EPJ Web of Conferences (Jan 2017)

Research and development for accuracy improvement of neutron nuclear data on minor actinides

  • Harada Hideo,
  • Iwamoto Osamu,
  • Iwamoto Nobuyuki,
  • Kimura Atsushi,
  • Terada Kazushi,
  • Nakao Taro,
  • Nakamura Shoji,
  • Mizuyama Kazuhito,
  • Igashira Masayuki,
  • Katabuchi Tatsuya,
  • Sano Tadafumi,
  • Shibahara Yuji,
  • Takahashi Yoshiyuki,
  • Takamiya Koichi,
  • Pyeon Cheol Ho,
  • Fukutani Satoshi,
  • Fujii Tosiyuki,
  • Hori Jun-ichi,
  • Yashima Hiroshi

DOI
https://doi.org/10.1051/epjconf/201714611001
Journal volume & issue
Vol. 146
p. 11001

Abstract

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To improve accuracy of neutron nuclear data on minor actinides, a Japanese nuclear data project entitled “Research and development for Accuracy Improvement of neutron nuclear data on Minor ACtinides (AIMAC)” has been implemented. Several independent measurement techniques were developed for improving measurement precision at J-PARC/MLF/ANNRI and KURRI/LINAC facilities. Effectiveness of combining the independent techniques has been demonstrated for identifying bias effects and improving accuracy, especially in characterization of samples used for nuclear data measurements. Capture cross sections and/or total cross sections have been measured for Am-241, Am-243, Np-237, Tc-99, Gd-155, and Gd-157. Systematic nuclear data evaluation has also been performed by taking into account the identified bias effect. Highlights of the AIMAC project are outlined.