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STUDY ON NEUTRON REACTION CROSS SECTIONS OF IMPORTANT FISSION PRODUCTS

Research Project

Project/Area Number 07680525
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field エネルギー学一般・原子力学
Research InstitutionTOKYO INSTITUTE OF TECHNOLOGY

Principal Investigator

IGASHIRA Masayuki  TOKYO INSTITUTE OF TECHNOLOGY,RESEARCH LABORATORY FOR NUCLEAR REACTORS,ASSOCIATE PROFESSOR, 原子炉工学研究所, 助教授 (10114852)

Co-Investigator(Kenkyū-buntansha) OHSAKI Toshirou  TOKYO INSTITUTE OF TECHNOLOGY,RESEARCH LABORATORY FOR NUCLEAR REACTORS,RESEARCH, 原子炉工学研究所, 助手 (80262327)
KITAZAWA Hideo  TOKYO INSTITUTE OF TECHNOLOGY,INTERDISCIPLINARY GRADUATE SCHOOL OF SCIENCE AND E, 総合理工学研究科, 教授 (50016862)
Project Period (FY) 1995 – 1996
Project Status Completed (Fiscal Year 1996)
Budget Amount *help
¥2,200,000 (Direct Cost: ¥2,200,000)
Fiscal Year 1996: ¥300,000 (Direct Cost: ¥300,000)
Fiscal Year 1995: ¥1,900,000 (Direct Cost: ¥1,900,000)
KeywordsFission Product / Neutron Reaction Cross Section / Neutron Capture Reaction / Neutron Inelastic Scattering Reaction
Research Abstract

Accurate neutron reaction cross sections of important fission products are needed to develop an innovative nuclear reactor which aims at very high burn-up of fuel or incineration of transuranic elements. The purposes of the present study are to accurately measure capture cross sections, capture gamma-ray spectra, and inelastic scattering cross sections of Nd-143,145 and Sm-147,150 in an incident neutron energy region of 10 to 800 keV,to theoretically analyze the mesured results, to investigate not only the present results but also the current results of Ce-140, Pr-141, Sm-148,149,152,154, and Dy-161,162,163, and to elucidate the mechanisms of neutron capture and inelastic scattering by important fission products.
The results of the present study are summarized as follows :
1. The capture cross sections, capture gamma-ray spectra, and inelastic scattering cross sections of Nd-143,145 and Sm-147,150 were measured with the error of about 5% in an incident neutron energy region of 10 to 800 keV.
2. It was found that a statistical model calculation could reproduce the measured capture cross sections and capture gamma-ray spectra of the four nuclides.
3. It was found that the inelastic scattering cross sections of the four nuclides could be reproduced by a statistical model calculation plus a direct model calculation with a distorted-wave Born approximation.
4. It is the next problem to elucidate the mechanisms of neutron capture and inelastic scattering by important fission products after investigating not only the experimental and theoretical results of the four nuclides but also the current results of other nuclides.

Report

(3 results)
  • 1996 Annual Research Report   Final Research Report Summary
  • 1995 Annual Research Report
  • Research Products

    (19 results)

All Other

All Publications (19 results)

  • [Publications] 井頭 政之: "Measurements of KeV-Neutron Capture Gamma Rays" NEA/NSC/DOC(95). 1. 269-280 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] 井頭 政之: "Measurements of KeV-Neutron Capture γ Rays of Fission Products" JAERI-Conf. 95-008. 129-132 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] 井頭 政之: "消滅処理研究のための中・低エネルギー中性子断面積の測定" JAERI-Conf.95-017. 77-84 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] 井頭 政之: "Measurements of KeV-Neutron Capture γ Rays of Fission Products(II)" JAERI-Conf.96-008. 123-128 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] 井頭 政之: "Measurements of KeV-Neutron Capture γ Rays of Fission Products(III)" JAERI-Conf.97-005. 141-146 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] 井頭 政之: "Measurement of KeV-Neutron Capture Cross Sections of Rare Earth Nuclides" Proc.Int.Conf.on Future Nuclear Systems:Global'97,Yokohama. 2. 1360-1364 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] M.Igashira et al.: "Measurements of keV-Neutron Capture Gamma Rays" NEA/NSC/DOC(95). 1. 269-280 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] M.Igashira: "Measurements of keV-Neutron Capture gamma Rays of Fission Products" JAERI-Conf. 95-008. 129-132 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] M.Igashira: "Neutron-Cross-Section Measurement in Medium-and Low-Energy Regions for Studies on Nuclear Incineration" JAERI-Conf. 95-017. 77-84 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] M.Igashira: "Measurements of keV-Neutron Capture gamma Rays of Fission Products(II)" JAERI-Conf. 96-008. 123-128 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] M.Igashira: "Measurements of keV-Neutron Capture gamma Rays of Fission Products(III)" JAERI-Conf. 97-005. 141-146 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] M.Igashira et al.: "Measurement of keV-Neutron Capture Cross Sections of Rare Earth Nuclides" Proc.Int.Conf.on Future Nuclear Systems : Global'97, Yokohama, 1997. vol.2. 1360-1364 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] 井頭政之: "Measurements of KeV-Neutron Capture Gamma Rays" NEA/NSC/DOC(95). 1. 269-280 (1995)

    • Related Report
      1996 Annual Research Report
  • [Publications] 井頭政之: "Measurements of KeV-Neutron Capture γ Rays of Fission Products" JAERI-Conf. 95-008. 129-132 (1995)

    • Related Report
      1996 Annual Research Report
  • [Publications] 井頭政之: "消滅処理研究のための中・低エネルギー中性子断面積の測定" JAERI-Conf. 95-017. 77-84 (1995)

    • Related Report
      1996 Annual Research Report
  • [Publications] 井頭政之: "Measurements of KeV-Neutron Capture γ Rays of Fission Products(II)" JAERI-Conf. 96-008. 123-128 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] 井頭政之: "Measurements of keV-Neutron Capture Gamma Rays" NEA/NSC/DOC(95). 1. 269-280 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] 井頭政之: "Measurements of keV-Neutron Capture γ Rays of Fission Products" JAERI-Conf. 95-008. 129-132 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] 井頭政之: "消滅処理研究のための中・低エネルギー中性子断面積の測定" JAERI-Conf. 95-017. 77-84 (1995)

    • Related Report
      1995 Annual Research Report

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Published: 1995-04-01   Modified: 2016-04-21  

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