Development of multi-spectral X-ray time-integrated imaging system on primary test stand
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摘要: 成功研制了用于聚龙一号装置上Z箍缩实验中等离子体图像诊断的三通道不同光子能段的X射线积分成像系统。该系统主要由针孔阵列调节组件、X射线真空飞行管道、X射线分光器件及成像板组成，各通道的光谱响应分别为277 eV，小于700 eV和大于800 eV，其对应的成像针孔直径为100，100和50 m，成像放大倍率2倍，成像空间分辨率均优于0.2 mm。在聚龙一号装置上完成了该成像系统的性能考核，获取了不同光子能段的等离子体时间积分图像。结果表明，该成像系统满足聚龙一号装置上Z箍缩实验的诊断需求，在提升了单台相机光谱响应范围的同时提高了低能段图像的空间分辨率。Abstract: According to the requirements of Z-pinch experiments on primary test stand(PTS) facility, we develop a three-channel, time-integrated X-ray imaging system with different spectral responses. This imaging system consists of a pinhole array, a pipe through which the X-ray propagates and imaging plates. The spectral ranges of the three channels are 277 eV, 700 eV and 800 eV, corresponding to pinholes with diameter of 100 m，100 m and 50 m respectively. This system has a magnification of 2, and a spatial resolution of 0.2 mm. This system is tested on PTS and the results show that it meets the diagnostic requirements of Z-pinch experiments on PTS very well, AND can improve the spectral coverage and the image resolution of the low photon energy channel at the same time.
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Key words:
- pinhole time-integrated camera /
- multilayer mirror /
- planar mirror /
- Z-pinch /
- primary test stand
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