摘要
本文从β衰变的两个氡子体（ＲａＢ和ＲａＣ）对平衡当量氧浓度的贡献占９０％出发，提出了探测β从而监测氡及其子体的新三段法。β测量仪不仅能作为氡及其子体监测仪，而且还能作环境中β放射性气溶胶监测。目前β测量仪在国内、外已相当普及，本方法进一步发掘了现有仪器的潜力，实现了一机多用。
Upto now,radon and its short-lived decay products in air are monitored usually by meansof a detection. But, radon daughters RaB and RaC which are βemitters contribute about 90%for equiliberium equivalent radon concentration(EECRn).Therefore,this paper advances anew three-count technique by a βdetector. And it can be used as not only a unit of radon andits daughters,but also a monitoning of βairborne activity in environment.Right now,β(evenlow level βunits have populariZed fairly in internal and external.For this reason,this newmethod gives full pay to the potential of present unit, and realizes multiple uses for a unit. (
出处
《核电子学与探测技术》
CAS
CSCD
北大核心
1994年第6期361-362,366,共3页
Nuclear Electronics & Detection Technology
关键词
氡
空气
氡子体
气溶胶
Radon and its short-lived decay products α-emitter β-emitter Equi-librium equivalent radon concentration(EECRn))
