Hydrogen line broadening in afterglow observed by means of EPR

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Authors

DOLEŽAL Vojtěch MRÁZKOVÁ Martina DVOŘÁK Pavel KUDRLE Vít TÁLSKÝ Antonín

Year of publication 2005
Type Article in Proceedings
Conference 15th Symposium of Applications of Plasma Processes - Book of Contributed Papers
MU Faculty or unit

Faculty of Science

Citation
Field Plasma physics
Keywords hydrogen; afterglow; EPR
Description We study hydrogen line broadening in the EPR spectrum in the afterglow of microwave discharge in hydrogen with small amount of oxygen admixture.A strong increase of the hydrogen EPR line width and concentration of H atom with increasing amount of oxygen in the discharge was observed. The possible explanation of both phenomena is the transfer of energy from metastables to dissociation of hydrogen molecules, which results in suprathermal H atoms.
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