Experimental observation of ion correlation in a dense laser-produced plasma.
Experimental observation of ion correlation in a dense laser-produced plasma.
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DOI：
10.1103/physrevlett.60.2034
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发表时间：
1988-05
影响因子：
8.6
通讯作者：
Hall;Djaoui;Eason;Jackson;Shiwai;Rose;Cole;Apte
中科院分区：
文献类型：
--
作者：
Hall;Djaoui;Eason;Jackson;Shiwai;Rose;Cole;Apte
我们提出了我们认为是致密等离子体中离子相关效应的首次实验观察结果。等离子体是由高功率激光束驱动的碰撞冲击在铝中产生的。计算机模拟表明，超过1 eV的峰值温度和固体的几倍的密度产生。等离子体内的短程有序观察通过扩展的X射线吸收精细结构（EXAFS）光谱的铝K吸收边。从EXAFS光谱测量的密度与计算机预测的结果相当吻合。
We present what we believe are the first experimental observations of ion correlation effects in a dense plasma. The plasma is produced in aluminum by colliding shocks driven by high-power laser beams. Computer simulations suggest that a peak temperature of over 1 eV and densities of several times solid are produced. Short-range order within the plasma is observed by means of the extended x-ray-absorption fine-structure (EXAFS) spectrum of the aluminum K absorption edge. Densities measured from the EXAFS spectrum are in reasonable agreement with the computer predictions.