CHAI Zhen1,2, LIU Jingshuang1,2, LI Qingyuan1, HUANG Xinyao3
1. School of Instrumentation and Optoelectronic Engineering, Beihang University, Beijing 100191, China;
2. Institute of LargeScale Scientific Facility, Beihang University, Beijing 100191, China;
3. School of Physics, Beihang University, Beijing 102206, China