Affiliation: | a The Key Laboratory of Beam Technology and Materials Modification of Ministry of Education, Beijing Normal University, Beijing 100875, China b The Key Laboratory of Evidence Science of Ministry of Education, China University of Political Science and Law, Beijing 100875, China c College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875, China d Beijing Radiation Center, Beijing 100875, China e Institute of High Energy Physics, Chinese Academy of Science, Beijing 100039, China f Center for Disease Control and Prevention of Beijing, Beijing 100013, China |