利用欧米茄激光系统上的干涉测量法和汤姆逊散射对超音速气体射流进行表征。

Supersonic gas-jet characterization with interferometry and Thomson scattering on the OMEGA Laser System.

作者信息

Hansen A M, Haberberger D, Katz J, Mastrosimone D, Follett R K, Froula D H

机构信息

Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623-1299, USA.

出版信息

Rev Sci Instrum. 2018 Oct;89(10):10C103. doi: 10.1063/1.5036645.

DOI:10.1063/1.5036645

PMID:30399792

Abstract

A supersonic gas-jet target platform has been activated on the OMEGA Laser System. An analytic model for gas dynamics in a supersonic nozzle was used to predict gas-plume parameters and to design nozzles for use in laser-plasma experiments. The gas-jet system was analyzed with a Mach-Zehnder interferometer to study neutral density and with Thomson scattering to study plasma parameters on the OMEGA Laser System. These initial measurements demonstrate the capabilities of the OMEGA gas jet as a platform for future laser-plasma interaction science.

摘要

一个超音速气体喷流靶平台已在欧米茄激光系统上启动。一个用于超音速喷嘴内气体动力学的解析模型被用来预测气体羽流参数，并设计用于激光等离子体实验的喷嘴。利用马赫-曾德尔干涉仪对该气体喷流系统进行分析以研究中性密度，利用汤姆逊散射在欧米茄激光系统上研究等离子体参数。这些初步测量展示了欧米茄气体喷流作为未来激光-等离子体相互作用科学平台的能力。