Analysis of optical spectra from steel samples exposed to pulsed plasma streams

In the reported studies the attention was focused on an analysis of optical spectra of the visible radiation emitted from stainless steel (SS) samples exposed to intense pulses from a ND:YAG laser or pulsed plasma streams produced by a Rod Plasma Injector (RPI) IBIS. Operational regimes of the RPI IBIS facility, which can generate intense deuterium-plasma streams, were studied and corresponding energy fluxes were determined. Optical emission spectra from the laser- or plasma-irradiated SS samples were recorded at different energies supplied. It was proved that intensities of the emitted spectral lines of Fe I and Cr I species depend strongly on deuterium-plasma energy deposited upon the irradiated target.