Performance Evaluation of a High-Sensitivity Tritium Gas Monitor Using a Pulse-Shaping Analyzer
Performance Evaluation of a High-Sensitivity Tritium Gas Monitor Using a Pulse-Shaping Analyzer
复制标题
使用脉冲整形分析仪评估高灵敏度氚气监测仪的性能
DOI：
10.13182/fst08-a1793
复制
发表时间：
2008
影响因子：
0.9
通讯作者：
T. Uda
中科院分区：
文献类型：
--
作者：
Takao Kawano;T. Yamano;K. Yamada;Masahiro Tanaka;Y. Asakura;T. Uda
摘要应用脉冲波形分析等技术研制了一种氚气监测仪。最佳的分析仪值确定的参数，如偏置（电压）施加到检测器，计数气体的流速，和混合比的样品空气计数气体使用封闭的氚参考源。在应用这些优化参数后，通过使用氚化甲烷气体进行实验来确定用于将计数率转换为氚浓度的因子。最后根据转换因子确定了该监测仪对含氚空气样品的检出限。
Abstract A tritium gas monitor was developed by applying several techniques including pulse shape analysis. The optimum analyzer values were determined for parameters such as the bias (voltage) applied to the detector, counting gas flow rate, and mixing ratio of sample air to counting gas using an enclosed tritium reference source. After applying these optimized parameters, the factor for converting counting rate to tritium concentration was determined by conducting an experiment using tritiated methane gas. Finally, the detection limit of the monitor for air samples containing tritium was determined based on the conversion factor.