evelopment of theoretical method to calculate neutron-induced fission cross sections

2008 Fiscal Year Final Research Report

• Project/Area Number: 18560805
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Nuclear engineering
• Research Institution: Japan Atomic Energy Agency
• Principal Investigator: CHIBA Satoshi Japan Atomic Energy Agency, 先端基礎研究センター, 研究主幹 (60354883)
• Co-Investigator(Kenkyū-buntansha): MARUYAMA Toshiki 独立行政法人日本原子力研究開発機構, 先端基礎研究センター, 研究主幹 (50354882) ; KOURA Hiroyuki 独立行政法人日本原子力研究開発機構, 先端基礎研究センター, 研究副主幹 (50391264)
• Project Period (FY): 2006 – 2008
• Keywords: 核データ / 中性子誘起核分裂 / 集団準位構造 / 軟回転体模型 / チャンネル結合模型

Research Abstract

核構造の効果を詳細に取り入れた軟回転体模型-チャンネル結合計算(SRM-CC)手法の開発及び高度化と、ポテンシャル表面の系統的計算による核分裂障壁の導出を行い、アクチノイド領域核種の中性子誘起核分裂断面積計算手法の開発を行った。

Research Products

• [Journal Article] An Extensive Study of the Soft-rotator Model Hamiltonian Parameters for Medium and Heavy Even-even Nuclei (2009)
  • Author(s): S. KUNIEDA, S. CHIBA, K. SHIBATA, A. ICHIHARA, O. IWAMOTO, N. IWAMOTO, T. FUKAHORI and E. Sh. SUKHOVITSKI
  • Journal Title: J. Nucl. Sci. Tech. (in press)
• [Journal Article] A global dispersive coupled-channel optical model potential for actinides (2008)
  • Author(s): R. Capote, S. Chiba, E.Sh. Soukhovitskij, J.M. Quesada and E. Bauge
  • Journal Title: J. Nucl. Sci. Technol 45 Pages: 333-340
• [Journal Article] Direct and semi-direct capture in low -energy (n,γ) reactions of neutron-rich tin isotopes and its implications for r-process nucleosynthesis (2008)
  • Author(s): S.Chiba, H. Koura, T. Hayakawa, T. Maruyama, T. Kawano and T. Kajino
  • Journal Title: Phys. Rev. C 77 Pages: 015809
• [Journal Article] Coupled-channels Optical Model Analyses of Nucleon-induced Reactions for Medium and Heavy Nuclei in the Energy Region from 1 keV to 200 MeV (2007)
  • Author(s): S. Kunieda, S. Chiba, K. Shibata, A. Ichihara and E.Sh. SUKHOVITSKII
  • Journal Title: J. Nucl. Sci. Technol. 44 Pages: 838-852
• [Presentation] A Dispersive, Lane-consistent Coupled-channel Optical Model Based onSoft-rotator Theory for Accurate Calculation of Nuclear Reaction Data (2009)
  • Author(s): S. Chiba, E. Sh. Soukhovitskij, R. Capote and J.M. Quesada
  • Organizer: Proc. Of 2009 International Congress on Advances in Nuclear Power Plants, ICAPP2009, 9172
  • Place of Presentation: Shinjuku, Tokyo, Japan
  • Year and Date: 20090510-14
• [Presentation] 原子力と核物理の接点 (2009)
  • Author(s): 千葉 敏
  • Organizer: 理研ミニワークショップ『核データと核理論』
  • Year and Date: 2009-03-25
• [Presentation] 軟回転体模型核構造パラメータの妥当性および系統性に関する調査 (2008)
  • Author(s): 国枝 賢、千葉 敏、柴田 恵一、市原晃
  • Organizer: 日本原子力学会秋の大会
  • Place of Presentation: 高知工科大
  • Year and Date: 20080904-06
• [Presentation] Systematics and uncertainties of Hamiltonian parameters of soft-rotator model for ctinides and their implications for nuclear data calculations (2008)
  • Author(s): S. Chiba, H. Koura, T. Maruyama, S. Kunieda and E.Sh. Soukhovitksii
  • Organizer: Proc. of Int. Conf. on Nucl. Data for Science and Technology 2007, pp305-308, EDP Sciences
  • Year and Date: 20080000
• [Presentation] Systematic nucleon-induced optical model analysis for medium and heavy nuclei with coupled-channel framework (2008)
  • Author(s): S. Kunieda, S. Chiba, K. Shibata, A. Ichihara and E.Sh. Sukhovitskii
  • Organizer: Proc. of Int. Conf. on Nucl. Data for Science and Technology 2007, pp227-230, EDP Sciences
  • Year and Date: 20080000
• [Presentation] Systematic study for the mass distribution of fission fragments in the neutron rich region (2008)
  • Author(s): M. Ohta, S. Tatsuda, T. Hashizume, K. Yamamoto, T. Wada, K. Sumiyoshi, K. Otsuki, T. Kajino, H. Koura, S. Chiba and T. Tachibana
  • Organizer: Proc. of Int. Conf. on Nucl. Data for Science and Technology 2007, pp359-362, EDP Sciences
  • Year and Date: 20080000
• [Presentation] The r-process element abundance with a realistic fission fragment mass distribution (2008)
  • Author(s): S. Chiba, H. Koura, T. Maruyama, M. Ohta, S. Tatsuda, T. Wada, T. Tachibana, K. Sumiyoshi, K. Otsuki and T. Kajino
  • Organizer: Proc. of the 10th Int. Symp. on Origin of Matter and Evolution of Galaxies (OMEG07), AIP Conf. Proc. 1016, pp.162-167
  • Year and Date: 20080000
• [Presentation] Fission fragment mass distribution for nuclei in the r-process region
  • Author(s): S. Tatsuda, K. Hashizume, T. Wada, M. Ohta, K. Sumiyoshi, K. Otsuki, T. Kajino, H. Koura, S. Chiba, and Y. Aritomo
  • Organizer: TOURS Symposium on Nuclear Physics VI, ed. M. Arnould et al., (AIP Conf. Proc. 891, 2007), pp.423-426