期刊论文

Development of Novel Continuous Radon Monitor

Xiao, D.-T.

中文

核电子学与探测技术

0258-0934

2015

35

12

1246-1250

10.3969/j.issn.0258-0934.2015.12.021

国家自解科学基金（11475082;11275096）； 核与辐射安全监督管理技术支持（2014HBB03）资助；

本校为其他机构

为实现快速可靠连续测氡需要,基于静电收集法研制了一种新型连续测氡仪.该测量仪采用PIPS探测器对218Po产生的α粒子能量进行甑别,采用阈值自动调节方法消除温度对半导体探测器能谱峰的影响,采用温湿度自动补偿修正方法消除湿度对探测效率的影响,采用大流量取样和迭代修正方法实现可靠快速测量.测试结果表明：新型连续测氡仪10个连续测量周期的测量结果相对平均偏差在5％以内,能够快速响应氡浓度的变化,适应0 ～ 45℃环境温度的需要,经-20℃低温储存实验后该测氡仪能正常工作.

In order to measure radon rapidly and reliably, the continuous radon monitor which based on electrostatic collection method was developed. The α-particles energy released from 218Po was discriminated by PIPS detector and three single channels. Temperature's effect on the photo-peak efficiency of semiconductor detector was eliminated by using the threshold automatic adjustment method, and humidity's effect on the detection efficiency was eliminated by the temperature/ humidity self-compensation method. Meanwhile, the rapid and reliable measurem...