title: A 800 kV compact peaking capacitor for nanosecond generator.
abstract: An extremely compact high voltage peaking capacitor is developed. The capacitor has a pancake structure with a diameter of 315 mm, a thickness of 59 mm, and a mass of 6.1 kg. The novel structural design endows the capacitor with a better mechanical stability and reliability under hundreds of kilovolts pulse voltage and an inner gas pressure of more than 1.5 MPa. The theoretical value of the capacitor self-inductance is near to 17 nH. Proved by series of electrical experiments, the capacitor can endure a high-voltage pulse with a rise time of about 20 ns, a half-width duration of around 25 ns, and an amplitude of up to 800 kV in a single shot model. When the capacitor was used in an electromagnetic pulse simulator as a peaking capacitor, the rise time of the voltage pulse can be reduced from 20 ns to less than 3 ns. The practical value of the capacitor's inductance deduced from the experimental date is no more than 25 nH.
authors.affiliation: School of Electrical Engineering, Xi'an Jiaotong University, Xi'an 710049, China.
authors.forename: Wei
authors.initials: W
authors.lastname: Jia
authors.affiliation: State Key Laboratory of Intense Pulsed Radiation Simulation and Effect, Northwest Institute of Nuclear Technology, Xi'an 710024, China.
authors.forename: Zhiqiang
authors.initials: Z
authors.lastname: Chen
authors.affiliation: State Key Laboratory of Intense Pulsed Radiation Simulation and Effect, Northwest Institute of Nuclear Technology, Xi'an 710024, China.
authors.forename: Junping
authors.initials: J
authors.lastname: Tang
authors.affiliation: State Key Laboratory of Intense Pulsed Radiation Simulation and Effect, Northwest Institute of Nuclear Technology, Xi'an 710024, China.
authors.forename: Weiqing
authors.initials: W
authors.lastname: Chen
authors.affiliation: State Key Laboratory of Intense Pulsed Radiation Simulation and Effect, Northwest Institute of Nuclear Technology, Xi'an 710024, China.
authors.forename: Fan
authors.initials: F
authors.lastname: Guo
authors.affiliation: State Key Laboratory of Intense Pulsed Radiation Simulation and Effect, Northwest Institute of Nuclear Technology, Xi'an 710024, China.
authors.forename: Fengrong
authors.initials: F
authors.lastname: Sun
authors.affiliation: State Key Laboratory of Intense Pulsed Radiation Simulation and Effect, Northwest Institute of Nuclear Technology, Xi'an 710024, China.
authors.forename: Junna
authors.initials: J
authors.lastname: Li
authors.affiliation: School of Electrical Engineering, Xi'an Jiaotong University, Xi'an 710049, China.
authors.forename: Aici
authors.initials: A
authors.lastname: Qiu