1. Fundamental Science on Nuclear Wastes and Environmental Safety Laboratory, Southwest University of Science and Technology, Mianyang 621010, People’s Republic of China
2. Key Laboratory of Wide Band-Gap Semiconductor Materials and Devices, School of Microelectronics, Xidian University, Xian 710071, People’s Republic of China
3. Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang 621900, People’s Republic of China