Recording the time dependence of the electron temperature and absolute yield of continuous and line X-rays from flat Au targets irradiated on the Iskra-5 facility

Abstract

Two techniques for recording the absolute yield of continuous X rays in the spectral range > 1 keV and M-series line X rays from flat Au targets irradiated with one channel of the Iskra-5 facility are described. In the first and second methods, radiation is detected with a KAP-crystal-based spectrograph and an X-ray streak camera with a 50-ps time resolution, respectively. Both techniques allow obtainment of absolute values of the yields of continuous and line X-ray radiations from laser plasma that coincide within the measurement accuracy. The time-dependent plasma electron temperature is measured with an X-ray streak camera.