Excessive balmer alpha line broadening in a plasma with a potassium catalyst

T.M.P. Briels, R.J.L.J. Regt, de, P.J. Noorden, van, N.M. Driessen, E.M. Veldhuizen, van, G.M.W. Kroesen

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademic

Abstract

Hydrogen gas at 0.25 mbar is led through a quartz tube and dissociated to atomic hydrogen at the surface of a filament, which is electrically heated. Around the filament is a titanium mesh containing potassium, which acts as a catalyst. When the atomic hydrogen is in contact with the catalyst a plasma arises and Lyman and Balmer emission by the hydrogen atoms takes place. We have analyzed the H~ emission profile of our experiment by fitting Voigt functions. The first results give for TH 0.2 eV and for n~ 2.1013 cm3.
Original languageEnglish
Title of host publicationXVth International Conference on Gas Discharges and their Applications, Toulouse, France, 5 – 10 September, 2004
Pages869-872
Publication statusPublished - 2004
Eventconference; XVth International conference on Gas Discharges and their Applications, Toulouse, France; 2004-07-05; 2004-07-10 -
Duration: 5 Jul 200410 Jul 2004

Conference

Conferenceconference; XVth International conference on Gas Discharges and their Applications, Toulouse, France; 2004-07-05; 2004-07-10
Period5/07/0410/07/04
OtherXVth International conference on Gas Discharges and their Applications, Toulouse, France

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