Design of hadronic calorimeter for DarkSHINE experiment

IF 3.6 1区物理与天体物理 Q1 NUCLEAR SCIENCE & TECHNOLOGY

Nuclear Science and Techniques Pub Date : 2024-08-28 DOI:10.1007/s41365-024-01502-5

Zhen Wang, Rui Yuan, Han-Qing Liu, Jing Chen, Xiang Chen, Kim Siang Khaw, Liang Li, Shu Li, Kun Liu, Qi-Bin Liu, Si-Yuan Song, Tong Sun, Xiao-Long Wang, Yu-Feng Wang, Hai-Jun Yang, Jun-Hua Zhang, Yu-Lei Zhang, Zhi-Yu Zhao, Chun-Xiang Zhu, Xu-Liang Zhu, Yi-Fan Zhu

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引用次数: 0

Abstract

The sensitivity of the dark photon search through invisible decay final states in low-background experiments relies significantly on the neutron and muon veto efficiencies, which depend on the amount of material used and the design of the detector geometry. This paper presents the optimized design of the hadronic calorimeter (HCAL) used in the DarkSHINE experiment, which is studied using a GEANT4-based simulation framework. The geometry is optimized by comparing a traditional design with uniform absorbers to one that uses different thicknesses at different locations on the detector, which enhances the efficiency of vetoing low-energy neutrons at the sub-GeV level. The overall size and total amount of material used in the HCAL are optimized to be lower, owing to the load and budget requirements, whereas the overall performance is studied to satisfy the physical objectives.

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设计用于 DarkSHINE 实验的强子量热计

在低背景实验中，通过不可见衰变终态进行暗光子搜索的灵敏度在很大程度上取决于中子和μ介子的否决效率，而这取决于所用材料的数量和探测器几何形状的设计。本文介绍了用于 DarkSHINE 实验的强子量热计（HCAL）的优化设计，并使用基于 GEANT4 的模拟框架对其进行了研究。通过比较使用均匀吸收体的传统设计和在探测器不同位置使用不同厚度的设计，对几何形状进行了优化，从而提高了否决亚 GeV 级低能中子的效率。由于负载和预算的要求，HCAL 的总体尺寸和所用材料总量被优化为更低，而总体性能的研究则是为了满足物理目标。

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

Nuclear Science and Techniques 物理-核科学技术

CiteScore

5.10

自引率

39.30%

发文量

141

审稿时长

5 months

期刊介绍： Nuclear Science and Techniques (NST) reports scientific findings, technical advances and important results in the fields of nuclear science and techniques. The aim of this periodical is to stimulate cross-fertilization of knowledge among scientists and engineers working in the fields of nuclear research. Scope covers the following subjects: • Synchrotron radiation applications, beamline technology; • Accelerator, ray technology and applications; • Nuclear chemistry, radiochemistry, radiopharmaceuticals, nuclear medicine; • Nuclear electronics and instrumentation; • Nuclear physics and interdisciplinary research; • Nuclear energy science and engineering.