Аннотация:A method of wide-range X-ray and electron spectrometry of plasma formed by a femtosecondlaser pulse with a peak intensity of over 1018 W/cm2 on the surface of a solid-state target is experimentallyconsidered. Measurements of a flow of charged particles and quanta were carried out usingthermoluminescent detectors based on LiF(Mg, Ti) that accumulate a dose, in front of which magnetswere additionally installed to isolate the X-ray component. The spectra were obtained on the basis ofthe method for determining the accumulated dose of a detector depending on the thickness of the filterinstalled in front of it. The data have been restored in the range from 10 keV to several megaelectronvolts.The “temperatures” of the hot electron components of laser plasma have been determined,which are 160 and 1500 keV and may be related to the effects of particle acceleration in the denseplasmaregion, as well as the temperatures during propagation of radiation in a cloud of subcriticaldensity.
