Evolution of microdrop under action of laser impulse

The interaction of the superpower ultrashort laser pulse with the giant clusters (microdrops), containing 109-1010 atoms and having the dimensions, comparable with the laser wave length, is considered. The model of the microdrop plasma evolution under the laser pulse effect is created with an account of the microdrop target specificity and the processes after its completion, are considered. It is theoretically shown that the formed plasma is overheated and its temperature is approximately equal to the ion ionization potential with the specific charge, whereby the microdrop target plasma parameters are not sensitive to the laser pulse form and duration. The theoretical conclusions are confirmed by the X-ray spectral studies, carried out by the 100-terawatt titanium-sapphire laser system in the JAERF (Kyoto, Japan) through irradiating the krypton and xenon microdrops by the laser pulses of 30 up to 500 photosecond duration and intensity of 6·1010 up to 2·1019 W/cm2