| 基于激光驱动等离子体X光源的X射线相衬成像 |
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| 引用本文： | 晏骥, 江少恩, 阴泽杰. 基于激光驱动等离子体X光源的X射线相衬成像[J]. 强激光与粒子束, 2010, 22(09). |
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| 作者姓名： | 晏骥 江少恩 阴泽杰 |
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| 作者单位： | 1.中国科学技术大学 近代物理系, 合肥 230026;;;2.中国工程物理研究院 激光聚变研究中心, 四川 绵阳 621900 |
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| 摘 要： | 为了诊断惯性约束聚变（ICF）内爆靶丸球壳的多层信息，在神光Ⅱ激光器上对激光驱动等离子体X光源的相衬成像进行了研究。利用神光Ⅱ第9路激光驱动平面Ti靶获得X光源，在10 μm的针孔约束下作为次级点光源对样品成像，用X光胶片记录。成功地将相衬成像技术应用于ICF实验，综合考虑成像放大倍数、分辨力、成像衬度和抑制烧蚀碎片等因素，选择合适的实验条件，成功获得了清晰的双层内爆靶丸球壳结构，空间分辨力优于10 μm。
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| 关 键 词： | 惯性约束聚变 相衬成像 激光等离子体X光源 针孔辅助点背光 |
In-line phase-contrast imaging with laser-based hard X-ray source |
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| yan ji, jiang shaoen, yin zejie. In-line phase-contrast imaging with laser-based hard X-ray source[J]. High Power Laser and Particle Beams, 2010, 22. |
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| Authors: | yan ji jiang shaoen yin zejie |
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| Affiliation: | 1. Department of Modern Physics,University of Science and Technology of China,Hefei 230026,China;;;2. Research Center of Laser Fusion,CAEP,P.O.Box 919-986,Mianyang 621900,China |
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| Abstract: | The research on in-line phase-contrast imaging with laser-based hard X-ray source was carried out on Shanghai “Shenguang Ⅱ” laser facility, in which the X-rays emitted from laser-produced plasma Ti targets passed through the pinhole with diameter 10 μm, and the X-ray film was used to record the result. Multi-layer capsule structure was obtained in this experiment with the spatial resolution better than 10 μm. The research indicates that the phase contrast imaging have advantages in low-Z material diagnosis and can be used in ICF experiment． |
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| Keywords: | icf phase contrast imaging laser-based plasma x-ray source pinhole assisted point backlight |
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