Key Laboratory of Particle&Radiation Imaging(Tsinghua University),Ministry of Education,Beijing 100084,People's Republic of China;
Department of Engineering Physics,Tsinghua University,Beijing 100084,People's Republic of China;
State Key Laboratory of Intense Pulsed Radiation Simulation and Effect,Northwest Institute of Nuclear Technology,Xi'an 710024,People's Republic of China;
State Key Laboratory of Electrical Insulation and Power Equipment,Xi’an Jiaotong University,Xi'an 710049,People's Republic of China;
gas switch; self-triggering; pre-ionization; jitter; nanosecond pulse;