Calibration of SiC Detectors for Nitrogen and Neon Plasma Emission Using Gas-Puff Target Sources

Abstract

A silicon carbide (SiC) detector was calibrated in terms of quantum efficiency (QE) as well as its spectral responsivity at two different wavelength radiations ( $\lambda _{N_{2}} = 2.88$ nm and $\lambda _{N_{e}}= 1.35$ nm), using two different calibrated Si detectors, sensitive to the soft X-ray radiation ( $\lambda = 0.1\div 10$ nm). An Nd:YAG laser was employed to irradiate a nitrogen and a neon gas-puff target, producing a plasma, which is emitting radiation used for estimation of the detector parameters. A possibility to characterize a new generation of not commercial SiC detectors, with a higher band gap with respect to Si, employing a gas-puff target source, will be presented. Measurements show the SiC detectors QE, equal to 3.4 and 7.1 e/ph for 2.88- and 1.35-nm wavelength radiations, respectively. Calculations and results are reported and discussed.