探测激光等离子体电子温度的一种新方法受激Raman散射光谱的短波截断

A NEW METHOD FOR DETECTION OF THE ELECTRON TEMPERATURE IN LASER-PLASMA SHORT WAVE CUT OFF STIMULATED RAMAN SCATTERING SPECTRUM

利用受激Ｒａｍａｎ散射（ＳＲＳ）三波相互作用理论导出探测激光等离子体电子温度的一种新方法．对我国神光ＬＦ１２￣＃激光器上的ＳＲＳ实验光谱进行了分析，由ＳＲＳ光谱短波截断波长λ＿ｓ自洽地计算出激光等离子体晕区电子温度Ｔ＿ｓ．这些结果与由Ｘ射线谱测得的结果合理地符合．

From the theory of stimulated Raman scattering(SRS)three wave interaction,a new method of detecting the electron temperature in laser-plasma is obtained.SRSspectrum obtained from Shenguang l2# Nd-laser experiments are analysed.Usingthe wave length of short wave cut off of SRS,the electron temperature in coronaplasma region is calculated consistently.These results agree reasonably with X-rayspectrum experiments.