Nuclear Science and Techniques

《核技术》(英文版) ISSN 1001-8042 CN 31-1559/TL     2019 Impact factor 1.556

Nuclear Science and Techniques ›› 2018, Vol. 29 ›› Issue (2): 22 doi: 10.1007/s41365-018-0361-9

• NUCLEAR ELECTRONICS AND INSTRUMENTATION • Previous Articles     Next Articles

Design of a control system with high stability for a streak camera using isolated ADC

Yu-Man Fang 1,2, Xiang-Yan Xu 1, Jin-Shou Tian 1, Cheng-Quan Pei 3   

  1. 1 Key Laboratory of Ultra-Fast Photoelectric Diagnostics Technology, Xi’an Institute of Optics and Precision Mechanics, Xi’an 710119, Shaanxi, China
    2 University of Chinese Academy of Sciences, Beijing 100049, China
    3 Xi’an Jiaotong University, Xi’an 710049, Shaanxi, China
  • Contact: Xiang-Yan Xu E-mail:xuxy@opt.ac.cn
Yu-Man Fang, Xiang-Yan Xu, Jin-Shou Tian, Cheng-Quan Pei. Design of a control system with high stability for a streak camera using isolated ADC.Nuclear Science and Techniques, 2018, 29(2): 22     doi: 10.1007/s41365-018-0361-9
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Abstract:

The streak camera is an ultra-fast diagnostic instrument with high sensitivity, and a high temporal and spatial resolution. It is primarily employed in various scientific research, such as inertial confinement fusion (ICF), synchrotron light sources, and electron–positron colliders. An automatic control system for an X-ray streak camera is presented in this paper. The output terminal of an analogto- digital converter was isolated from its input terminal, to reduce interference from high-voltage electrodes. Compared with traditional methods, this scheme also improved the internal electromagnetic interface immunity. Therefore, the system stability was enhanced. With this optimized control system, some characterizations of the streak camera were measured. Static and dynamic spatial resolutions of 25 and 20 lp/mm (CTF = 20%), respectively, were obtained. In addition, a dynamic range of 552:1 and a temporal resolution of 7.3 ps were achieved. The results confirmed that these characterizations are sufficient for the specifications derived from the diagnostic requirements of ICF.

Key words: ICF, Distributed control, Streak camera, Isolated ADC, X-ray detector