1. Department of Nuclear Science and Technology, College of Material Science and Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, China
2. Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Suzhou, China
3. Key Laboratory of Ray Beam Technology of Ministry of Education, College of Nuclear Science and Technology, Beijing Normal University, Beijing, China
4. School of Nuclear Science and Technology, Lanzhou University, Lanzhou, China