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    • 8. 发明授权
    • Resonance calculation program and analyzing apparatus
    • 共振计算程序和分析仪器
    • US08837663B2
    • 2014-09-16
    • US12975941
    • 2010-12-22
    • Hiroki KoikeKazuya YamajiDaisuke SatoShinobu TsubotaHideki Matsumoto
    • Hiroki KoikeKazuya YamajiDaisuke SatoShinobu TsubotaHideki Matsumoto
    • G21C17/00G21C17/108G21D3/00
    • G21D3/001G21C17/108Y02E30/40
    • [Solving Means] A resonance calculation program is configured to calculate an effective cross section including Step S4 of setting a calculation point in the gray range in the resonance region; Step S5 of calculating a neutron flux set at the calculation point and corresponding to a macroscopic cross section based on Method of Characteristics; Step S6 of fitting a fitting equation to the calculated macroscopic cross section and the calculated neutron flux, and calculating first and second rational coefficients; Step S7 of calculating a background cross section based on the first rational coefficient; Step S8 of interpolating the effective cross section, with the background cross section used as an argument; Step S9 of calculating the neutron flux based on the background cross section; and Step S10 of calculating the effective cross section based on the effective cross section, the neutron flux, and the second rational coefficient obtained at the coefficient calculation step.
    • [解决方案]共振计算程序被配置为计算包括在共振区域中设置灰度范围中的计算点的步骤S4的有效截面; 基于特征方法计算在计算点设置的中子通量并对应于宏观横截面的步骤S5; 将拟合方程拟合到计算的宏观横截面和计算的中子通量的步骤S6,并计算第一和第二有理系数; 基于第一理性系数计算背景横截面的步骤S7; 内插有效截面的步骤S8,以背景横截面作为参数; 基于背景横截面计算中子通量的步骤S9; 以及基于在系数计算步骤中获得的有效截面,中子通量和第二有理系数来计算有效截面的步骤S10。
    • 9. 发明授权
    • Resonance calculation program and analyzing apparatus
    • 共振计算程序和分析仪器
    • US08583376B2
    • 2013-11-12
    • US13195355
    • 2011-08-01
    • Hiroki KoikeHideki MatsumotoKazuya YamajiDaisuke SatoShinobu Tsubota
    • Hiroki KoikeHideki MatsumotoKazuya YamajiDaisuke SatoShinobu Tsubota
    • G06F19/00
    • G21D3/001G21C17/063G21D2003/002G21D2003/004Y02E30/40
    • [Problem to be Solved] To provide a resonance calculation program capable of evaluating a physical quantity such as an effective cross section in a radial direction of a circular region of a fuel rod by making a resonance calculation based on the equivalence principle.[Solution] A resonance calculation program for calculating an effective cross section by performing a resonance calculation based on an equivalence principle includes a radial-distribution calculation step S8 of calculating a distribution of the effective cross section in a radial direction of a circular region by calculating the effective cross section defined by a predetermined calculation expression including a geographical coefficient for each of a plurality of annular regions while a neutron escape probability in a resonance region is expressed by a polynomial rational expression including the geographical coefficient serving as a factor representing geographical shapes of a plurality of annular regions that are circumferentially annular and that are obtained by radially dividing the circular region that is an axial cross section of a fuel rod at predetermined intervals.
    • [待解决的问题]提供一种能够通过基于等效原理进行共振计算来评价燃料棒的圆形区域的径向方向上的有效截面的物理量的共振计算程序。 [解决方案]通过基于等效原理执行谐振计算来计算有效截面的共振计算程序包括:径向分布计算步骤S8,其计算圆形区域的径向方向上的有效截面的分布, 包括用于多个环形区域中的每一个的地理系数的预定计算表达式限定的有效横截面,而在谐振区域中的中子逃逸概率由多项式理性表达式表示,该多项式理性表达式包括用作表示地理形状 多个环形区域,其周向环形,并且通过以预定间隔径向分割作为燃料棒的轴向截面的圆形区域获得。
    • 10. 发明申请
    • RESONANCE CALCULATION PROGRAM AND ANALYZING APPARATUS
    • 共振计算和分析装置
    • US20120215444A1
    • 2012-08-23
    • US13195355
    • 2011-08-01
    • Hiroki KoikeHideki MatsumotoKazuya YamajiDaisuke SatoShinobu Tsubota
    • Hiroki KoikeHideki MatsumotoKazuya YamajiDaisuke SatoShinobu Tsubota
    • G06F19/00
    • G21D3/001G21C17/063G21D2003/002G21D2003/004Y02E30/40
    • [Problem to be Solved] To provide a resonance calculation program capable of evaluating a physical quantity such as an effective cross section in a radial direction of a circular region of a fuel rod by making a resonance calculation based on the equivalence principle.[Solution] A resonance calculation program for calculating an effective cross section by performing a resonance calculation based on an equivalence principle includes a radial-distribution calculation step S8 of calculating a distribution of the effective cross section in a radial direction of a circular region by calculating the effective cross section defined by a predetermined calculation expression including a geographical coefficient for each of a plurality of annular regions while a neutron escape probability in a resonance region is expressed by a polynomial rational expression including the geographical coefficient serving as a factor representing geographical shapes of a plurality of annular regions that are circumferentially annular and that are obtained by radially dividing the circular region that is an axial cross section of a fuel rod at predetermined intervals.
    • [待解决的问题]提供一种能够通过基于等效原理进行共振计算来评价燃料棒的圆形区域的径向方向上的有效截面的物理量的共振计算程序。 [解决方案]通过基于等效原理执行谐振计算来计算有效截面的共振计算程序包括:径向分布计算步骤S8,其计算圆形区域的径向方向上的有效截面的分布, 包括用于多个环形区域中的每一个的地理系数的预定计算表达式限定的有效横截面,而在谐振区域中的中子逃逸概率由多项式理性表达式表示,该多项式理性表达式包括用作表示地理形状 多个环形区域,其周向环形,并且通过以预定间隔径向分割作为燃料棒的轴向截面的圆形区域获得。