Calculational Method of One-Group Nuclear Constants in Nuclear Equilibrium State

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The conventional one-group nuclear data sets for the nuclear equilibrium state are not consistent with the equilibrium nuclide densities, and may contain considerable errors.<BR>An equilibrium cell iterative calculation system (ECICS) has been developed to obtain the consistent neutron spectrum, one-group constant set and nuclide number densities which characterize the nuclear equilibrium state. This system employs an iterative calculation scheme combining cell neutron transport calculation and equilibrium nuclide density calculation. In ECICS, a two-step iterative method and transferred data manipulation are contrived to ensure and accelerate the convergence. Some results obtained by ECICS are compared with the results obtained with cross section sets for fresh fuel conditions to show the efficiency of ECICS.

収録刊行物

  • Journal of nuclear science and technology  

    Journal of nuclear science and technology 34(6), 596-602, 1997-06-25 

    Atomic Energy Society of Japan

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各種コード

  • NII論文ID(NAID)
    10002077412
  • NII書誌ID(NCID)
    AA00703720
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    00223131
  • NDL 記事登録ID
    4240107
  • NDL 雑誌分類
    ZM35(科学技術--物理学)
  • NDL 請求記号
    Z53-A460
  • データ提供元
    CJP書誌  CJP引用  NDL  J-STAGE 
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