BR-J4000型热释光个人剂量计对不同射的能量响应及能量鉴别研究

The researches of response of BR-JBR-J4000 thermoluminescence personal dosimeter irradiated by different energy and energy discrimination

目的:探讨BR-J4000型个人剂量计不同位置探测器读数比值与射线能量之间的相关性。方法:将已筛选退火后的探测器片放于剂量计盒的所有位置,分别予以入射角为0°下的不同能量的照射,通过分析探测器读数最大值与最小值的比值,探讨其与辐照能量之间的关系和规律。结果:入射角为0°下的不同能量的射线照射,无过滤槽体位置探测器的读数为最大值,H_p(10)位置的探测器为最小值,两者读数之比与能量的关系具有相关性。结论:应用BR-J4000型剂量计"无过滤槽体位置/H_p(10)位置"探测器计数的比值,有可能获得辐照的射线性质、能量范围等资料,获得更为准确的剂量检测结果。

Objective:To study the relationship between the ratio of count values of different positions in BR-J4000 thermoluminescence personal dosimeter and the energy of the rays. Method:To put the detectors which have been chosen and annealed in all positions of personal dosimeter, and give the irradiation of different energy. Then to study the relationship and rule between the ratio of the count values of Max/Min and the energy of the rays. Results:Under the irradiation of different energy, the count value of the position of no filter is the maximum, and the count value of the H_p(10)is the minimum. The relationship between the energy of rays and the ratio of the count values of Max and Min has significant statistical significance. Conclusions:Using the ratio of count values of the position of no filter and H_p(10)of BR-J4000 personal dosimeter, information about the rays characteristic and energy range and more accurate dose test results could be acquired.