被动式活性炭氡采样器扩散控制管设计参数的选择  

SELECTION OF DESIGN PARAMETERS OF DIFFUSION BARRIER IN A PASSIVE ^(222)Rn SAMPLER BASED ON ACTIVATED CHARCOAL ADSORPTION

作　　者：魏素遐[1] 

机构地区：[1]中国辐射防护研究院

出　　处：《辐射防护》1992年第3期229-234,共6页Radiation Protection

摘　　要：本文介绍被动式活性炭氡采样器扩散控制管设计参数的选择方法。通过对活性炭吸附氡量与暴露时间的关系式的线性化处理,选择了适当的扩散控制管的参数,可以大大减小温度对测量结果的影响,同时可保持探测器有较高的灵敏度。This paper describes a methed concerning selection of design parametes of diffusion barrierin a passive ^(222)Rn sampler based on activated charcoal adsorption.The proper parameter value of diffu-sion barrier is obtained by means of linearization of ^(222)Rn adsorption versus the exposure time.Thus,the influence of temperature on measured results may be greatly decreased,and higher sensitivity of thedetector may be maintained.

关 键 词：氡 采样器 扩散控制管 参数 活性炭 

分 类 号：X837.01[环境科学与工程—环境工程]