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

A silicon carbide (SiC) detector was calibrated in terms of quantum efficiency (QE) as well as its spectral responsivity at two different wavelength radiations (<inline-formula> <tex-math notation="LaTeX">$\lambda _{N_{2}} = 2.88$ </tex-math></inline-formula> nm and <inline-formula> <tex-math notation="LaTeX">$\lambda _{N_{e}}= 1.35$ </tex-math></inline-formula> nm), using two different calibrated Si detectors, sensitive to the soft X-ray radiation (<inline-formula> <tex-math notation="LaTeX">$\lambda = 0.1\div 10$ </tex-math></inline-formula> 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.

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