X光环孔编码成像技术研究
Investigation of Xray ring aperture coded imaging technique
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摘要: 着眼于惯性约束聚变实验研究中的应用,对X光环孔编码成像技术进行了研究。利用数值模拟的手段,分析了环孔的自相关函数及其对环孔编码成像技术图像重建的影响,对不同的图像重建技术进行了初步比较。基于星光II实验装置,利用自行研制的X光环孔编码成像系统进行了激光等离子体X光环孔编码成像技术的演示实验,获得了满意结果。Abstract: Investigation of Xray ring aperture coded imaging technique is performed aimed at the application of inertial confinement fusion research. The autocorrelations function of a ring aperture is calculated numerically. The effect of the function on the image reconstruction in the coded imaging is analyzed. A primary comparison of different image reconstruction treatment is gaven. Ring aperture coded imaging could have a better spatial resolution than the width of the ring with deconvolution reconstruction technique. Experimental demonstration of laser plasma Xray ring aperture coded imaging is performed on the Xingguang II facility and content results are obtained.
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Key words:
- ring aperture /
- coded imaging /
- implosion /
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