Plasma interference diagnosis by soft X-ray double frequency gratings

Wang Chen; An Honghai; Liu Zhengkun; Wang Wei; Fang Zhiheng; Jia Guo; Xiong Jun; Qiao Xiumei; Fu Shaojun; Zheng Wudi; Wang Shiji

doi:10.11884/HPLPB201527.062003

Volume 27 Issue 06

May 2015

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Wang Chen, An Honghai, Liu Zhengkun, et al. Plasma interference diagnosis by soft X-ray double frequency gratings[J]. High Power Laser and Particle Beams, 2015, 27: 062003. doi: 10.11884/HPLPB201527.062003

Citation:

Wang Chen, An Honghai, Liu Zhengkun, et al. Plasma interference diagnosis by soft X-ray double frequency gratings[J]. High Power Laser and Particle Beams, 2015, 27: 062003. doi: 10.11884/HPLPB201527.062003

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Plasma interference diagnosis by soft X-ray double frequency gratings

doi: 10.11884/HPLPB201527.062003

1.
Shanghai Institute of Laser Plasma,CAEP,Shanghai 201800,China;
2.
National Synchrotron Radiation Laboratory,University of Science and Technology of China,Hefei 230029,China;
3.
Institute of Applied Physics and Computational Mathematics,Beijing 100094,China

Received Date: 2014-10-27
Rev Recd Date: 2015-03-09
Publish Date: 2015-05-26

Abstract

Abstract

To probe the electron density distribution of the plasma, double-frequency grating shearing interferometry based on the soft X-ray laser technology is developed. The 13.9 nm Ni-like Ag soft X-ray laser is used as a probe to make attempt on the diagnosis of laser produced plasma from a planar gold wafer target. Clear interference fringes image is achieved, which fully demonstrates the practicability of this technology. However, there are some problems such as the unclear target surface in the image. Analysis indicates the main reasons of these problems and a reasonable solution is proposed to improve this technology. Key words: diagnoses of plasma; interference technique; soft X-ray laser

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