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中子辐照量指数分布函数式中比例系数的确定 被引量:2

Determination of Cofficient in Exponential Expression of Neutron Exposure Distribution
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摘要 讨论如何确定中子辐照量分布函数ρ(τ)=C_1(1-r)/△τr^(τ/△τ)=C_2/τ_0exp(-τ/τ_0)中的比例系数C_1和C_2的值。结果表明,C_1由归一化条件确定,通常取为1。但是C_2≠C_1,C_2/C_1的值完全由重叠因子r的值确定,即r=1时,C_2/C_1=1;0<r<1时,C_2/C_1=(r-1)/Inr。进一步的讨论还表明,0<r<1时,C_2/C_1小于1且随r增大而增大。 We discuss how to determine the coefficient C1 and C2 in the expression of neutron exposure distribution ρ(τ) = C1 (1- r)/△τrr/△r = C2/τoexp( -τ/τ0). The results show that C1 is determined by the normalization condition and generally taken as 1. And C2≠C1 ,C2/C1 is completely determined by the overlap factor r,i. e. ,C2/ C1 =1 when r=1 and C2/C1 =(r-1)/lnr when 0<r<1. The further discussion argues that when 0<r<1.C2/ C1 is less than 1 and increases with r.
作者 张凤华 张波
出处 《河北科技大学学报》 CAS 2003年第3期7-9,53,共4页 Journal of Hebei University of Science and Technology
基金 国家自然科学基金(19973002)
关键词 慢中子俘获过程 中子辐照量 分布函数 比例系数 AGB星 核合成 重叠因子 AGB stars nucleosynthesis distribution of neutron exposures
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参考文献5

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同被引文献14

  • 1张凤华,张波.AGB星s-过程核合成:中子辐照量渐近分布[J].河北科技大学学报,2004,25(4):11-14. 被引量:2
  • 2马文娟,周贵德,张波.极贫金属星元素丰度及Ⅱ型超新星核合成产量[J].天文研究与技术,2007,4(2):95-101. 被引量:2
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