1. College of Engineering and Applied Sciences, Nanjing University, Nanjing 210093, China
2. Nanjing Proton Source R&D Center, Nanjing 210093, China
3. Andesun Technology Group, Zongze Road 98, Zhenjiang, Jiangsu Province 212009, China
4. Construction Machinery School, Chang’an University, Xi’an 710064, China
5. College of Material Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210046, China