Plasma and Fusion Research

Volume 14, 3401098 (2019)

Regular Articles

Effect of Substrate Temperature on the Hydrogen Reflection at Metal Surfaces
Jhoelle Roche M. GUHIT, Kenta DOI and Motoi WADA
Graduate School of Science and Engineering, Doshisha University, Kyotanabe, Kyoto 610-0394, Japan
(Received 10 January 2019 / Accepted 8 April 2019 / Published 3 June 2019)


Doppler-broadening of the Hα emission spectra from hydrogen reflected at surfaces of palladium and tungsten sheet metal surfaces held at clamp holders were presented in this study. The reflected hydrogen atoms were observed with velocity components produced by the back scatterings of H3+, H2+ and H+ ion incident regions. Palladium exhibited higher spectrum emission intensities than tungsten for both clamp structures. Modification of the clamp structure should produce cooler surface condition due to direct contact of metal surface to the substrate holder thus having H atoms adsorbed more on the palladium sheet.


hydrogen reflection, Doppler-broadening mechanism, palladium, tungsten

DOI: 10.1585/pfr.14.3401098


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