Two-frame differential interferometry for aluminum wires Z-pinch plasma diagnostics

Chen Guanghua; Guo Jiangjian; Huang Xianbin; Liu Jun; Zhang Zhaohui; Wang Guilin; Zhou Shaotong; Yang Qingguo

doi:10.3788/HPLPB20132509.2287

Volume 25 Issue 09

Jul. 2013

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Article Navigation > High Power Laser and Particle Beams > 2013 > 25(09): 2287-2291

Yang Zhenghua, Chen Bolun, Wei Minxi, et al. Development and application of high-resolution spherically bent crystal monochromatic imaging system[J]. High Power Laser and Particle Beams, 2013, 25: 2267-2269. doi: 10.3788/HPLPB20132509.2267

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Chen Guanghua, Guo Jiangjian, Huang Xianbin, et al. Two-frame differential interferometry for aluminum wires Z-pinch plasma diagnostics[J]. High Power Laser and Particle Beams, 2013, 25: 2287-2291. doi: 10.3788/HPLPB20132509.2287

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Two-frame differential interferometry for aluminum wires Z-pinch plasma diagnostics

doi: 10.3788/HPLPB20132509.2287

1.
Institute of Fluid Physics,CAEP,P.O.Box 919-109,Mianyang 621900,China

Received Date: 2012-10-12
Rev Recd Date: 2013-04-24
Publish Date: 2013-07-17

Abstract

Abstract

A two-frame laser differential interferometer system has been developed, with which two high-definition interferograms with an interval of 3 ns-12 ns can be obtained in one shot. The system generates two probe pulses with certain intersection angle and time interval via a beam splitting and delaying device. A special off-axis four-focus imaging system is used to image the object on two different areas on a single CCD ship. The system is applied to aluminum wires Z-pinch experiments. Interferograms of Z-pinch plasma evolution are obtained, including wires expanding and ablation, generation and evolution of corona plasma and precursory plasma, etc. Electron density distributions of early-stage Z-pinch plasma are calculated from the interferograms.
- wires Z-pinch,
- plasma diagnostic,
- differential interferometry,
- shearing interferometry,
- electron density

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