Institute of Atomic Energy, National Nuclear Center of Republic of Kazakhstan, Kurchatov, Kazakhstan.
Department of Physics, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran.
Appl Radiat Isot. 2021 Aug;174:109748. doi: 10.1016/j.apradiso.2021.109748. Epub 2021 Apr 29.
A standard procedure for characterizing the high-purity germanium detector (HPGe), manufactured by Canberra Industries Inc., is performed directly by the company using patented methods. However, the procedure is usually expensive and must be repeated because the characteristics of the HPGe crystal changes over time. In this work, the principles of a technique for use in obtaining and optimizing the detector characteristics based on a cost-effective procedure in a standard research laboratory were developed. The technique required the geometrical parameters of the detector to be determined as precisely as possible by the Monte Carlo method in parallel with the optimization process based on evolutionary algorithms. The development of this approach facilitated the modeling of the HPGe detector as a standardized procedure. The results would be also beneficial in the development of gamma spectrometers and/or their calibrations before routine measurements.
由堪培拉工业公司（Canberra Industries Inc.）制造的高纯锗探测器（HPGe）的标准特性描述程序是由该公司直接使用专利方法执行的。然而，该程序通常很昂贵，并且必须重复进行，因为 HPGe 晶体的特性会随时间发生变化。在这项工作中，开发了一种基于经济有效的标准研究实验室程序来获取和优化探测器特性的技术原理。该技术要求通过蒙特卡罗方法尽可能精确地确定探测器的几何参数，并结合基于进化算法的优化过程。这种方法的发展促进了 HPGe 探测器的建模作为标准化程序。该方法的结果也将有助于伽马谱仪的开发和/或其在常规测量之前的校准。
