摘要
介绍了一种可携式介质表面氡析出率仪 ,该仪器用静电收集探测室对氡衰变的 2 18Po所释放的 α粒子脉冲计数进行测量。用 φ5 0 mm金硅面垒探测器 ,计数容量 999999,测量范围 10 -5～ 10 2 Bq/ m2·s。仪器有两种工作方式以适应高低不同析出率范围的选择测量 ,可改变参数设置 ,计数自动显示 。
A measuring apparatus for measurement of medium surface radon exhalation rate is illustrated. The author uses the detection chamber with electrostatic collection to measure the particle pulse counting emitted by the clecaying 218 Po of radon. The apparatus is composed of aprode with a surface barrier semiconductor detector and a collecting chamber. The value ranges from 10 -5 ～10 2Bq/m 2·s . The radon exhalation rate displays on 6 digit LEDs . There are two working modes for the low or high medium surface radon exhalation rate, and their parameters can be changed. The characteristics are small volume, high sensitivity, non noise, fast response, easily operation, and automatic display, print, memory.
出处
《核电子学与探测技术》
CAS
CSCD
北大核心
2002年第2期149-151,共3页
Nuclear Electronics & Detection Technology
