Measurements of Ionic Structure in Shock Compressed Lithium Hydride from Ultrafast X-Ray Thomson Scattering
Measurements of Ionic Structure in Shock Compressed Lithium Hydride from Ultrafast X-Ray Thomson Scattering
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DOI：
10.1103/physrevlett.103.245004
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发表时间：
2009-12-11
影响因子：
8.6
通讯作者：
Glenzer, S. H.
中科院分区：
文献类型：
--
作者：
Kritcher, A. L.;Neumayer, P.;Glenzer, S. H.
我们提出了第一个超快的时间，光谱和角度分辨的X射线散射测量冲击压缩物质。实验光谱产生的绝对弹性和非弹性散射强度从测量的自由电子密度。激光压缩的氢化锂样品的非弹性康普顿和等离子体散射的K-α X射线探针提供独立的测量温度和密度的特点。数据显示出良好的协议时，使用两个物种的形状因子和占筛选的离子-离子相互作用的总强度和结构。
We present the first ultrafast temporally, spectrally, and angularly resolved x-ray scattering measurements from shock-compressed matter. The experimental spectra yield the absolute elastic and inelastic scattering intensities from the measured density of free electrons. Laser-compressed lithium-hydride samples are well characterized by inelastic Compton and plasmon scattering of a K-alpha x-ray probe providing independent measurements of temperature and density. The data show excellent agreement with the total intensity and structure when using the two-species form factor and accounting for the screening of ion-ion interactions.