九州大学-研究者情報 [魚住裕介 (准教授) 工学研究院エネルギー量子工学部門]

1.	Vladimir Kalinnikov, Elena Velicheva, Yusuke Uozumi, Comparison of the Scintillation Properties of Long LYSO:Ce Crystals from Different Manufacturers, Physics of Particles and Nuclei Letters, 10.1134/S1547477121040105, 18, 4, 457-468, 2021.05, Cerium-doped lutetium yttrium oxyorthosilicate (LYSO:Ce) crystals are known to have considerable variation in scintillation light yield. Thus, the use of long LYSO:Ce crystals in energy measurements requires improved uniformity to realize high resolution. As it is known that differences in crystal characteristics can originate from differences in manufacturing techniques using the Czochralski method, it is useful to measure and compare the non-uniformity of LYSO:Ce crystals from different manufacturers. Comprehensive comparison of such crystals can be achieved using two methods, namely, gamma spectroscopy and optical spectroscopy. In this study, we examined two long crystals obtained from Saint-Gobain (France) and JT Technology Co. Ltd. (China). The Saint-Gobain crystal was found to have a more uniform distribution of scintillation properties and to contain fewer optical traps and crystal structure defects..
2.	Masahiro Nakano, Yuji Yamaguchi, Yusuke Uozumi, New empirical formula for nucleon-induced nonelastic cross sections based on two physical effects, Physical Review C, https://doi.org/10.1103/PhysRevC.103.044608, 103, 044608, 2021.04, A simple universal parametrization of nucleon-induced nonelastic cross sections is presented for a wide range of targets that is valid for the entire energy range from zero to a few gigaelectronvolts. We review several early studies by Letaw et al., Pearlstein, Shen, Niita et al., and Tripathi et al., and our proposed approach differs completely from the formulas therein. The present formula is constructed based on recently discovered physical effects involving Coulomb repulsion and the discrete-level constraint and is based on the assumption that cross sections are continuous in both incident energies and targets. Our formula is given by a set of smooth functions of the mass number, which differs from the best formula to date by Tripathi et al. To compare our formula precisely with that by Tripathi et al., we proposed the relative error index, which indicates the relative error between experimental data and predicted values. For the 12C, 27Al, 56Fe, natAg, natCd, natSn, 197Au, and 208Pb targets used in this paper, the corresponding relative error indices show clearly that our formula is superior to that by Tripathi et al..
3.	Y. Yamaguchi, G. Watanabe, T.Ageishi, T.Katayama, T. Ogawa, Y. Uozumi, Development of INC-ELF version 2 and incorporation into PHITS: Extension to lower incident energies down to 30 MeV, Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, https://doi.org/10.1016/j.nimb.2020.07.012, 479, 15, 233-239, 2020.07, Version 2 of the Intranuclear Cascade with Emission of Light Fragments (INC-ELF) code is developed and incorporated into the Particle and Heavy Ion Transport code System (PHITS). The aim of INC-ELF2 is to expand it to the lower incident-energy range of 30–200 MeV, where the original INC theory is not applicable. The refinement of the code is based faithfully on the results of basic research on direct reactions within the framework of the INC model. INC-ELF2 can deal with the emission of light fragments from nuclear reactions induced by protons and neutrons. Double-differential cross-sections are calculated by a two-step model combining INC-ELF2 and GEM (generalized evaporation model) in PHITS, and they are compared with experimental data to examine the predictive ability. Excellent agreement is confirmed for various reactions over a wide range of target masses and over the incident-energy range of 30–200 MeV..
4.	Yusuke Uozumi, Yuki Fukuda, Yuji Yamaguchi, Gaku Watanabe, Masahiro Nakano , Direct pickup and knockout processes in inclusive (p,αx) reactions from 42 to 300 MeV, Physical Review C, https://doi.org/10.1103/PhysRevC.102.014604, 102, 014604, 2020.07, Inclusive (p,αx) reactions from 42 to 300 MeV are investigated to quantitatively understand the roles of direct pickup and knockout processes. These two processes as well as indirect pickup are incorporated into the intranuclear cascade model. Calculations followed by the evaporation model successfully explain the double-differential cross-section spectra in terms of both shape and magnitude. Direct pickup occupies the low excitation energies of the spectra, and knockout appears between the direct pickup and evaporation regions. The contribution of knockout is negligible below 100 MeV, increases to be comparable with that of direct pickup at 160 MeV, and is dominant above 200 MeV. Indirect pickup shows an important contribution at 300 MeV. The direct pickup and knockout processes show decreasing trends of incident-energy dependence, common to targets ranging from 12C to 209Bi. However, the decrease of direct pickup is much faster than that for knockout..
5.	Masahiro Nakano, Yuji Yamaguchi, Yusuke Uozumi, Two effects in nucleon-induced nonelastic cross sections based on the intranuclear cascade model, Physical Review C, https://doi.org/10.1103/PhysRevC.102.024608, 102, 024608, 2020.08, Proton- and neutron-induced nonelastic cross sections for 12C, 27Al, 56Fe and 208Pb are investigated in the low energy region from 100MeV down to nearly zero MeV based on a framework of the intranuclear cascade (INC) model. It is shown that the INC model can reproduce the experimental data both for the proton- and neutron-induced nonelastic cross sections of a wide range of targets in a systematic way, and that the crucial point is to include the transition probability of the excited particles originated from the discrete level constraint (DLC). On the basis of the reliability of INC calculation, we analyze the two effects of the discrete level constraint and Coulomb repulsion separately in the proton and for neutron injection cases, and we elucidate the domain of the target mass and the kinetic energy where two effects play important roles..
6.	Masahiro Nakano, Yuji Yamaguchi, Yusuke Uozumi, Scale breaking in the low-energy proton-induced nonelastic cross sections, Physical Review C, https://doi.org/10.1103/PhysRevC.101.044616, 101, 044616, 1-7, 2020.04, Proton-induced nonelastic cross sections for 12C, 27Al, 56Fe, and 208Pb are investigated in a low-energy region below 100 MeV down to nearly 0 MeV based on a framework of an intranuclear cascade (INC) model. We point out that there is a scaling among the calculations including the Coulomb repulsion; two cases are shown: One is the scaling of the trajectories with different impact parameters, and the other is the incident-energy dependence of the cross sections. We point out for the first time that the calculated cross sections by the usual INC model follow a scaling and the discrepancy between the calculated cross sections and the experimental data indicates the scale breaking and that, for the explanation of the scale breaking, it is essential to include the discrete level constraints in addition to the Coulomb repulsion in the INC model..
7.	Yuji Yamaguchi, Yusuke Uozumi, Masahiro Nakano, Barrier transmission for proton emission during the intranuclear cascade process, Physical Review C, https://doi.org/10.1103/PhysRevC.100.034600, 100, 034600-1-034600-7, 2019.09, A method is proposed for determining the barrier transmission coefficient for the outgoing protons from the intranuclear cascade process in (p,p′x) reactions. In this method, the coefficient is defined as the ratio of the cross section of the proton-nucleus reaction to that of the neutron-nucleus reaction and is calculated by using empirical equations for the cross sections with no free parameters. The determined coefficient is incorporated into an intranuclear cascade model followed by an evaporation model, and the double-differential cross sections are calculated for (p,p′x) reactions around 50 MeV on heavy targets with A≥120. The present results agree well with experimental observations. Remarkably, the spectra for 209Bi and 197Au are accounted for even though the evaporation contributions are negligibly small..
8.	Masahiro Nakano, Yusuke Uozumi, Extension of the intranuclear cascade model to neutron-induced nonelastic cross sections in the low-energy region, Physical Review C, https://doi.org/10.1103/PhysRevC.100.034619, 100, 034619-1-034619-7, 2019.09.
9.	魚住裕介, 山口雄司, 藤井基晴, 吉田和人, 今村亮太, 福田雄基, 渡邊岳, 松藤成弘, 古場裕介, 岩元洋介, 重イオン治療に伴うフラグメント生成反応断面積の測定, バイオメディカル・ファジィ・システム学会誌, 20, 2, 9-14, 2018.09.
10.	Yusuke Uozumi, Yuji Yamaguchi, Gaku Watanabe, Yuki Fukuda, Ryota Imamura, Monira Jannatul Kobra, Masahiro Nakano, Direct pickup and knockout processes in inclusive (p,dx) reactions at 42–392 MeV, Physical Review C, https://doi.org/10.1103/PhysRevC.97.034630, 97, 034630-1-034630-7, 2018.03.
11.	Yusuke Uozumi, Takahiro Yamada, Masahiro Nakano, Intranuclear cascade model for 50-MeV-region (p,p'x) reactions over a wide target mass range, Journal of Nuclear Science and Technology, http://dx.doi.org/10.1080/00223131.2014.945505, 52, 2, 263-272, 2015.02.
12.	Y. Sawada, Y. Uozumi, S. Nogamine, T. Yamada, Y. Iwamoto, T. Sato, K. Niita, Intranuclear Cascade with Emission of Light Fragment Code Implemented in the Transport Code System PHITS, Nucl. Instr. Meth. B , 291, 38-44, 2012.11.
13.	Yusuke Uozumi, Takahiro Yamada, Sho Nogamine, Masahiro Nakano, Intranuclear cascade model including collective excitations and trajectory deflections for (p,p'x) reactions around 50 MeV, Physical Review C , 86, 034610, 1-7, 2012.09.
14.	Y. Uozumi, Y. Sawada, A. Mzhavia, S. Nogamine, H. Iwamoto, T. Kin, S. Hohara, G. Wakabayashi, M. Nakano, Deuteron-production Double-differential Cross Sections for 300- and 392-MeV Proton-induced Reactions Deduced from Experiment and Model Calculation, Physical Review C , 84, 064617 [11 pages], 2011.12.
15.	H. Iwamoto, M. Imamura, Y. Koba, Y. Fukui, G. Wakabayashi, Y. Uozumi, T. Kin, Y. Iwamoto, S. Hohara, M. Nakano, Proton-production Double-differential Cross Sections for 300-MeV and 392-MeV Proton-induced Reactions, Physical Review C, 82, 034604, 2010.09.
16.	H. Iwamoto, Y. Uozumi, M. Nakano, Light charged particle productions in proton-nucleus reactions, International Conference on Soft Computing and Human Sciences, pp.145-152, 2007.07.
17.	Y. Uozumi, Y. Fukui, H. Iwamoto, M. Nakano, Stochastic approach to proton nucleus elastic scattering, International Conference on Soft Computing and Human Science, pp. 139-144, 2007.07.
18.	Y. Uozumi, P. Evtoukhovitch, H. Fukuda, M. Imamura, H. Iwamoto, V. Kalinikov, W. Kallies, N. Khumutov, T. Kin, N. Koba, Y. Koba, N. Kuchinski, A. Moisenko, D. Mzavia, M. Nakano, V. Samoilov, Z. Tsamalaidze, G. Wakabayashi and Y. Yamashita, Magnitude factor systematics of Kalbach phenomenology for reactions emitting helium and lithium ions , Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Volume 571, Issue 3, 11 February 2007, Pages 743-747, Volume 571, Issue 3, 2007.02.
19.	M. Imamura, Y. Yamashita, P. Evtoukhovitch, S. Hohara, V. Kalinikov, W. Kallies, N. Khumutov, T. Kin, N. Kuchinski, D. Maki, N. Matsufuji, A. Moisenko, D. Mzavia, V. Samoilov, Z. Tsamalaidze, Y. Uozumi, G. Wakabayashi, Response characteristics of GSO(Ce) crystal to intermediate-energy α-particles, Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Volume 564, Issue 1, 1 August 2006, Pages 324-327, 2006.08.
20.	岩元大樹、金政浩、魚住裕介、中野正博, 反対称化分子動力学における波束ダイナミクスに関する研究, バイオメディカル・ファジィ・システム学会誌, 第７巻１号、pp.6-11, 2005.10.
21.	T. Kin, F. Saiho, S. Hohara, K. Ikeda, K. Ichikawa, Y. Yamashita, M. Imamura, G. Wakabayashi, N. Ikeda, Y. Uozumi, M. Matoba, M. Nakano and N. Koori, Proton production cross sections for reactions by 300- and 392-MeV protons on carbon, aluminum, and niobium, Physical Revew C, 10.1103/PhysRevC.72.014606, 72, 1, Vol.72, 014606 1-9, 2005.08.
22.	F. Saiho, T. Kin, S. Hohara, G. Wakabayashi, N. Ikeda, Y. Uozumi, M.Imamura, Y. Yamashita, M. Matoba, N. Koori, Response and Efficiency of Stacked GSO(Ce) Spectrometer to Intermediate-energy Deuterons, Nuclear Instruments and Measurements Physics Research A, 10.1016/j.nima.2004.07.292, 537, 3, 594-599, Vol. 537, No. 3, pp.594-599, 2005.02.

主要総説, 論評, 解説, 書評, 報告書等

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主要学会発表等

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学会活動

所属学会名

バイオメディカルファジーシステム学会

日本物理学会

日本原子力学会

学協会役員等への就任

2021.04～2023.03, バイオメディカル・ファジィ・システム学会, 理事.

2019.04～2021.03, バイオメディカル・ファジィ・システム学会, 理事.

2017.04～2019.03, バイオメディカル・ファジィ・システム学会, 理事.

2012.11～2015.11, バイオメディカル・ファジィ・システム学会, 評議員.

2015.11～2017.03, バイオメディカル・ファジィ・システム学会, 理事.

2012.11～2014.11, バイオメディカル・ファジィ・システム学会, 評議員.

2013.12～2019.03, バイオメディカル・ファジィ・システム学会, 編集委員副委員長.

2013.12～2013.12, バイオメディカル・ファジィ・システム学会, 編集委員.

2012.06～2014.05, 日本原子力学会, 編集委員.

2011.04～2013.04, バイオメディカル・ファジィ・システム学会, 評議員.

2009.11～2011.10, バイオメディカル・ファジィ・システム学会, 日本語セッションプログラム編成委員長・選挙管理委員長.

2006.05～2009.04, 日本原子力学会, 幹事.

学会大会・会議・シンポジウム等における役割

2020.09.07～2020.09.09, 原子力学会　秋の大会, 現地委員.

2019.11.23～2019.11.24, BMFSA2019, 渉外委員長、プログラム委員.

2015.06.15～2015.06.18, The 4th International Conference on Informatics, Electronics & Vision, 座長（Chairmanship）.

2014.11.15～2014.11.16, BMFSA2014, 座長（Chairmanship）.

2011.12.22～2011.12.24, Sixth International Conference on Innovative Computing, Information and Control (ICICIC2011), 座長（Chairmanship）.

2010.04.26～2010.04.30, International Conference on Nuclear Data for Science and Technology (ND2010), 座長（Chairmanship）.

2016.09.07～2016.09.09, 原子力学会　秋の大会, 現地委員.

2011.09.18～2011.09.20, 原子力学会　秋の大会, 現地委員.

2010.10.09～2010.10.10, BMFSA2010, 日本語プログラム委員長.

学会誌・雑誌・著書の編集への参加状況

2021.04～2024.03, バイオメディカルファジィシステム学会誌, 国内, 編集委員.

2012.05～2021.03, バイオメディカルファジィシステム学会誌, 国内, 編集委員.

2012.07～2015.06, Journal of Nuclear Science and Technology, 国際, 編集委員.

2012.05～2017.05, バイオメディカルファジィシステム学会誌, 国内, 編集委員.

学術論文等の審査

年度	外国語雑誌査読論文数	日本語雑誌査読論文数	国際会議録査読論文数	国内会議録査読論文数	合計
2021年度	2	3	0	0	5
2020年度	1	3	0	0	4
2019年度	1	5	1	0	7
2018年度	2	3	0	0	5
2017年度	1	7	0	0	8
2016年度	2	9	0	0	11
2015年度	1	7	3	0	11
2014年度	12	0	0	3	15
2013年度	7	3	2	0	12
2012年度	5	0	3	0	8
2011年度	2	0	5	0	7
2010年度	3	0	11	0	14
2009年度	2	1	6	0	9
2008年度	2	0	0	0	2
2007年度	1	0	10	0	11

その他の研究活動

海外渡航状況, 海外での教育研究歴

CERN（欧州原子核研究所）, Switzerland, 2012.09～2012.10.

CERN（欧州原子核研究所）, Switzerland, 2011.10～2011.11.

CERN（欧州原子核研究所）, Switzerland, 2011.06～2011.07.

Paul Scherrer Institut, Switzerland, 2010.12～2010.12.

Paul Scherrer Institut, Switzerland, 2010.07～2010.07.

Joint Institute for Nuclear Research, Russia, 2009.10～2009.10.

Joint Institute for Nuclear Research, Russia, 2008.10～2008.10.

Joint Institute for Nuclear Research, Russia, 2007.09～2007.09.

Joint Institute for Nuclear Research, Russia, 2006.09～2006.09.

Joint Institute for Nuclear Research, Tbilisi University, Russia, Geoagia, 2005.09～2005.10.

Joint Institute for Nuclear Research, Russia, 2004.09～2004.10.

Joint Institute for Nuclear Physics, Russia, 2003.09～2003.09.

Joint Institute for Nuclear Physics, Russia, 2001.11～2001.11.

FZR Jurlich, University of Liege, Germany, Belgium, 2001.08～2001.08.

FZR Juelich, Germany, 1996.10～1996.11.

FZR Juelich, Germany, 1995.02～1996.05.

外国人研究者等の受入れ状況

2018.12～2018.12, 2週間未満, Joint Institute for Nuclear Research, Belarus, .

2018.12～2018.12, 2週間未満, Joint Institute for Nuclear Research, Russia, .

2015.04～2015.04, 2週間未満, Joint Institute for Nuclear Research, Belarus, .

2015.04～2015.04, 2週間未満, Joint Institute for Nuclear Research, Georgia, 学内資金.

2013.11～2013.11, 2週間未満, Joint Institute for Nuclear Research, Georgia, .

2013.11～2013.11, 2週間未満, Joint Institute for Nuclear Research, Belarus, .

2011.01～2011.03, 1ヶ月以上, Joint Institute for Nuclear Research, Georgia, 日本学術振興会.

2008.05～2008.05, 2週間以上1ヶ月未満, Tbilisi State University, グルジア, 外国政府・外国研究機関・国際機関.

2008.05～2008.05, 2週間以上1ヶ月未満, Joint Institute for Nuclear Research, Russia, 外国政府・外国研究機関・国際機関.

2007.11～2007.11, 2週間未満, Joint Institute for Nuclear Research, Russia, 外国政府・外国研究機関・国際機関.

2007.03～2007.05, 1ヶ月以上, Joint Institute for Nuclear Research, Georgia, 日本学術振興会.

2006.03～2006.04, 1ヶ月以上, Joint Institute for Nuclear Research, Belarus, .

2005.04～2005.04, 2週間未満, Joint Institute for Nuclear Research, Russia, 外国政府・外国研究機関・国際機関.

2005.02～2005.04, 1ヶ月以上, Joint Institute for Nuclear Research, Georgia, 日本学術振興会.

受賞

The best paper award, Biomedical Fuzzy System Association, 2008.10.

論文賞, 日本原子力学会, 1995.03.

研究資金

共同研究、受託研究(競争的資金を除く)の受入状況

2008.04～2009.03, 代表, シンチレータ結晶の発光効率ユニバーサルカーブの研究.

2008.04～2009.03, 分担, 微視的トラック構造研究に向けた単一電子照射法の開発.

九大関連コンテンツ

pure2017年10月2日から、「九州大学研究者情報」を補完するデータベースとして、Elsevier社の「Pure」による研究業績の公開を開始しました。

九州大学知的財産本部「九州大学Seeds集」

QIR　九州大学学術情報リポジトリシステム情報科学研究院

工学部・工学研究院


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