【摘要】 本文介绍了为在中子、γ混合场中进行辐射剂量、微剂量和放射生物实验测量而建立的一套监测系统。它由总剂量监测器、γ剂量监测器和辐射束质监测器三部分组成。给出了各监测器的灵敏度、能量响应、方向性、稳定性等主要性能及监测实例。结果表明,此系统基本上能满足上述几种测量的要求。更多还原

【Abstract】 A monitoring system for measurements in dos imetry,microdosimetry and irradiation of biological samples in mixed field ofneutrons and γ-rays is introduced.It is consisted of a total dose monitor——a disc-shaped,tissue-equivalent plastic wall ionization chamber,γ-raySdose monitor——a Geiger-Mǖller counter,and a beam quality monitor——three BF₃ counters embedded in a block of polymethylmethacrylate.Theprincipal performances of the monitors,such as sensitivity,energr response,directional dependence,stability,and some examples in practical applicationare given.The results show that the system is basically satisfactory for themonitoring measurements mentioned above.更多还原