Growth and characterization of SrCl2 crystal for fast neutron spectroscopy

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

Radiation Physics and Chemistry Pub Date : 2025-06-04 DOI:10.1016/j.radphyschem.2025.113009

Nguyen Duy Quang , Phan Bao Quoc Hieu , H.J. Kim

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引用次数: 0

Abstract

Chlorine-based scintillators with pulse shape discrimination capability are becoming attractive in the community due to their potential application in fast neutron spectroscopy. In this study, a pure SrCl₂ crystal was grown using the Bridgman method and characterized for its fast neutron detection via ³⁵Cl(n,p)³⁵S and ³⁵Cl(n,α)³²P reactions. The difference in the scintillation decay time under gamma and alpha irradiation was investigated using ¹³⁷Cs and ²⁴¹Am sources. Consequently, using pulse shape discrimination techniques, the proton and alpha particles from neutron capture reactions were detected and separated from background gamma signals. The SrCl₂ also exhibited a good energy resolution of about 5.4 % at 662 keVee. Other scintillation properties, such as emission spectrum, light yield, and nonproportionality, are also measured and reported in this study. Overal, the SrCl₂ crystal can be a candidate for fast neutron spectroscopy applications.

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SrCl2晶体的生长与快中子光谱表征

具有脉冲形状识别能力的氯基闪烁体由于其在快中子能谱学中的潜在应用而受到了广泛的关注。本研究采用Bridgman法生长了一种纯SrCl2晶体，并通过35Cl(n,p)35S和35Cl(n,α)32P反应对其进行了快中子探测。用137Cs和241Am源研究了γ和α辐照下闪烁衰减时间的差异。因此，利用脉冲形状识别技术，从中子捕获反应中检测到质子和α粒子，并从背景伽马信号中分离出来。SrCl2在662 keee时也表现出良好的能量分辨率，约为5.4%。其他闪烁特性，如发射光谱、光产率和非比例性，也在本研究中进行了测量和报告。总之，SrCl2晶体可以作为快中子光谱应用的候选材料。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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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.