【摘要】 <正> 利用化学方法来测量混合场中的n、γ成分已有很多方法。其中,氯代烃体系较为普遍,但方法复杂,对器皿和试剂以及操作要求都比较高;四氯乙烯化学剂量计体系则不能用于500rad以下的测量;含硼与不含硼的硫酸亚铁体系也只能测量较高剂量。测量混合场中D_n、D_γ的方法多是使用“对”剂量计,即其中一个体系对中子不敏感而另一个体系对中子和γ射线都敏感的原理来测量。其计算D_n和D_γ公式为:更多还原

【Abstract】 This papar reports the posibility of using lyoluminescence of glucose and sodium chloride pair for dose determination.If the parameters Km, Kt, Hm and Ht are known, the following equations can be used to get Dn and Dγ in a mixed field, they are: Rt1=KtDn + HtDγ Ru1 = KmDn + HmDγ The respones (the lyoluminescence yield) of the glucose and the sodium chloride are proportional to the absorbed dose in a given dose range.Dn and Dγ of mixed field used for calibration have been measured with pair ionization chamber. The experiments have shown that Kt of the glucose is 0.304 and Km of the sodium chloride is 0.062, with Ht and Hn taking as 1.更多还原