Model and simulation of quenching effects on the shape of a tritium β− in a liquid scintillation counting
Model and simulation of quenching effects on the shape of a tritium β− in a liquid scintillation counting
复制标题
液体闪烁计数中氚β−形状淬灭效应的模型与模拟
DOI：
10.1016/s0010-4655(99)00505-6
复制
发表时间：
2000
影响因子：
6.3
通讯作者：
A. Chambaudet
中科院分区：
文献类型：
--
作者：
B. Ravat;H. Chapelotte;M. Grivet;A. Chambaudet
本文提出了一种评价双光电倍增管符合工作方式下液体闪烁计数系统测量β−氚时谱形修正的方法。在这项研究中，我们考虑了检测几何系统和化学猝灭效应使用Stern-Volmer方程。已经开发的代码是基于检测概率与立体角检测和使用荧光方程的澄清剂有机化合物的发射速率。蒙特卡洛模拟方法的使用允许对系统进行统计模拟。最后，将理论计算结果与用CCl 4淬灭的~ 3 H标准样品的液体闪烁计数器测量结果进行了比较。
This paper presents a method to evaluate the spectrum shape modifications for β−tritium measured in liquid scintillation counting system with two photomultipliers working in coincidence mode. In this study, we have taken into account the detection geometry system and the chemical quenching effects using the Stern–Volmer equations. The code that has been developed is based on the detection probability versus the solid angle detection and the emission rate of scintillant organic compounds using fluorescence equations. The use of a Monte Carlo simulation method has allowed for a statistical simulation of the system to be performed. Finally, the theoretical results computed were compared with experimental data obtained with3H standards quenched by CCl4using a liquid scintillation counter.