1. National Synchrotron Radiation Laboratory, State Key Laboratory of Particle Detection and Electronics, University of Science and Technology of China, Hefei 230029, China
2. National Laboratory of Solid State Microstructures, School of Physics, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China
3. College of Electronic Engineering, National University of Defense Technology, Hefei 230037, China
4. State Key Laboratory of Particle Detection and Electronics, University of Science and Technology of China, Hefei 230026, China