Temperature measurement through detailed balance in x-ray Thomson scattering

被引：42
作者：
Doeppner, T. [1 ]
Landen, O. L. [1 ]
Lee, H. J. [2 ]
Neumayer, P. [1 ]
Regan, S. P. [3 ]
Glenzer, S. H. [1 ]
机构：
[1] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA
[2] Univ Calif Berkeley, Berkeley, CA 94720 USA
[3] Univ Rochester, Laser Energet Lab, Rochester, NY 14623 USA
来源：
HIGH ENERGY DENSITY PHYSICS | 2009年 / 5卷 / 03期
关键词：
Warm dense matter; Plasma diagnostic; Thomson scattering; Plasmons;
D O I：
10.1016/j.hedp.2009.05.012
中图分类号：
O35 [流体力学]; O53 [等离子体物理学];
学科分类号：
070204 ; 080103 ; 080704 ;
摘要：
The plasma conditions in isochorically heated beryllium are measured by collective x-ray Thomson scattering. The collectively scattered Cl Ly-alpha x-ray line at 2.96 key shows up- and down-shifted plasmon signals. From the detailed balance relation, i.e., the ratio of the up-shifted to the down-shifted plasmon intensities, the plasma temperature can be determined independent of model assumptions. Results are shown for an experiment in which a temperature of 18 eV was measured. Using detailed balance for temperature measurement will be important to validate models that calculate the static ion-ion structure factor S(ii)(k). Published by Elsevier B.V.
引用
收藏
页码：182 / 186
页数：5
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