Affiliation:
1. Forschungszentrum Jülich GmbH, Institut für Energie- und Klimaforschung–Plasmaphysik, Partner of the Trilateral Euregio Cluster (TEC), 52425 Jülich, Germany
Abstract
In this work, we present a new application for the line shapes of emission induced by reflected hydrogen atoms. Optical properties of the solids in contact with the plasma could be effectively measured at the wavelength of Balmer lines: time-resolved measurements of reflectance and polarization properties of mirrors are performed using the wavelength separation of the direct and reflected signals. One uses the Doppler effect of emission of atoms excited by collisions with noble gases, primarily with Ar or with Kr. In spite of a new application of line shapes, the question of the source of the strong signal in the case of Ar exists: the emission observed in the case of the excitation of H or D atoms by Ar exceeds the signal induced by collisions with Kr atoms by a factor of five, and the only available experimental data for the ground state excitation show practically equal cross-sections for both gases in the energy range of 80–200 eV.
Reference41 articles.
1. Marchuk, O., Brandt, C., and Pospieszczyk, A. (2017). Verfahren zur Bestimmung der Oberflächeneigenschaften von Targets. (DE102016002270B3), German Patent.
2. In-situ measurements of the spectral reflectance of metallic mirrors at the Hα line in a low density Ar-H plasma;Dickheuer;Rev. Sci. Instrum.,2018
3. (2018). NRL Plasma Formulary, Plasma Physics Division, Naval Research Laboratory. NRL/PU/6790-18-640.
4. Stangeby, P.C. (2000). The Plasma Boundary of Magnetic Fusion Devices, IoP Publishing Ltd.
5. Spectroscopic investigations of a cathode fall region of the Grimm-type glow discharge;Kuraica;Spectrochim. Acta Part B,1996
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