Principle of single and multiple time interval analysis applicable to radioactive nuclides with half-lives of millisecond order
Principle of single and multiple time interval analysis applicable to radioactive nuclides with half-lives of millisecond order
复制标题
适用于毫秒级半衰期放射性核素的单次和多次时间间隔分析原理
DOI：
10.1007/bf02040731
复制
发表时间：
1992
影响因子：
1.6
通讯作者：
Y. Uezu
中科院分区：
文献类型：
--
作者：
T. Hashimoto;M. Noguchi;H. Washio;Y. Yamamoto;Y. Uezu
本文介绍了一种在微机上选择性提取半衰期为毫秒级的放射性核素的延迟符合方法。时间间隔分析基本上是基于相关事件和随机事件之间的时间间隔分布的区别，这些事件是由一定固定时间内的放射性衰变和/或背景事件引起的。从单时段分析和多时段分析（STA和MTA）的统计处理方面讨论了时间谱或时间分布曲线的理论函数。在一些理想数据的假设下，利用所得到的理论方程对时间谱进行了模拟，并与实验结果进行了比较。结果表明，MTA方法更适合于从随机事件或背景事件中选择性地提取目标相关事件，以寻找毫秒级核素。
A delayed coincidence method has been developed for the selective extraction of radionuclides with half-lives of millisecond order using a personal computer. The time interval analysis is fundamentally based on the distinction of the time interval distribution between the correlated and random events, which arise from radioactive disintegration and/or background events within a certain fixed time. Theoretical functions of a time spectrum or a time distribution curve were dealt with from aspects of statistical treatments consisting of a single time interval analysis and a multiple one (STA and MTA). The theoretical equations obtained were used to simulate time spectra on the assumption of some ideal data and compared with the experimental results. Conclusively, the MTA method has been verified to be more suitable for the selective extraction of the objective correlated events from random or background events for the search of radioactive nuclides with millisecond life-times.