1. School of Biomedical Engineering, Fourth Military Medical University 1 , Xi’an 71003, People’s Republic of China
2. Northwest Institute of Mechanical and Electrical Engineering 2 , Xianyang 712099, People’s Republic of China
3. Department of Nuclear Medicine, The Second Affiliated Hospital of Xi'an Jiaotong University 3 , Xi’an 710004, People’s Republic of China
4. State Key Laboratory of Electrical Insulation and Power Equipment, Center for Plasma Biomedicine, Xi’an Jiaotong University 4 , Xi’an 710049, People’s Republic of China