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A pinhole camera for ultrahigh-intensity laser plasma experiments

2017; American Institute of Physics; Volume: 88; Issue: 11 Linguagem: Inglês

10.1063/1.5009189

1527-2400

Chisheng Wang, Honghai An, Jian Xiong, Zhiheng Fang, Y. W. Wang, Zheng Zhang, N. Hua, Jianwen Sun, Weiwen Wang,

High-pressure geophysics and materials

A pinhole camera is an important instrument for the detection of radiation in laser plasmas. It can monitor the laser focus directly and assist in the analysis of the experimental data. However, conventional pinhole cameras are difficult to use when the target is irradiated by an ultrahigh-power laser because of the high background of hard X-ray emission generated in the laser/target region. Therefore, an improved pinhole camera has been developed that uses a grazing-incidence mirror that enables soft X-ray imaging while avoiding the effect of hard X-ray from hot dense plasmas.