ABSTRACT In this work, some ‘equivalent’ models for the simulation of efficiency response of a High-Purity Germanium (HPGe) detector, installed inside a ‘low background’ bunker in the Engineering Department of the University of Palermo, were developed. The main feature was to attribute the uncertainties of the model to only one of the parameters, the dead layer of the detector, keeping unchanged the other data provided by the manufacturer. With this technique, using the Monte Carlo PENELOPE code in the 2011 version, the efficiency response was evaluated and compared with the previous one performed with MCNP5 code. The validation of equivalent models is performed by comparing the simulation results with that of experimental spectrometric measurements of calibrated point sources and characterized volumetric sources such as a Marinelli beaker and an air filter reduced to a ‘packet-sample’. The use of equivalent models makes the evaluation of efficiency curves with a Monte Carlo code easier and faster, and requires only a few experimental values for validation.

中文翻译：

---

用 PENELOPE 代码模拟 HPGe 探测器效率响应的等效探测器模型

摘要 在这项工作中，开发了一些“等效”模型，用于模拟安装在巴勒莫大学工程系“低背景”掩体内的高纯锗 (HPGe) 探测器的效率响应。主要特点是将模型的不确定性仅归因于其中一个参数，即探测器的死层，而制造商提供的其他数据保持不变。通过这种技术，使用 2011 版中的 Monte Carlo PENELOPE 代码，评估了效率响应，并与之前使用 MCNP5 代码执行的响应进行了比较。等效模型的验证是通过将模拟结果与校准点源和特征体积源（如马里内利烧杯和减少为“包样本”的空气过滤器）的实验光谱测量的结果进行比较来进行的。等效模型的使用使得使用 Monte Carlo 代码评估效率曲线变得更容易和更快，并且只需要几个实验值进行验证。