Application of spherically bent crystals spectrometer to X-ray diagnosis

Lifeng, 刘利锋 Liu; Shali, 肖沙里 Xiao; Hongjian, 王洪建 Wang; Jun, 施军 Shi; Shenye, 刘慎业 Liu; Minxi, 韦敏习 Wei; Bolun, 陈伯伦 Chen; Jiayu, 钱家渝 Qian

doi:10.3788/hplpb20102210.2313

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Simulation and Experimental Research Of X-ray Toroidally Ben...1

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2016

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“…Similar research has also been made in laser plasma diagnostics technology in China. Our independent-developed toroidally crystal imaging spectrometer has been applied in laser-produced plasma and also Z-pinch plasma diagnostics [12][13][14][15][16][17].…”

Section: Simulation and Experimental Research Of X-ray Toroidally Ben...mentioning

confidence: 99%

Simulation and experimental research of x-ray toroidally bent crystal imaging with laser-produced plasma

Wang¹,

Xiao²,

Lu³

et al. 2016

Laser Phys.

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Based on the Bragg law and imaging principle of bent crystal, the imaging properties of the monochromic backlighting system with a toroidally bent crystal were studied via ray-tracing simulations and experiments. Comparison experiments with both toroidally and spherically bent crystals using a Cr line as the backlighter were performed, showing that using toroidally bent crystal, a 2D image with the same magnifications in meridional and sagittal directions can be obtained with higher spatial resolution. Experiments with laser-produced plasmas using Mica crystal were carried out on the Shenguang II laser facility. Five laser beams were focused onto a Ti planar target producing a line at 4.75 keV as the backlighter and an image of a metal grid with size of 200 μm × 200 μm was recorded with an x-ray image plate. A spatial resolution of 40 μm was demonstrated with a magnification of 3 due to the restriction of the target chamber size. 10 μm spatial resolution might be possible if the detector can be located outside the chamber to enlarge the magnification.

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Section: Simulation and Experimental Research Of X-ray Toroidally Ben...mentioning

confidence: 99%