Dense Plasma Transport and Spectroscopy

这项研究的总体目标是进一步了解对等离子体科学具有重要意义的一系列基本原子和离子过程。将详细探讨三个主题。1)为了建立强耦合等离子体输运理论的基准，我们将测量致密冷等离子体的电导率。2)测量诊断良好的激光等离子体中类He、Li和Be离子的低激发态发射光谱和吸收光谱，并将结果与理论和模拟结果进行比较，以检验电流模型。3)将进行X射线光谱卫星谱线的测量，以验证这些谱线的出现是由于密集等离子体中的电荷转移碰撞所致的理论。

The overall objective of this research is to further the understanding of a set of basic atomic and ionic processes significant to plasma science. Three topics will be pursued in detail. 1) The electrical conductivity of dense, cool plasmas will be measured in order to benchmark transport theory of strongly coupled plasmas. 2) Emission and absorption spectra involving low excitation states of He-, Li-, and Be-like ions in well-diagnosed laser-produced plasmas will be measured and the results compared with theory and simulations to test current models. 3) Measurements of x-ray spectral satellite lines will be carried out in order to test theories that the appearance of these lines is due to charge transfer collisions in dense plasmas.