摘要
详细介绍了一种用于绝对测量220Rn的结构特殊的ZnS(Ag)小闪烁室。并进行了测氡比对实验,得到它对222Rn/220Rn及其子体的探测效率可达到96%以上。通过串接此闪烁室测量管道气体流量,与标准流量计的测量结果比较,误差在5%以内。
A special structure small scintillation cell of absolute measurement ()^(220)Rn is described. The detection efficiency measuring ()^(222)Rn /()^(220)Rn and their daughters is above 96%. Compairing the flow rate in a pipe measured with a standard flow meter and with two small scintillation cell in series, the error is <5%. So the small scintillation cell can be used for absolute measurement ()^(220)Rn.
出处
《核电子学与探测技术》
CAS
CSCD
北大核心
2005年第3期305-308,共4页
Nuclear Electronics & Detection Technology
基金
国家自然科学基金资助项目(10275031)
