1. State Key Laboratory of Radiation Medicine and Protection, School for Radiological and Interdisciplinary Sciences and Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou 215123, P. R. China
2. Beijing Computational Science Research Center, Beijing 100193, P. R. China
3. China Nuclear Power Technology Research Institute Co. Ltd., Shenzhen 518028, P. R. China