1. Center of Medical Physics and Technology; Hefei Institutes of Physical Sciences; Chinese Academy of Sciences; Hefei Anhui 230031 China
2. University of Science and Technology of China; Hefei Anhui 230031 China
3. Institute of Plasma Physics; Hefei Institutes of Physical Sciences; Chinese Academy of Sciences; Hefei Anhui 230031 China
4. Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions and School for Radiological and Interdisciplinary Sciences (RAD-X); Soochow University; Suzhou Jiangsu 215000 China