Theoretical and experimental studies of the radiative properties of hot dense matter for optimizing soft X-ray sources
Theoretical and experimental studies of the radiative properties of hot dense matter for optimizing soft X-ray sources
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DOI：
10.1017/s0263034607000535
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发表时间：
2007-09
影响因子：
0.9
通讯作者：
N. Orlov;S. Gus'kov;S. Pikuz;V. Rozanov;T. Shelkovenko;N. Zmitrenko;D. Hammer
中科院分区：
文献类型：
--
作者：
N. Orlov;S. Gus'kov;S. Pikuz;V. Rozanov;T. Shelkovenko;N. Zmitrenko;D. Hammer
对用作软X射线源的热稠密等离子体的辐射特性进行了理论和实验研究。的理论模型，可用于复杂材料的重要特征进行了讨论。应用优化方法确定了一种有效的复合材料，通过激光与厚固体靶相互作用产生光学厚等离子体。将所得材料的效率与先前理论上评估的其他复合材料的效率进行比较。结果表明，优化过程，在实践中，找到更高的辐射效率的材料比以前的作者已经发现。对金属丝爆炸产生的光学薄等离子体进行了类似的理论研究。辐射效率的理论估计相比，从测量的X-箍缩辐射能量产额使用两个爆炸丝材料，镍铬合金和合金188的实验数据。结果表明，理论计算与实验数据吻合较好。
Theoretical and experimental studies of radiative properties of hot dense plasmas that are used as soft X-ray sources have been carried out depending on the plasma composition. Important features of the theoretical model, which can be used for complex materials, are discussed. An optimizing procedure that can determine an effective complex material to produce optically thick plasma by laser interaction with a thick solid target is applied. The efficiency of the resulting material is compared with the efficiency of other composite materials that have previously been evaluated theoretically. It is shown that the optimizing procedure does, in practice, find higher radiation efficiency materials than have been found by previous authors. Similar theoretical research is performed for the optically thin plasma produced from exploding wires. Theoretical estimations of radiative efficiency are compared with experimental data that are obtained from measurements of X-pinch radiation energy yield using two exploding wire materials, NiCr and Alloy 188. It is shown that theoretical calculations agree well with the experimental data.