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

• 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
• Project Status: Completed (Fiscal Year 2008)
• Budget Amount: ¥2,850,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥450,000); Fiscal Year 2008: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000); Fiscal Year 2007: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000); Fiscal Year 2006: ¥900,000 (Direct Cost: ¥900,000)
• 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 / チャンネル結合法 / ポテンシャルエネルギー表面 / 核分裂障壁 / 統計模型 / 核分裂 / 光学ポテンシャル / 直接・半直接中性子捕獲

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: 15809-15809
• [Journal Article] Neutrino-nucleus Reaction Cross Sections for Light Element Synthesis in Supernova Explosions (2008)
  • Author(s): T. Yoshida, T. Suzuki, S. Chiba, T. Kajino, H. Yokomakura, K. Kimura, A. Takamura, D. H. Hartmann
  • Journal Title: The Astrophysical Journal 646 Pages: 448-466
  • Peer Reviewed
• [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, E. Bauge
  • Journal Title: J. Nucl. Sci. Technol 45 Pages: 333-340
  • Peer Reviewed
• [Journal Article] Direct and semi-direct capture in low-energy (n, γ) reactions of neutron-rich tin isotopes and its implications for reprocess nucleosynthesis (2008)
  • Author(s): S. Chiba, H. Koura, T. Hayakawa, T. Maruyama, T. Kawano, T. Kajino
  • Journal Title: Phys. Rev. C 77 Pages: 15809-15809
  • Peer Reviewed
• [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. Kaiino
  • Journal Title: Phys.Rev.C 77 Pages: 15809-15809
  • Peer Reviewed
• [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
• [Journal Article] Nucleon direct-semidirect radiative capture with Skyrme-Hartree-Fock-BCS bound state (2007)
  • Author(s): L. Bonneau, T. Kawano, T. Watanabe and S. Chiba
  • Journal Title: Phys.Rev.C 75 Pages: 54618-54618
  • Peer Reviewed
• [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
  • Peer Reviewed
• [Journal Article] Angular distributions of Protons Scattered by ^<40>Ar Nuclei with Excitation of the 2^+(1.46 MeV) and 3-(3.68 MeV) Collective Levels for Incident Energies of 25.1, 32.5 and 40.7 MeV (2007)
  • Author(s): N.T.Okumucsoglu, F.K.Gorur, J.Birchall, E.Sh.Soukhovitskii, R.Capote, J.M.Quesada, S.Chiba
  • Journal Title: Physical Review C 75 Pages: 34616-34616
• [Journal Article] Neutrino Nucleus Reactions based on New Shell Model Hamiltonians (2006)
  • Author(s): T.Suzuki, S.Chiba, T.Yoshida, T.Kajino, T.Otsuka
  • Journal Title: Physical Review C 74 Pages: 34307-34307
• [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] 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
• [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
• [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
• [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
• [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
• [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
• [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: 高知工科大学
• [Presentation] Systematics and uncertainties of Hamiltonian parameters of soft-rotator model for actinides and their implications for nuclear data calculations (2007)
  • Author(s): S. Chiba, H. Koura, T. Mamyama, S. Kunieda and E.Sh. Soukhovitskij
  • Organizer: Int.Conf.on Nucl.Data for Science and Tech
  • Place of Presentation: ニース(フランス)
• [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