Design of 500 kV sub-nanosecond pulsed X-ray generator

Zhang Xiaoqiang; Zhao Guangyi; Zhou Lin; Jiang Zhanxing; Liang Chuan; Li Mingjia; Wang Zhen

doi:10.11884/HPLPB201830.170389

Volume 30 Issue 2

Feb. 2018

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Zhang Xiaoqiang, Zhao Guangyi, Zhou Lin, et al. Design of 500 kV sub-nanosecond pulsed X-ray generator[J]. High Power Laser and Particle Beams, 2018, 30: 025004. doi: 10.11884/HPLPB201830.170389

Citation:

Zhang Xiaoqiang, Zhao Guangyi, Zhou Lin, et al. Design of 500 kV sub-nanosecond pulsed X-ray generator[J]. High Power Laser and Particle Beams, 2018, 30: 025004. doi: 10.11884/HPLPB201830.170389

Zhang Xiaoqiang, Zhao Guangyi, Zhou Lin, et al. Design of 500 kV sub-nanosecond pulsed X-ray generator[J]. High Power Laser and Particle Beams, 2018, 30: 025004. doi: 10.11884/HPLPB201830.170389

Citation:

Zhang Xiaoqiang, Zhao Guangyi, Zhou Lin, et al. Design of 500 kV sub-nanosecond pulsed X-ray generator[J]. High Power Laser and Particle Beams, 2018, 30: 025004. doi: 10.11884/HPLPB201830.170389

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Design of 500 kV sub-nanosecond pulsed X-ray generator

doi: 10.11884/HPLPB201830.170389

Institute of Nuclear Physics and Chemistry, CAEP, P.O.Box 919-226, Mianyang 621900, China

Received Date: 2017-09-29
Rev Recd Date: 2017-10-23
Publish Date: 2018-02-15

Abstract

Abstract

Sub-nanosecond high energy X-ray source is widely used in calibration of time response characteristic and sensitivity of radiation detectors. A compact generator for sub-nanosecond X-ray pulse was developed, covering a floor area of 1.2 m×40 cm with weight of 142 kg. A coaxial pulsed transformer was designed using double conical windings and triple resonance transformer technology. A nanosecond pulse forming line and a self-break oil switch were employed, generating a high voltage pulse with peak value of 370 kV and pulse width of 3.8 ns. The voltage was then increased to 520 kV by multi-stage over-matched transmission lines, and the pulse width was sharpened to 0.5 ns via a peaking-chopping oil switch. The power of the pulse loaded across the AK gap of the X-ray tube was 1.8 GW. The X-ray tube, using a foil array cathode, was designed and analyzed on the basis of Child-Langmuir theory. Radiation with a peak energy flux rate of about 1×10¹⁶ MeV·cm^-2·s^-1 was generated at a distance of 20 cm, and the integral dose was 4.1 mR per pulse.
- sub-nanosecond high-voltage pulse,
- pulsed X-ray generator,
- triple resonance transformer,
- peaking-chopping,
- X-ray tube

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References(15)

References

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