Population inversion in a magnetized expanding thermal plasma

J.J.A. Dungen, van den, O.G. Gabriel, H.S.M.M. Elhamali, D.C. Schram, R.A.H. Engeln

Research output: Contribution to journalArticleAcademicpeer-review

5 Citations (Scopus)


A weakly magnetized expanding hydrogen plasma was investigated by means of optical emission spectroscopy. In the tail of the expansion, highly excited H atoms were found, which were responsible for the color change in the jet from red to blue. Several mechanisms that can produce higher excitation states of the H atom were investigated. After detg. the prodn. rates of each excited level, the dominant prodn. route of highly excited H atoms was detd. to be a mutual H+2-H- recombination. [on SciFinder (R)]
Original languageEnglish
Pages (from-to)1028-1029
JournalIEEE Transactions on Plasma Science
Issue number4 PART 1
Publication statusPublished - 2008


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