[1] [1] Levinton F M, Fonck R J, Gammel G M, et al. Physical Review Letters, 1989, 63: 2060.

[2] [2] Yu D L, Wei Y L, Xia F, et al. Review of Scientific Instruments, 2014, 85(5): 053508.

[3] [3] Wroblewski D, Burrell K H, Lao L L, et al. Review of Scientific Instruments, 1990, 61(11): 3552.

[4] [4] Stratton B C, Long D, Palladino R, et al. Review of Scientific Instruments, 1999, 70: 898.

[5] [5] Fujita T, Kuko H, Sugie T, et al. Fusion Engineering and Design, 1997, 34-35: 289.

[6] [6] Ko J, Chung J, Messmer M. Fusion Engineering and Design. 2016, 109: 742.

[7] [7] Hu C D, Xie Y L, Xie Y H, et al. Plasma Science and Technology, 2015, 17: 817.

[8] [8] Yu Q J, Fu J, Liao K, et al. Fusion Engineering and Design, 2020, 153: 111516.

[9] [9] Fu J, Li Y Y, Lü B, et al. Review of Scientific Instruments, 2014, 85: 11D410.