High-luminosity monochromatic x-ray backlighting using an incoherent plasma source to study extremely dense plasmas (invited)
High-luminosity monochromatic x-ray backlighting using an incoherent plasma source to study extremely dense plasmas (invited)
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使用非相干等离子体源的高亮度单色X射线背光研究极高密度等离子体（特邀）
DOI：
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发表时间：
1997
期刊：
影响因子：
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通讯作者：
T. Pikuz
中科院分区：
文献类型：
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作者：
S. Pikuz;T. Shelkovenko;V. Romanova;D. Hammer;A. Faenov;V. A. Dyakin;T. Pikuz
本文介绍了一种新的诊断稠密等离子体的方法--单色X射线背照法。在这种方法中，阴影图像的明亮，密集的等离子体可以获得高空间分辨率使用单色辐射从一个单独的等离子体，允许在所需的背光光源功率的主要减少。利用球形弯曲的云母晶体作为X射线光学元件对物体等离子体成像。实验结果，即使用具有不同光子能量的X射线辐射获得的测试对象的图像。还显示了在类He Al XII的1 s2 - 1 s2 p线辐射中爆炸Al丝等离子体的阴影图像。空间分辨率可达4 μm。本文介绍了一种新的高密度等离子体诊断方法--单色X射线背光法。在这种方法中，阴影图像的明亮，密集的等离子体可以获得高空间分辨率使用单色辐射从一个单独的等离子体，允许在所需的背光光源功率的主要减少。利用球形弯曲的云母晶体作为X射线光学元件对物体等离子体成像。实验结果，即使用具有不同光子能量的X射线辐射获得的测试对象的图像。还显示了在类He Al XII的1 s2 - 1 s2 p线辐射中爆炸Al丝等离子体的阴影图像。空间分辨率可达4 μm。这里描述的方案对于背光扩展的高密度等离子体是有用的，并且可以是使用X射线激光器用于这种目的的成本较低的替代方案。
A new diagnostic method for dense plasmas, monochromatic x-ray backlighting, is described. In this method, shadow images of a bright, dense plasma can be obtained with high spatial resolution using monochromatic radiation from a separate plasma, permitting a major reduction in the required backlighting source power. The object plasma is imaged utilizing spherically bent mica crystals as x-ray optical elements. Experimental results, namely images of test objects obtained using x-ray radiation having different photon energies, are presented. Shadow images of exploding Al wire plasmas in the 1s2–1s2p line radiation of He-like Al XII are also shown. Spatial resolution as fine as 4 μm is demonstrated. The scheme described here is useful for backlighting extended high density plasmas, and could be a less costly alternative to using x-ray lasers for such purposes.A new diagnostic method for dense plasmas, monochromatic x-ray backlighting, is described. In this method, shadow images of a bright, dense plasma can be obtained with high spatial resolution using monochromatic radiation from a separate plasma, permitting a major reduction in the required backlighting source power. The object plasma is imaged utilizing spherically bent mica crystals as x-ray optical elements. Experimental results, namely images of test objects obtained using x-ray radiation having different photon energies, are presented. Shadow images of exploding Al wire plasmas in the 1s2–1s2p line radiation of He-like Al XII are also shown. Spatial resolution as fine as 4 μm is demonstrated. The scheme described here is useful for backlighting extended high density plasmas, and could be a less costly alternative to using x-ray lasers for such purposes.