A portable flash x-ray generator powered by an explosive driven ferroelectric generator

被引:1
|
作者
Wu, Youcheng [1 ]
Geng, Lidong [1 ]
Deng, Jianjun [1 ]
Liu, Gaomin [1 ]
He, Hongliang [1 ]
机构
[1] CAEP, Inst Fluid Phys, Key Lab Pulsed Power, POB 919-108, Mianyang 621999, Peoples R China
来源
REVIEW OF SCIENTIFIC INSTRUMENTS | 2022年 / 93卷 / 10期
关键词
Electric power systems - Ferroelectric materials - Ferroelectricity;
D O I
10.1063/5.0092050
中图分类号
TH7 [仪器、仪表];
学科分类号
0804 ; 080401 ; 081102 ;
摘要
In order to develop a portable flash x-ray source, a compact explosive pulsed power source based on an explosive-driven ferroelectric generator (EDFEG) is investigated numerically and experimentally in this paper. The EDFEG is used as a primary power supply to charge a pulse capacitor, and then the capacitor outputs high current through an inductor and an electrical exploding opening switch (EEOS). Finally, a high voltage fast pulse is generated on a diode, which generates x rays. A circuit model was built to analyze the performance of this compact pulsed power source. A portable flash x-ray generator prototype was constructed in our laboratory. The typical experimental results illustrated that after metal wires of the EEOS exploded, a high-voltage fast pulse with a peak value of 180 kV, a rise time of 2.8 ns, and a pulse width of 30 ns was generated on the x-ray diode. Meanwhile, an x-ray pulse with a pulse width of 19 ns, a focus of about 1 mm, and a dose of 100 mR at 15 cm was obtained. Published under an exclusive license by AIP Publishing.
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页数:7
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