Design of pulsed power source driving flash X-ray diodes

Ma Xun; Deng Jianjun; Ji Ce; Feng Shuping; Wang Meng; Liu Hongwei

doi:10.11884/HPLPB201527.055006

Volume 27 Issue 05

Apr. 2015

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Article Navigation > High Power Laser and Particle Beams > 2015 > 27(05): 055006

Li Haibo, Shen Li, Zhai Jun, et al. Nanosecond grade edge chopper power supply system of high current proton accelerator[J]. High Power Laser and Particle Beams, 2017, 29: 085001. doi: 10.11884/HPLPB201729.170086

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Ma Xun, Deng Jianjun, Ji Ce, et al. Design of pulsed power source driving flash X-ray diodes[J]. High Power Laser and Particle Beams, 2015, 27: 055006. doi: 10.11884/HPLPB201527.055006

Citation:

Ma Xun, Deng Jianjun, Ji Ce, et al. Design of pulsed power source driving flash X-ray diodes[J]. High Power Laser and Particle Beams, 2015, 27: 055006. doi: 10.11884/HPLPB201527.055006

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Design of pulsed power source driving flash X-ray diodes

doi: 10.11884/HPLPB201527.055006

1.
Key Laboratory of Pulsed Power,Institute of Fluid Physics,CAEP,P.O.Box 919-108,Mianyang 621900,China

Received Date: 2014-12-09
Rev Recd Date: 2015-03-02
Publish Date: 2015-04-24

Abstract

Abstract

Flash X-ray generator comprises a pulsed power driver and a diode. Pulse forming line (PFL) and transmission line are utilized to generate high voltage with several MV on diode, and the function of the latter is to compress the pulse rise time and match the impedance of PFL to diodes. Impedance and capacitance of these coaxial lines are calculated to get the highest voltage and certain pre-pulse on load, respectively. Configuration of diode insulators are designed based on radial grading rings, and the layout of a flash X-ray generator is proposed. The results show that a voltage of 4 MV is generated on 40 load when 2.6 MV and 3.3 MV voltage charging to immediate storage energy and PFL, respectively. Meanwhile the pre-pulse is about 1.2% of charging voltage to PFL.
- flash X-ray generator,
- pulsed power driver,
- water coaxial lines,
- radial insulator stack with grading rings,
- flash radiography

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