Kyushu University Academic Staff Educational and Research Activities Database
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Yukinobu Watanabe Last modified date:2020.03.27

Graduate School
Undergraduate School

 Reseacher Profiling Tool Kyushu University Pure
Academic Degree
Doctor of Engineering
Field of Specialization
Nuclear Physics and Nuclear Data
Outline Activities
I am working in the research field related to high-energy nuclear data which are needed for various accelerator-related applications, such as accelerator-driven transmutation systems, advanced cancer therapy with particle beams, space development, etc.: measurements of cross section data and their theoretcial analysis based on advanced nuclear reaction models. Also, I am doing research and development of a new type of accelerator-driven neutron source in the MeV region using Kyushu university tandem acclerator and studying cosmic-ray neutron induced soft error phenomena in semiconductor devices. My resposibility for eduaction is to teach and supervise students not only in the graduate course of the department of advanced energy engineering science but also in the undergraduate cources of the department of energy science and technology. As my social activities, I join some working groups in the Japanese Nuclear Data Committee, and teach the knowledge and topics on radiation to junior high and senior high school students in cooperation with the Japan Atomic Energy Relations Organization.
Research Interests
  • Reduction and Resource Recycle of High Level Radioactive Wastes with Nuclear Transmutation; study of fast neutron induced spallation reactions
    keyword : Long-life fission products, nuclear transmutation, spallation reaction, cross section measurement, inverse kunematics, fast neutron production
  • Study on cosmic-ray induced soft error phenomena in semiconductor devices
    keyword : semiconductor devices, cosmic-rays, neutron, proton, soft errors, nuclear reactions, simulation
    2008.04"Study of cosmic-ray neutron or proton induced soft error phenomena in semiconductor devices", this study is devoted to understanding of cosmic-ray induced soft errors phenomena in microelectronics devices and establishing a method of estimating soft error rates. We are developing a Monte Carlo simulation code to study the initial processes (generation of secondary ions from nucleon-induced reactions on Si and charge deposit, etc) in the physical mechanism of soft errors..
  • Study of deuteron nuclear data relevant to accelerator-based neutron sources
    keyword : deuteron, nuclear data, breakup reactions, continuum discretized coupled-channels(CDCC) method, accelerator-driven neutron source
    2007.04"Study of deuteron nuclear data relevant to accelerator-based neutron sources".
  • Study of ion acceleration driven by ultra-intense short pulse laser
    keyword : Quantum beam technology, ultra-intense short pulse laser, high-energy ions, medical applications, accelerator ion sources
  • Study of neutron-induced reactions on light nuclei relevant to fusion technology
    keyword : fusion technology, neutron-induced reactions, light nuclei, continuum discretized coupled channels
  • Development of a highly-sensitive and inexpensive radioactivity measurement system
    keyword : NaI scintillator, unfolding, radioactive cesium, response function
  • Study of high-energy nuclear data evaluation
    keyword : high-energy nuclear data, nuclear reaction database
    1999.04~2015.03"Study of high-energy nuclear data evaluation", The high-energy nuclear data are needed for various accelerator-related applications, such as accelerator-driven transmutation system and advanced cancer therapy with particle beams, and space development. The cross sections for neutron and proton induced reactions up to 3 GeV are evaluated for 12,13C, 28,29,30Si and 24,25,26Mg, using available experimental data and theoretical model calculations..
Academic Activities
1. Nuclear Science and Engineering Expected in High-Intensity Proton Accelerator Facility (J-PARC).
1. Hairui Guo, Yukinobu Watanabe, Takuma Matsumoto, Kohei Nagaoka, Kazuyuki Ogata, and Masanobu Yahiro, Analysis of nucleon and triton emissions from nucleon-7Li collisions below 20 MeV, Physical Review C, 10.1103/PhysRevC.99.034602, 99, 034602, 2019.03.
2. Shinsuke Nakayama, Naoya Furutachi, Osamu Iwamoto, Yukinobu Watanabe, Role of breakup processes in deuteron-induced spallation reactions at 100–200 MeV/nucleon, Physical Review C, 10.1103/PhysRevC.98.044606, 98, 044606, 2018.10.
3. Seiya Manabe, Yukinobu Watanabe, Wang Liao, Masanori Hashimoto, Keita Nakano, Hikaru Sato, Tadahiro Kin, Shin-ichiro Abe, Koji Hamada, Motonobu Tampo and Yasuhiro Miyake, Negative and Positive Muon-Induced Single Event Upsets in 65-nm UTBB SOI SRAMs, IEEE Transaction on Nuclear Science, 10.1109/TNS.2018.2839704, 65, 8, 1742-1749, 2018.08, 半導体ソフトエラー現象は放射線照射による一過性の誤動作として知られており、地上に降り注ぐ宇宙線による影響が危惧されている。本研究では、宇宙線素粒子ミューオンによる影響を調査するために、SRAMメモリ素子に低エネルギー正及び負ミューオンの照射試験を実施し、入射運動量や動作電圧を変化させビット反転の発生確率(SEU断面積)を系統的に測定した。この結果、正ミューオンに比べて負ミューオンの方がSEU断面積が大きくなることを実験的に初めて明らかにした。粒子輸送計算コードPHITSを用いたシミュレーションを行い、この差は負ミューオンの原子核捕獲から生成する二次イオンのでメモリーセル内への電荷付与に起因することを見出した。.
4. Shoichiro Kawase, Keita Nakano, Yukinobu Watanabe, He Wang, Hideaki Otsu, Hiroyoshi Sakurai (他43名), Study of proton- and deuteron-induced spallation reactions on the long-lived fission product 93Zr at 105 MeV/nucleon in inverse kinematics, Prog. Theor. Exp. Phys., 10.1093/ptep/ptx110, 093D03 (10 pages), 2017.09, 理研RIBFにおいて逆運動学手法を用いて、長寿命核分裂生成物核種であるZr-93に対する105 MeV/核子 陽子・重陽子入射核破砕反応による同位体生成断面積を測定した。Zr、Y同位体生成量分布において、中性子魔法数N=50に起因すると思われるギャップを観測した。粒子・重イオン輸送計算コードPHITSに組み込まれている核反応理論モデル計算との比較の結果、計算は少数の核子を除去する反応の断面積を大きく過剰評価しており、現モデルの改良の必要性を明らかにした。本実験データは、核破砕反応が高レベル放射性廃棄物中のZr-93を処理する核反応プロセスの有力な候補であることを示唆している。.
5. Shouhei Araki, Yukinobu Watanabe, Mizuki Kitajima, Hiroki Sadamatsu, Keita Nakano, Tadahiro KIN, Yosuke Iwamoto, Daiki Satoh, Masayuki Hagiwara, Hiroshi Yashima, Tatsushi Shima, Systematic measurement of double-differential neutron production cross sections for deuteron-induced reactions at an incident energy of 102 MeV, Nuclear Instruments and Methods in Physics Research A,, 842, 62-70, 2017.01, Double-differential neutron production cross sections (DDXs) for deuteron-induced reactions on Li, Be, C, Al,
Cu, and Nb at 102 MeV were measured at forward angles ≤25° by means of a time of flight (TOF) method with
NE213 liquid organic scintillators at the Research Center of Nuclear Physics (RCNP), Osaka University. The experimental DDXs and energy-integrated cross sections were compared with TENDL-2015 data and Particle and Heavy Ion Transport code System (PHITS) calculation using a combination of the KUROTAMA model, the Liege Intra-Nuclear Cascade model, and the generalized evaporation model. The PHITS calculation showed better agreement with the experimental results than TENDL-2015 for all target nuclei, although the shape of the broad peak around 50 MeV was not satisfactorily reproduced by the PHITS calculation..
6. Shinsuke Nakayama, Hiroshi Kouno, Yukinobu Watanabe, Osamu Iwamoto, Kazuyuki Ogata, Theoretical model analysis of (d,xn) reactions on 9Be and 12C at incident energies up to 50 MeV, Physical Review C, DOI: 10.1051/epjconf/2016122004004, 94, 014618, 2016.07.
7. Hairui Guo, Y. Watanabe, Takuma Matsumoto, Kazuyuki Ogata, Masanobu Yahiro, Systematic analysis of nucleon scattering from 6,7Li with the continuum discretized coupled channels method, Physical Review C, 10.1103/PhysRevC.87.024610, 87, 024610(9 pages), 2013.02.
8. Shin-ichiro Abe, Yukinobu Watanabe, Nozomi Shibano, Nobuyuki Sano, Hiroshi Furuta, Masafumi Tsutsui, Taiki Uemura, and Takahiko Arakawa, Multi-Scale Monte Carlo Simulation of Soft Errors Using PHITS-HyENEXSS Code System, IEEE Transactions on Nuclear Science, 10.1109/TNS.2012.2187215, 59, 4, 965-970, 2012.08.
9. Tao Ye, Shintaro Hashimoto, Yukinobu Watanabe, Kazuyuki Ogata, Masanobu Yahiro, Analysis of inclusive (d,xp) reactions on nuclei from 9Be to 238U at 100 MeV, Physical Review C, 10.1103/PhysRevC.84.054606, 84, 054606(8 pages), 2011.11.
10. Y. Watanabe, K. Kosako, S. Kunieda, S. Chiba, R. Fujimoto, H. Harada, M. Kawai, F. Maekawa, T. Murata, H. Nakashima, K. Niita, N. Shigyo, S. Shimakawa, N. Yamamo, T. Fukahori, Status of JENDL High Energy File, J. Korean Physical Society, 10.3938/jkps.59.1040, 59, 2, 1040-1045, 2011.08.
11. Tao Ye, Yukinobu Watanabe, Kazuyuki Ogata, Analysis of deuteron breakup reactions on 7Li for energies up to 100 MeV, Physical Review C, Vol. 80, 014604(8 pages), 2009.07.
12. K. SHIBATA, T. KAWANO, T. NAKAGAWA, O. IWAMOTO, J. KATAKURA, T. FUKAHORI, S. CHIBA, A. HASEGAWA, T. MURATA, H. MATSUNOBU, T. OHSAWA, Y. NAKAJIMA, T. YOSHIDA, A. ZUKERAN, M. KAWAI, M. BABA, M. ISHIKAWA, T. ASAMI, T. WATANABE, Y. WATANABE, M. IGASHIRA, N. Y, Japanese Evaluated Nuclear Data Library Version 3 Revision-3: JENDL-3.3, J. of Nucl. Sci. and Technol., 10.3327/jnst.39.1125, 39, 11, 1125-1136, Vol.39, pp. 1125-1136, 2002.01.
13. Y. Watanabe, R. Kuwata, Sun Weili, M. Higashi, H. Shinohara, M. Kohno, K. Ogata, M. Kawai, Semiclassical distorted wave model analysis of multistep direct (p.p'x) and (p,nx) reactions to the continuum, Phys. Rev. C, 10.1103/PhysRevC.59.2136, 59, 4, 2136-2151, Vol. 59, No.4, pp.2136-2151, 1999.04.
1. Seiya Manabe, Yukinobu Watanabe, Wang Liao, Masanori Hashimoto, Keita Nakano, Hikaru Sato, Tadahiro Kin, Koji Hamada, Motonobu Tampo, Yasuhiro Miyake, Momentum and Supply Voltage Dependences of SEUs Induced by Low-energy Negative and Positive Muons in 65-nm UTBB-SOI SRAMs, RADECS2017, 2017.10, We have performed an irradiation test of low-energy positive and negative muons on 65-nm ultra-thin body and thin buried oxide (UTBB-SOI) SRAMs. The SEU cross sections were measured systematically as a function of incident muon momentum and operating supply voltage. The experimental result showed that the negative muon SEUs occur at about 3 times higher rate than the positive muon ones at the supply voltage of 0.5 V when the incident muons stop near the sensitive volume, because the capture of negative muon by atomic nuclei generates secondary ions with high LET in addition to direct ionization of incident muon..
2. Yukinobu Watanabe, Tadahiro Kin, Shouhei Araki, Shinsuke Nakayama, Osamu Iwamoto, Deuteron nuclear data for the design of accelerator-based neutron sources: measurement, model analysis, evaluation, and application, International Conference on Nuclear Data for Science and Technology (ND2016), 2016.09.
3. Y. Watanabe, H. Guo, N. Nagaoka, T. Matsumoto, K. Ogata, M. Yahiro, Nucleon and triton production from nucleon-induced reactions on 7Li, Fifth International Workshop on Compound-Nuclear Reactions and Related Topics (CNR*15), 2015.10.
4. Shin-ichiro Abe, Yukinobu Watanabe, Analysis of Single Event Upsets Induced by Low Energy Neutrons in a 25 nm MOSFET, IEEE Nuclear and Space Radiation Effects Conference (NSREC2014), 2014.07, We have analyzed SEUs induced by low energy neutrons in a 25nm MOSFET using PHYSERD simulation and clarified that the relative importance between elastic recoils and light ions depends on the size of interaction volume..
Membership in Academic Society
  • Atomic Energy Society of Japan
  • The Physics Society of Japan
  • American Physical Society
  • The Japan Society of Applied Physics
Educational Activities
(1) Graduate course
- Introduction to energy transport
- Fundamental nuclear science and engineering
- Fundamental radiation physics and engineering
- Seminar and experiment on energy physics engineering

(2) Undergraduate course
- Quantum Mechanics II
- Basic experiment on science and engineering
Professional and Outreach Activities
- Participation in activities in a working group, high-energy nuclear data evaluation, as a member of the Japan Nuclear Data Committee
- Lecturer of the Japan Atomic Energy Relations Organization for education on radiation for junior high and senior high school students
- Director of the Kuroda Scholarship Foundation.