中国物理B ›› 1999, Vol. 8 ›› Issue (5): 351-355.doi: 10.1088/1004-423X/8/5/005

• PHYSICS OF GASES, PLASMAS, AND ELECTRIC DISCHARGES • 上一篇    下一篇

THOMSON SCATTERING MEASUREMENT OF LASER-HEATED PLASMAS

翟侃, 韩申生, 陆海鹤, 李明富, 杨晓东, 汤宇辉, 徐至展   

  1. Laboratory for High Intensity Optics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
  • 收稿日期:1998-03-30 修回日期:1998-11-20 出版日期:1999-05-20 发布日期:1999-05-20
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No. 69678012) and by the Foundation of High Technology Research and Development Plan (Grant No. 863-416-3), China.

THOMSON SCATTERING MEASUREMENT OF LASER-HEATED PLASMAS

Zhai Kan (翟侃), Han Shen-sheng (韩申生), Lu Hai-he (陆海鹤), Li Ming-fu (李明富), Yang Xiao-dong (杨晓东), Tang Yu-hui (汤宇辉), Xu Zhi-zhan (徐至展)   

  1. Laboratory for High Intensity Optics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
  • Received:1998-03-30 Revised:1998-11-20 Online:1999-05-20 Published:1999-05-20
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No. 69678012) and by the Foundation of High Technology Research and Development Plan (Grant No. 863-416-3), China.

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摘要： Experiment on characterizing the laser-heated plasmas using Thomson scattering measurement has been carried out. An incoherent Thomson scattering system with a 90° scattering angle has been established. The influence of the gas density and the pumping laser energy on the temperature of the laser-heated plasma has been examined. The results show that the temperature of the laser-heated plasma increases with the increase of pumping laser energy and the plasma density, which agrees well with the explanation of inverse Bremsstrahlung absorption.

Abstract: Experiment on characterizing the laser-heated plasmas using Thomson scattering measurement has been carried out. An incoherent Thomson scattering system with a 90° scattering angle has been established. The influence of the gas density and the pumping laser energy on the temperature of the laser-heated plasma has been examined. The results show that the temperature of the laser-heated plasma increases with the increase of pumping laser energy and the plasma density, which agrees well with the explanation of inverse Bremsstrahlung absorption.

中图分类号:  (Plasma production and heating by laser beams (laser-foil, laser-cluster, etc.))

  • 52.50.Jm
52.70.Kz (Optical (ultraviolet, visible, infrared) measurements) 52.25.Os (Emission, absorption, and scattering of electromagnetic radiation ?)