【摘要】 取样容器是便携式惰性气体监测仪的重要组成部分。利用137Cs点源对取样容器的β粒子探测效率进行实验测量,经过数据处理得到了实验结果,然后利用MCNP软件进行了模拟计算。实验和模拟计算结果的比较和分析表明模拟计算结果与实验结果在误差范围内一致,为利用MCNP软件模拟计算惰性气体85Kr和133Xeβ能谱探测效率提供了重要依据。更多还原

【Abstract】 The sampling container is an important part of the portable noble gas monitor.We took an experimental measurement to get the β particles detection efficiency of sampling container by using 137Cs point source.After data processing,we got the experimental result,and then used the MCNP software to take a simulation.The comparison and analysis of experimental and simulation results shows that the simulation and experimental results are consistent within error.It provided an important basis for simulating the detection efficiency of the detector for β spectroscopy of noble gas 85Kr and 133Xe by using MCNP.更多还原