ARTICLES: Experiments on plasma heating by CO2 laser radiation in the TIR-1 facility
The results are given of experiments performed on the TIR-1 high-power laser facility, utilizing x-ray plasma diagnostic methods. The experiments were carried out at an energy of ~50 J for a focal spot of ~300 μ and a pulse duration of ~2 nsec. The effective electron temperature in the energy cutoff range Eco~3.5–5 keV was 7 keV. Photons with energies of 10–100 keV were detected. Spectra of the H-, He-, and Li-like fluorine ions were recorded and used to determine the plasma parameters: Te = 220 eV, NH/NN = 13, NHe/NH = 2.1, NLi/NHe = 0.06.