Affiliation: | 1. School of Physics and Nuclear Energy Engineering, Beihang University, Beijing 100191, China;2. China Institute of Atomic Energy, Beijing 102413, China;3. School of Radiation Medicine and Protection, Medical College of Soochow University, Soochow 215123, China;4. Institute of Modern Physics, Chinese Academy of Sciences,Lanzhou 730000, China;5. School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871,China |