塑料多层靶丸X射线照相技术
X-ray radiograph of multi-layer plastics shell
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摘要: 从理论上分析了高增益ICF实验燃料容器的塑料多层微球材料对X射线吸收机理，给出了适当的X射线照相条件，即工作电压取10kV，照像时间为1.5h,获得了壳层反差较为理想的靶丸X光图像。照相实验所得底片具有很高的横向分辨率，经显微镜放大，微球图像界面清晰可辨，用CCD将图像输入计算机，使用一般图像软件即可较为精确读出壳层厚度像素，为塑料靶丸制备工艺提供了方便有效的跟踪测量手段。Abstract: In this paper, the Xray radiograph technology, which is used for wallthickness measurement of multilayer plastic microsphere, is expounded in detail. The mechanism that Xray is absorbed by the material of plastic shell used as a highgain target in ICF is investigated theoretically. The theoretical analysis and experiment prove that, in vacuum environment, the Xray tube works under 10kV voltage and outputs Xray of 8keV energy, the best image of shell with good contrast and clear interface can be obtained. This technique offers a good measuring method to the shells making．
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Key words:
- xray radiograph /
- contrast between layers /
- plastics shell
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