1. Department of Nuclear Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, China
2. Department of Nuclear Science and Technology, Key Laboratory of Nuclear Technology Application and Radiation Protection in Astronautics, Ministry of Industry and Information Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, China
3. School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing, China
4. Jiangsu Nuclear and Radiation Safety Supervision and Management Center, Nanjing, China