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Measurement of neutron capture cross sections of light nuclei related to r-process nucleosynthesis

Research Project

Project/Area Number 25400304
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Particle/Nuclear/Cosmic ray/Astro physics
Research InstitutionJapan Atomic Energy Agency

Principal Investigator

Makii Hiroyuki  国立研究開発法人日本原子力研究開発機構, 原子力科学研究部門 先端基礎研究センター, 研究員 (20425573)

Co-Investigator(Renkei-kenkyūsha) Segawa Mariko  国立研究開発法人日本原子力研究開発機構, 原子力科学研究部門原子力基礎工学研究センター, 研究副主幹 (00435603)
Nishinaka Ichiro  国立研究開発法人日本原子力研究開発機構, 原子力科学研究部門量子ビーム応用研究センター, 研究副主幹 (70354884)
Nishio Katsuhisa  国立研究開発法人日本原子力研究開発機構, 原子力科学研究部門先端基礎研究センター, 研究主幹 (70343928)
Hirose Kentaro  国立研究開発法人日本原子力研究開発機構, 原子力科学研究部門 先端基礎研究センター, 研究副主幹 (20436083)
Orandi Riccardo  国立研究開発法人日本原子力研究開発機構, 原子力科学研究部門先端基礎研究センター, 研究員 (50737608)
Project Period (FY) 2013-04-01 – 2016-03-31
Project Status Completed (Fiscal Year 2015)
Budget Amount *help
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2015: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2014: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2013: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Keywords中性子捕獲反応 / 中性子捕獲断面積 / 元素合成 / r過程 / 核データ / r-過程 / r-過程
Outline of Final Research Achievements

The neutron capture cross section with light elements such as Li and Be, plays an important role in explosive nucleosynthesis, like r(rapid)-process. Intense pulsed neutron beam provided by the MLF in the J-PARC and gamma-ray detectors with high efficiency, which are installed in the Accurate Neutron-Nucleus Reaction Measurement Instrument (ANNRI) at the Beam Line No. 4 of the MLF in the J-PARC, allow us to study neutron capture reactions with quite small cross sections. We have measured the neutron capture cross sections of Li-7 and Be-9.

Report

(4 results)
  • 2015 Annual Research Report   Final Research Report ( PDF )
  • 2014 Research-status Report
  • 2013 Research-status Report
  • Research Products

    (13 results)

All 2016 2015 2014 2013

All Journal Article (6 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 5 results,  Open Access: 2 results,  Acknowledgement Compliant: 1 results) Presentation (7 results) (of which Invited: 3 results)

  • [Journal Article] A Comprehensive Approach to Determination of Nuclear Data of Unstable Nuclei2016

    • Author(s)
      Satoshi Chiba, Katsuhisa Nishio, Yohihiro Aritomo, Hiroyuki Koura, Osamu Iwamoto, Hiroyuki Makii, Ichiro Nishinaka, and Kentaro Hirose
    • Journal Title

      EPJ Web of Conferences

      Volume: 106 Pages: 04004-04004

    • DOI

      10.1051/epjconf/201610604004

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Development of a measurement system for the determination of (n,gamma) cross-sections using multi-nucleon transfer reactions2015

    • Author(s)
      H. Makii, S. Ota, T. Ishii, Y. Wakabayashi, K. Furutaka, I. Nishinaka, S. Chiba, M. Igasira, A. Czeszumska
    • Journal Title

      Nuclear Instruments and Methods in Physics Research A

      Volume: 797 Pages: 83-93

    • DOI

      10.1016/j.nima.2015.05.005

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Excitation energy dependence of fragment-mass distributions from fission of 180,190Hg formed in fusion reactions of 36Ar + 144,154Sm2015

    • Author(s)
      K. Nishio, A.N. Andreyev, R. Chapman, X. Derkx, Ch.E. Dullmann, L. Ghys, F.P. Hebberger, K. Hirose, H. Ikezoe, J. Khuyagbaatar, B. Kindler, B. Lommel, H. Makii, I. Nishinaka, T. Ohtsuki, S.D. Pain, S. Sagaidak, I. Tsekhanovich, M. Venhart, Y. Wakabayashi, S. Yan
    • Journal Title

      Physics Letters B

      Volume: 748 Pages: 89-94

    • DOI

      10.1016/j.physletb.2015.06.068

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Measurement of neutron capture cross section of Li-7 at J-PARC / MLF / ANNRI2014

    • Author(s)
      H. Makii, M. Segawa, S. Ota, A. Kimura, I. Nishinaka, K. Nishio, H. Harada
    • Journal Title

      AIP Coference Proceedings

      Volume: 1594 Pages: 345-350

    • DOI

      10.1063/1.4874093

    • Related Report
      2014 Research-status Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Development of Anti-Compton LaBr3(Ce) Spectrometer for Measurement of Surrogate Reactions2014

    • Author(s)
      H. Makii, S. Ota, T. Ishii, K. Nishio, I. Nishinaka, K. Furutaka, Y. Wakabayashi, S. Chiba, M. Igashira
    • Journal Title

      Nuclear Data Sheets

      Volume: 119 Pages: 361-364

    • DOI

      10.1016/j.nds.2014.08.099

    • Related Report
      2014 Research-status Report
  • [Journal Article] The 6Li(22Ne, 26Mg)d α-transfer experiment for the study of low-energy resonances in 22Ne(α,γ)26Mg2014

    • Author(s)
      Shuya Ota, Hiroyuki Makii, Tetsuro Ishii, Christopher Angell, Daniel W. Bardayan, Satoshi Chiba, Ichiro Nishinaka, Katsuhisa Nishio, Milan Matos, Shinichi Mitsuoka, and Steven Pain
    • Journal Title

      EPJ Web of Conferences

      Volume: 66 Pages: 07017-07017

    • DOI

      10.1051/epjconf/20146607017

    • Related Report
      2013 Research-status Report
    • Peer Reviewed
  • [Presentation] 大強度重イオンビームを用いた天体核反応率測定2016

    • Author(s)
      牧井 宏之
    • Organizer
      宇宙核物理連絡協議会(宇核連)研究会
    • Place of Presentation
      国立天文台三鷹キャンパス(東京都三鷹市)
    • Year and Date
      2016-02-22
    • Related Report
      2015 Annual Research Report
    • Invited
  • [Presentation] 235U熱中性子核分裂における即発ガンマ線スペクトルの測定2015

    • Author(s)
      牧井宏之、西尾勝久、西中一朗、廣瀬健太郎、Riccardo Orlandi、James Smallcombe、Romain Leguillon、関本俊、高宮幸一、大槻勤
    • Organizer
      第49回学術講演会
    • Place of Presentation
      京都大学原子炉実験所、大阪府
    • Year and Date
      2015-01-28 – 2015-01-29
    • Related Report
      2014 Research-status Report
  • [Presentation] Be-9の中性子捕獲反応断面積測定2014

    • Author(s)
      牧井 宏之、R. Orlandi、廣瀬健太郎、西中一朗、西尾勝久、瀬川麻里子、木村敦、中村詔司
    • Organizer
      第3回ANNRI研究会
    • Place of Presentation
      いばらき量子ビーム研究センター、茨城県
    • Year and Date
      2014-09-01
    • Related Report
      2014 Research-status Report
    • Invited
  • [Presentation] Measurement of neutron capture reaction Be-9 at J-PARC / MLF / ANNRI2014

    • Author(s)
      H. Makii, R. Orlandi, K. Hirose, I. Nishinaka, K. Nishio, M. Segawa, A. Kimura, S. Nakamura
    • Organizer
      2nd International Symposium on Science at J-PARC
    • Place of Presentation
      Tsukuba International Congress Center, Ibaraki, Japan
    • Year and Date
      2014-07-12 – 2014-07-15
    • Related Report
      2014 Research-status Report
  • [Presentation] J-PARC/MLF/ANNRI を用いたLi-6,7 の中性子捕獲断面積測定2014

    • Author(s)
      牧井 宏之、瀬川 麻里子、太田 周也、木村 敦、西中 一朗、西尾 勝久、原田 秀郎
    • Organizer
      日本原子力学会2014 年春の年会
    • Place of Presentation
      東京都市大学、東京都
    • Related Report
      2013 Research-status Report
  • [Presentation] 鏡映対称性の検証に向けたLi同位体の中性子捕獲ガンマ線の測定2013

    • Author(s)
      牧井 宏之
    • Organizer
      第2回ANNRI研究会
    • Place of Presentation
      いばらき量子ビーム研究センター、茨城県
    • Related Report
      2013 Research-status Report
    • Invited
  • [Presentation] Measurement of neutron capture cross section of Li-7 at J-PARC / MLF / ANNRI2013

    • Author(s)
      H. Makii, M. Segawa, S. Ota, A. Kimura, I. Nishinaka, K. Nishio, H. Harada
    • Organizer
      The 12th International Symposium on Origin of Matter and Evolution of Galaxies - OMEG12
    • Place of Presentation
      Tsukuba, Japan
    • Related Report
      2013 Research-status Report

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Published: 2014-07-25   Modified: 2019-07-29  

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