中子个人剂量计少道解谱初探  

Preliminary Study of Few-channel Unfolding for Neutron Personal Dosimeter

作　　者：刘琼瑶[1] 李桃生[1] 杨国召 颜强[1] 宫存溃[1] 董良[1] 

机构地区：[1]哈尔滨工程大学核科学与技术学院,黑龙江哈尔滨150001

出　　处：《原子能科学技术》2013年第11期2156-2160,共5页Atomic Energy Science and Technology

摘　　要：针对中子辐射场所工作人员所受剂量评估结果偏差较大的问题,提出了用少道解谱方法来估算中子个人剂量当量。为检验该方法的有效性,本工作以已设计好的热释光个人剂量计(TLD)为研究对象,使用蒙特卡罗程序MCNP计算31个单能点的中子单位注量能量响应,通过Lagrange线性插值求得2×58响应矩阵,并利用MXD-FC31和GRV-FC31两种少道解谱软件分析了单能中子情况下的剂量估算问题。结果表明,少道解谱方法对中子个人剂量当量合理评价是可行的。Few-channel unfolding method was used for estimating the neutron personal dose equivalent in this paper because there is large deviation of estimating the occupa- tional exposure in the workplace. Neutron energy response of 31 monoenergetic points was calculated by MCNP for the designed TLD. The response matrixes were obtained by using Lagrange linear interpolation and the dose estimation was analyzed by using the few-channel unfolding softwares of MXD-FC31 and GRV-FC31. The results show that the few-channel unfolding method is practicable for the reasonable evaluation of neutron personal dose equivalent.

关 键 词：个人剂量当量 少道解谱 热释光个人剂量计 

分 类 号：TL816[核科学技术—核技术及应用]