Studies of H ions irradiation damage of CdTe crystal detector

IF 6.1 2区材料科学 Q1 MATERIALS SCIENCE, COATINGS & FILMS Surface & Coatings Technology Pub Date : 2025-02-01 Epub Date: 2025-01-12 DOI:10.1016/j.surfcoat.2025.131776

Meng Cao , Zexin Wang , Weifan He , Zhenzhao Zhang , Qingzhi Hu , Liying Sun , Jian Huang , Linjun Wang

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Abstract

CdTe has a wide range of applications in nuclear radiation detectors. However, it will be seriously damaged by irradiation in space and easily lead to device failure. This article primarily focuses on using two software packages in SRIM (Stopping and Range of Ions in Matter) to simulate and study the irradiation damage of CdTe materials. The penetration abilities of irradiated H ions, He ions, and Ar ions inside CdTe crystals were studied firstly. And H ions were selected because of its irradiation damage was distributed wholely inside CdTe crystals. Then, the ion irradiation depth, ion distribution position, and vacancy generation under various energy and dose of H ions were studied. And ²⁴¹Am energy spectrum responses and charge induction efficiency (CIE) of CdTe detectors influenced by H ion irradiation were investigated. The research results are contributive to improve the application of CdTe detectors in the filed of nuclear radiation detection.

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碲化镉晶体探测器H离子辐照损伤研究

碲化镉在核辐射探测器中有着广泛的应用。但在太空中受到辐照会严重损坏，容易导致器件失效。本文主要利用SRIM中的两个软件包（stop and Range of Ions in Matter）对CdTe材料的辐照损伤进行模拟和研究。首先研究了辐照后的H离子、He离子和Ar离子在CdTe晶体内的穿透能力。选择H离子是因为其辐照损伤全部分布在CdTe晶体内部。然后，研究了不同能量和剂量H离子辐照深度、离子分布位置和空位生成情况。研究了H离子辐照对CdTe探测器241Am能谱响应和电荷感应效率（CIE）的影响。研究结果有助于提高碲化镉探测器在核辐射探测领域的应用。

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来源期刊

Surface & Coatings Technology 工程技术-材料科学：膜

CiteScore

10.00

自引率

11.10%

发文量

921

审稿时长

19 days

期刊介绍： Surface and Coatings Technology is an international archival journal publishing scientific papers on significant developments in surface and interface engineering to modify and improve the surface properties of materials for protection in demanding contact conditions or aggressive environments, or for enhanced functional performance. Contributions range from original scientific articles concerned with fundamental and applied aspects of research or direct applications of metallic, inorganic, organic and composite coatings, to invited reviews of current technology in specific areas. Papers submitted to this journal are expected to be in line with the following aspects in processes, and properties/performance: A. Processes: Physical and chemical vapour deposition techniques, thermal and plasma spraying, surface modification by directed energy techniques such as ion, electron and laser beams, thermo-chemical treatment, wet chemical and electrochemical processes such as plating, sol-gel coating, anodization, plasma electrolytic oxidation, etc., but excluding painting. B. Properties/performance: friction performance, wear resistance (e.g., abrasion, erosion, fretting, etc), corrosion and oxidation resistance, thermal protection, diffusion resistance, hydrophilicity/hydrophobicity, and properties relevant to smart materials behaviour and enhanced multifunctional performance for environmental, energy and medical applications, but excluding device aspects.