| γ射线二极管寿命提升关键技术实验研究 |
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| 引用本文： | 孙江,胡杨,张金海,蔡丹,苏兆锋,赵博文,孙铁平,孙剑锋,呼义翔,彭士香.γ射线二极管寿命提升关键技术实验研究[J].原子能科学技术,2021,55(2):328-335. |
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| 作者姓名： | 孙江 胡杨 张金海 蔡丹 苏兆锋 赵博文 孙铁平 孙剑锋 呼义翔 彭士香 |
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| 作者单位： | 北京大学 物理学院 重离子物理研究所 核物理与核技术国家重点实验室，北京100871；西北核技术研究院 强脉冲辐射环境模拟与效应国家重点实验室，陕西 西安 710024； 清华大学 工程物理系，北京100084 |
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| 摘 要： | 本文通过分析γ射线二极管的物理过程，对二极管的阴阳极材料和结构进行了改进，并在强光一号装置上进行了实验验证。实验结果表明，通过采用深槽结构的黄铜阴极和多层阳极靶可显著降低强光一号装置二极管的阴极烧蚀、溅射沉积污染及阳极的热-力学损伤。改进后的阴极至少可重复使用3发次，阳极至少可重复使用4发次。实验结果为建设中的大面积脉冲γ射线辐射装置二极管的研制和实验效率提升提供了新技术途径。
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| 关 键 词： | γ射线二极管 热-力学损伤 溅射沉积污染 剂量率 辐射场分布 |
Experimental Research on Lifetime of γ-ray Diode for Reutilization |
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| SUN Jiang,HU Yang,ZHANG Jinhai,CAI Dan,SU Zhaofeng,ZHAO Bowen,SUN Tieping,SUN Jianfeng,HU Yixiang,PENG Shixiang.Experimental Research on Lifetime of γ-ray Diode for Reutilization[J].Atomic Energy Science and Technology,2021,55(2):328-335. |
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| Authors: | SUN Jiang HU Yang ZHANG Jinhai CAI Dan SU Zhaofeng ZHAO Bowen SUN Tieping SUN Jianfeng HU Yixiang PENG Shixiang |
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| Affiliation: | State Key Laboratory of Nuclear Physics and Technology, Institute of Heavy Ion Physics,School of Physics, Peking University, Beijing 100871, China;State Key Laboratory of Intense Pulsed Radiation Simulation and Effect,Northwest Institute of Nuclear Technology, Xi’an 710024, China;Department of Engineering Physics, Tsinghua University, Beijing 100084, China |
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| Abstract: | According to the physical property of γ-ray diode, the material and structure of electrode were developed and the new configuration of diode was explored on Qiangguang-Ⅰ facility. Experiment results show that the deeper-slot copper cathode and stacked tantalum anode effectively reduce cathode ablation, sputtering deposition pollution and anode thermal-dynamic damage. The lifetime-test experiment indicates that the deeper-slot copper cathode can be reused for 3 times and stacked tantalum anode can be reused for 4 times at least. All of these improvements can provide new technical ways for diode development and experimental efficiency of large area pulsed γ-ray radiation facility which is in construction. |
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| Keywords: | γ-ray diode thermal-dynamic damage sputtering deposition pollution dose rate radiation field distribution |
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