P-TReCK: A Monte Carlo software for real-time gamma-ray detector simulation and spectral analysis

IF 2.8 3区物理与天体物理 Q3 CHEMISTRY, PHYSICAL

Radiation Physics and Chemistry Pub Date : 2025-09-30 DOI:10.1016/j.radphyschem.2025.113347

Frederick C. Hila , Alvie A. Astronomo , Charlotte V. Balderas , Neil Raymund D. Guillermo , Alberto V. Amorsolo Jr. , Candy C. Mercado

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引用次数: 0

Abstract

This study presents P-TReCK (Photon Transport and Response Characterization Kit), a Windows-based Monte Carlo simulation software (available at https://gammaraysim.coe.upd.edu.ph/ptreck/) for simulating gamma-ray detector spectra with integrated real-time peak analysis. Currently focused on basic cylindrical detector geometries and supporting point and disk source configurations, P-TReCK is well suited for scintillation detectors such as NaI(Tl) and LaBr₃(Ce). It is built on the .NET Framework and utilizes the EPICS2023 photoatomic data library. The software employs a vectorized Monte Carlo approach to model photon interactions, including photoelectric absorption, Compton scattering, and pair production, and features an intuitive graphical user interface supporting spectral analysis, dose quantification, and visualization. Because P-TReCK employs a streamlined adjustable two-cell cylindrical detector geometry, it achieves substantial computational speedups. Qualitative spectra comparisons with MCNP5, PHITS, and DETMATS show good agreement in NaI(Tl) and LaBr₃(Ce) responses from 200 to 2500 keV, accurately reproducing key features. Quantitatively, full-energy peak efficiencies match MCNP5 within 0.6 % at 200 keV and 0.02 % at 600 keV for a 3” × 3″ NaI(Tl) detector, agree well with PHITS, and align closely with literature values. Overestimations reach 7.7 % at 1500 keV for the smallest 1.5” × 1.5” NaI(Tl) detector due to unmodeled bremsstrahlung, though this effect is minor below 1.5 MeV and especially with larger crystal sizes. By efficiently processing photons through its streamlined two-cell cylindrical transport model, P-TReCK provides a fast and accessible tool for calibration, virtual experiments, and education.

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P-TReCK：用于实时伽马射线探测器模拟和光谱分析的蒙特卡罗软件

本研究提出了P-TReCK（光子传输和响应表征工具包），这是一个基于windows的蒙特卡罗模拟软件（可在https://gammaraysim.coe.upd.edu.ph/ptreck/上获得），用于模拟具有集成实时峰分析的伽马射线探测器光谱。P-TReCK目前专注于基本的圆柱探测器几何形状和支持点和盘源配置，非常适合于NaI（Tl）和LaBr3（Ce）等闪烁探测器。它是建立在。. NET框架，并利用EPICS2023光电数据库。该软件采用矢量蒙特卡罗方法来模拟光子相互作用，包括光电吸收、康普顿散射和对产生，并具有直观的图形用户界面，支持光谱分析、剂量量化和可视化。由于P-TReCK采用了流线型可调双单元圆柱形探测器几何结构，因此实现了显著的计算速度提升。与MCNP5、PHITS和DETMATS的定性光谱比较表明，NaI（Tl）和LaBr3（Ce）的响应在200至2500 keV范围内具有良好的一致性，准确地再现了关键特征。在定量上，对于3“× 3″NaI（Tl）探测器，在200kev下，全能峰值效率与MCNP5匹配在0.6%以内，在600kev下匹配在0.02%以内，与PHITS非常吻合，并且与文献值密切一致。对于最小的1.5“× 1.5”NaI（Tl）探测器，由于未建模的轫致辐射，在1500 keV时高估达到7.7%，尽管这种影响在1.5 MeV以下很小，特别是在较大的晶体尺寸下。P-TReCK通过其流线型的双单元圆柱形传输模型有效地处理光子，为校准，虚拟实验和教育提供了快速且易于访问的工具。

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来源期刊

Radiation Physics and Chemistry 化学-核科学技术

CiteScore

5.60

自引率

17.20%

发文量

574

审稿时长

12 weeks

期刊介绍： Radiation Physics and Chemistry is a multidisciplinary journal that provides a medium for publication of substantial and original papers, reviews, and short communications which focus on research and developments involving ionizing radiation in radiation physics, radiation chemistry and radiation processing. The journal aims to publish papers with significance to an international audience, containing substantial novelty and scientific impact. The Editors reserve the rights to reject, with or without external review, papers that do not meet these criteria. This could include papers that are very similar to previous publications, only with changed target substrates, employed materials, analyzed sites and experimental methods, report results without presenting new insights and/or hypothesis testing, or do not focus on the radiation effects.