Nuclear Techniques ›› 2018, Vol. 41 ›› Issue (11): 110401-110401.doi: 10.11889/j.0253-3219.2018.hjs.41.110401


An implementation of arc discharge detector system for high-power RF cavities

XIE Zaipeng1,2, DING Yukai1, LIANG Jian1, HE Yuan2, LI Yongming2   

  1. 1 College of Computer and Information, Hohai University, Nanjing 210029, China;
    2 Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
  • Received:2018-05-15 Revised:2018-05-28 Online:2018-11-10 Published:2018-11-20
  • Supported by:
    Supported by National Natural Science Foundation of China (No.11505255, No.91026001), Fundamental Research Funds for the Chinese Central Universities (No.2015B29714)

Abstract: [Background] Arc discharge is one of the main issues of high power radio frequency (RF) cavities, which may affect the stable operation of the RF system and requires to be fast detected.[Purpose] This paper aims to design a diagnosis and warning system to detect the arc discharge in real-time.[Methods] Based on open-source hardware and LabVIEW data acquisition software, this system was built and installed in the detector chamber inside the coupler. A redundant hardware design strategy was employed to improve the stability of the system.[Results] Experimental test results showed the response time was of tens of microseconds.[Conclusion] Design scheme and implementation proposed in this paper can be referenced for protecting high power microwave cavity.

Key words: High-power radio-frequency cavity, Arc discharge effect, Real-time detector, Open-source hardware, LabVIEW

CLC Number: 

  • TN710