Institution: | 1 Department of Engineering Physics, Tsinghua University, Beijing 100084, China 2 Key Laboratory of Particle and Radiation Imaging, Tsinghua University, Ministry of Education, Beijing 100084, China 3 Yalong River Hydropower Development Company, Chengdu 610051, China 4 School of Physical Science and Technology, Sichuan University, Chengdu 610041, China |