【摘要】 介绍了在“神光Ⅰ”和“星光Ⅱ”上分别进行的二倍频、三倍频激光照射金盘靶、腔靶、碳氢有机膜平面靶的实验。通过测量硬X光谱推断超热电子特性,结合受激Raman散射光（SRS）和双等离子体衰变（TPD）产生的3/2ω₀谐波的观测,分析各种靶超热电子产生和抑制的机理,并探讨了抑制超热电子的有效途径。更多还原

【Abstract】 The experiments on gold-disk and hohlraum and plastic hydrocarbon (CH) film targets irradiated by laser beams with wavelength 0.35 um (Xingguang- II) and 0.53 um (Shenguang- I ) are performed. The characteristics of hot electrons are commonly deduced from spectrum of hard X-ray. Associated with the measurementof backward SRS and -3/2wo, the production mechanism of hot electrons for differenttarget type is analyzed in laser plasma with shorter wavelength. A effective way to suppress hot electrons has been found.更多还原