欢迎访问《核聚变与等离子体物理》官方网站,今天是 分享到:

核工业西南物理研究院 ›› 2023, Vol. 43 ›› Issue (3): 324-331.DOI: 10.16568/j.0254-6086.202303012

• 等离子体物理 • 上一篇    下一篇

二维硬 X 射线探测器自动标定平台研究 

郑盈盈 1, 2,林士耀*1, 3,吴国斌 4 ,赵金龙 1 ,张继宗 1 , 周润晖 1, 2,李 强 1, 2,曹宏睿 1 ,袁旗平 1 ,肖炳甲 1   

  1. (1. 中国科学院等离子体物理研究所,合肥 230031; 2. 中国科学技术大学研究生院科学岛分院,合肥 230026; 3. 合肥综合性国家科学中心能源研究院,合肥 230031; 4. 合肥工业大学电子科学与应用物理学院,合肥 230009) 
  • 收稿日期:2021-07-20 修回日期:2022-12-19 出版日期:2023-09-15 发布日期:2023-09-04
  • 作者简介:郑盈盈(1985−),女,安徽无为人,博士研究生,从事等离子体诊断与控制系统研究。
  • 基金资助:
    国家磁约束聚变能发展研究专项(2018YFE0302100);合肥综合性国家科学中心能源研究院项目(21KZS205)

Research on automatic calibration platform for two-dimensional hard X-ray detector 

ZHENG Ying-ying1, 2, LIN Shi-yao1, 3, WU Guo-bin4 , ZHAO Jin-long1 , ZHANG Ji-zong1 , ZHOU Run-hui1, 2, LI Qiang1, 2, CAO Hong-rui1 , YUAN Qi-ping1 , XIAO Bing-jia1   

  1. (1. Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031; 2. Science Island Branch, Graduate School of USTC, Hefei 230026; 3. Hefei Comprehensive National Science Center, Institute of Energy, Hefei 230031; 4. Hefei University of Technology, School of Electronic Science and Applied Physics, Hefei 230009) 
  • Received:2021-07-20 Revised:2022-12-19 Online:2023-09-15 Published:2023-09-04

摘要: 结合云台构建了 EAST 装置中二维硬 X 射线诊断的自动标定平台,通过调节云台的旋转和俯仰角度自动对探测器的所有像素点进行扫描测试,同时自动控制 X 射线管的束流能量和强度,从而对探测器每个像素点强度响应的线性度、不同像素点响应的一致性、相邻像素点之间的串扰等进行测量和标定。实验结果表明,探测器 7×8 像素点对硬 X 射线均有响应,强度响应的线性度可以达到 R=0.999,初步验证了系统功能的可行性。

关键词: 硬 X 射线诊断;自动标定平台;二维碲锌镉探测器;云台;EAST 

Abstract: An automatic calibration platform for 2D hard X-ray diagnostic was constructed with the two-dimensional CdZnTe detector combined with the cradle head. By adjusting the rotation and pitching angle of the cradle head, all pixels of the detector were scanned and tested automatically. Meanwhile, the beam energy and intensity of the X-ray tube were automatically controlled. The linearity of intensity response of each pixel, the consistency of response of different pixels and the crosstalk between adjacent pixels of the detector were measured and calibrated. The experimental results show that 7×8 pixel points of the detector have a response to the hard X-ray, and the linearity of the intensity response can reach R=0.999, which preliminarily verifies the feasibility of the system function. 

Key words: Hard X-ray diagnostic, Automatic calibration platform, Two-dimensional CdZnTe detector; Cradle head, EAST 

中图分类号: