024.12 - 2025.2   Winter quarter

  • 基礎物理実験学・同実験(R2以前入学者用)

    2024.10 - 2025.3   Second semester

  • 基礎物理実験学・同実験A

    2024.10 - 2024.12   Fall quarter

  • 身の回りの物理学B

    2024.10 - 2024.12   Fall quarter

  • 電磁気学基礎

    2024.10 - 2024.12   Fall quarter

  • 最先端物理学

    2024.4 - 2024.9   First semester

  • 基礎物理実験学・同実験B

    2023.12 - 2024.2   Winter quarter

  • 熱力学基礎

    2023.12 - 2024.2   Winter quarter

  • 基礎物理実験学・同実験(R2以前入学者用)

    2023.10 - 2024.3   Second semester

  • 基礎物理実験学・同実験A

    2023.10 - 2023.12   Fall quarter

  • 身の回りの物理学B

    2023.10 - 2023.12   Fall quarter

  • 電磁気学基礎

    2023.10 - 2023.12   Fall quarter

  • Experimental Nuclear Physics

    2023.4 - 2023.9   First semester

  • 実験核物理学

    2023.4 - 2023.9   First semester

  • 基礎物理実験学・同実験B

    2022.12 - 2023.2   Winter quarter

  • 熱力学基礎

    2022.12 - 2023.2   Winter quarter

  • 基礎物理実験学・同実験A

    2022.10 - 2022.12   Fall quarter

  • 電磁気学基礎

    2022.10 - 2022.12   Fall quarter

  • 物理学総合実験

    2022.4 - 2022.9   First semester

  • 最先端物理学

    2022.4 - 2022.9   First semester

  • 身の回りの物理学B

    2022.4 - 2022.6   Spring quarter

  • 熱力学基礎

    2021.12 - 2022.2   Winter quarter

  • 物理学総合実験

    2021.10 - 2022.3   Second semester

  • 基礎物理実験学・同実験

    2021.10 - 2022.3   Second semester

  • 身の回りの物理学B

    2021.10 - 2021.12   Fall quarter

  • 電磁気学基礎

    2021.10 - 2021.12   Fall quarter

  • 物理学特別講義22

    2021.4 - 2021.9   First semester

  • 身の回りの物理学B

    2021.4 - 2021.6   Spring quarter

  • 基礎物理実験学・同実験

    2020.10 - 2021.3   Second semester

  • 基幹物理学ⅠB

    2020.10 - 2021.3   Second semester

  • 最先端物理学

    2020.4 - 2020.9   First semester

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FD Participation

  • 2023.3   Role:Participation   Title:【物理学科FD】物理数学の教育と効果的な演習に向けて

    Organizer:Undergraduate school department

  • 2021.4   Role:Participation   Title:令和3年度 第1回全学FD(新任教員の研修)

    Organizer:University-wide

  • 2021.3   Role:Participation   Title:【物理学FD】ハイブリッド講義の実践例と講義活性化

    Organizer:[Undergraduate school/graduate school/graduate faculty]

  • 2020.9   Role:Other   Title:M2B学習支援システム講習会(オンライン開催)◇初級編・中級編◇10:00~12:00

    Organizer:University-wide

Visiting, concurrent, or part-time lecturers at other universities, institutions, etc.

  • 2019  立教大学 理学部  Classification:Part-time faculty  Domestic/International Classification:Japan 

  • 2018  立教大学 理学部  Classification:Part-time faculty  Domestic/International Classification:Japan 

  • 2017  立教大学 理学部・大学院理学研究科  Classification:Part-time faculty  Domestic/International Classification:Japan 

Other educational activity and Special note

  • 2024  Class Teacher 

  • 2023  Class Teacher 

  • 2022  Class Teacher 

Social Activities

  • 体験入学

    九州大学理学部物理学科  2021.3

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    Audience: Infants, Schoolchildren, Junior students, High school students

    Type:Seminar, workshop

  • 体験入学

    九州大学理学部物理学科  2021.3

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    Type:Seminar, workshop

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  • 加速器施設(RI Beam Factory)見学対応(随時)

    理化学研究所 仁科加速器科学研究センター  2020.1

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    Audience: General, Scientific, Company, Civic organization, Governmental agency

    Type:Other

  • 加速器施設(RI Beam Factory)見学対応(随時)

    理化学研究所 仁科加速器科学研究センター  2020.1

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    Type:Other

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  • 理化学研究所 一般公開(毎年4月)

    理化学研究所  2019.4

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    Audience: General, Scientific, Company, Civic organization, Governmental agency

    Type:Other

  • 理化学研究所 一般公開(毎年4月)

    理化学研究所  2019.4

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    Type:Other

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  • RIKEN和光サイエンス合宿2017

    理化学研究所  2017.7

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    Audience: General, Scientific, Company, Civic organization, Governmental agency

    Type:Lecture

  • RIKEN和光サイエンス合宿2017

    理化学研究所  2017.7

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    Type:Visiting lecture

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  • 東京工業大学オープンキャンパス

    東京工業大学  2012.7

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    Audience: General, Scientific, Company, Civic organization, Governmental agency

    Type:Other

  • 東京工業大学オープンキャンパス

    東京工業大学  2012.7

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    Type:Other

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Media Coverage

  • 中性子過剰ジルコニウム同位体の励起状態での変形 Newspaper, magazine

    フジサンケイビジネスアイ  2020.5

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    中性子過剰ジルコニウム同位体の励起状態での変形

  • 変形しながら殻進化 銅同位体の新たな姿 磁気モーメント測定で判明 Newspaper, magazine

    科学新聞  2019.2

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    変形しながら殻進化 銅同位体の新たな姿 磁気モーメント測定で判明

  • 理研と東⼤など、中性⼦過剰な銅同位体原⼦核の励起状態の磁気モーメント測定に成功 Newspaper, magazine

    日本経済新聞  2019.1

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    理研と東⼤など、中性⼦過剰な銅同位体原⼦核の励起状態の磁気モーメント測定に成功

  • 多種多様なRIビームスピン 方向そろえる新手法開発 Newspaper, magazine

    科学新聞  2012.10

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    多種多様なRIビームスピン 方向そろえる新手法開発

  • 放射線同位元素ビーム スピン操作一定方向 Newspaper, magazine

    日刊工業新聞  2012.10

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    放射線同位元素ビーム スピン操作一定方向

  • 解析精度10兆倍 物質の構造、特殊ビームで (※原文ママ) Newspaper, magazine

    日経産業新聞  2012.10

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    解析精度10兆倍 物質の構造、特殊ビームで (※原文ママ)

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Activities contributing to policy formation, academic promotion, etc.

  • 2022.4 - 2024.3   RIBF Users Group

    理化学研究所の加速器施設RIビームファクトリー(RIBF)のUEC (User Executive Committee; ユーザー代表委員会) の議長(Chair)として、利用者の研究環境整備・相互連絡促進のための議論や、ワークショップの運営、論文賞の選考、HPの運営などの取りまとめ

  • 2021.4 - 2025.3   RIBF Users Group

    理化学研究所の加速器施設RIビームファクトリー(RIBF)のUEC (User Executive Committee; ユーザー代表委員会) 委員として、利用者の研究環境整備・相互連絡促進のための議論や、ワークショップの運営、論文賞の選考、HPの運営などを遂行

  • 2017.11 - Present   JENDL委員会

    JENDL(Japanese Evaluated Nuclear Data Library)委員として、核データ編集に参加

  • 2015.10 - Present   原子核談話会

    「日本の核物理の将来」不安定核分野ワーキンググループ委員として実験核物理の将来計画の議論に参画