Energy deposition by hot electrons in CO2-laser-irradiated targets

Abstract

$K\alpha$ emission has been measured from plane multilayered disk targets irradiated by nanosecond C${\mathrm{O}}_2$-laser pulses at peak irradiances of 7.5 × ${10}^{14}$ W ${\mathrm{cm}}^{-2\mathrm{}}$. Absolute levels of hot-electron preheat have been determined.