Effect of plasma density on working characteristics of plasma-filled rod-pinch diode

Sun Jianfeng; Sun Jiang; Qiu Aici; Zhang Pengfei; Yang Hailiang; Li Jingya; Yin Jiahui; Hu Yang; Jin Liang

doi:10.11884/HPLPB201426.115009

Volume 26 Issue 11

Sep. 2015

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Article Navigation > High Power Laser and Particle Beams > 2014 > 26(11): 115009

Shen Zhanpeng, Chen Xiaojuan, Chen Xueqian, et al. Two parameter optimization methods for large aperture mirror[J]. High Power Laser and Particle Beams, 2018, 30: 062001. doi: 10.11884/HPLPB201830.180011

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Sun Jianfeng, Sun Jiang, Qiu Aici, et al. Effect of plasma density on working characteristics of plasma-filled rod-pinch diode[J]. High Power Laser and Particle Beams, 2014, 26: 115009. doi: 10.11884/HPLPB201426.115009

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Effect of plasma density on working characteristics of plasma-filled rod-pinch diode

doi: 10.11884/HPLPB201426.115009

Sun Jianfeng^{1,2
,
,},
Sun Jiang^1,2,
Qiu Aici^1,2,
Zhang Pengfei^1,2,
Yang Hailiang^1,2,
Li Jingya^1,2,
Yin Jiahui^1,2,
Hu Yang^1,2,
Jin Liang²

1.
State Key Laboratory of Intense Pulsed Radiation Simulation and Effect,Xi’an 710024,China;
2.
Northwest Institute of Nuclear Technology,P.O.Box 69-10,Xi’an 710024,China

Received Date: 2014-06-04
Rev Recd Date: 2014-09-09
Publish Date: 2014-11-04

Abstract

Abstract

Plasma-filled rod-pinch diode (PFRPD) is a rod-pinch diode (RPD) filled with plasma that injected across the anode-cathode gap using plasma guns prior to the start of diode current. The injected plasma may reduce the impedance of PFRPD and enhance the dose rate of X-rays. A PIC simulating model of PFRPD is established. The beam pinching situation is described by the axial distribution of electron deposition density (ADEDD) on the anode rod. A PFRPD experiment platform is established, where a 1 MV PFRPD is driven by Jianguang-Ⅰ accelerator low impedance state(1 MV/9 /40 ns). Experiment results indicate that the diode performs better prefilled with appropriate plasma. The diode impedance is reduced to 10 , X ray radiation dose is increased from 0.76 mGy to 3.19 mGy, axial spot is reduced from 9 mm to 4 mm.
- plasma filled rod pinch diode,
- plasma density,
- numerical simulation,
- axial distribution of electron deposition density,
- axial spot

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