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Stark profiles of forbidden and allowed transitions in a dense, laser produced helium plasma.Comparisons of experimental and theoretical Stark profiles of the allowed 2(1)P-3(1)D helium line at 6678 A and of the forbidden 2(1)P-3(1)P component at 6632 A in a dense plasma were carried out. The plasma was produced by optical breakdown of helium by means of a repetitive, high power CO2 laser. The allowed line shows good agreement with conventional theory, but discrepancies are found around the centre of the forbidden component. When normally neglected ion motions are taken into consideration, the observed discrepancies are partially removed. Tables of the Stark profiles for the pair of lines are given.
Document ID
19720048557
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Ya'akobi, B.
(Maryland, University College Park, Md., United States)
George, E. V.
Bekefi, G.
Hawryluk, R. J.
(MIT Cambridge, Mass., United States)
Date Acquired
August 6, 2013
Publication Date
May 1, 1972
Publication Information
Publication: Journal of Physics
Subject Category
Physics, Plasma
Accession Number
72A32223
Funding Number(s)
CONTRACT_GRANT: NGR-21-002-073
CONTRACT_GRANT: AT(30-1)-3980
Distribution Limits
Public
Copyright
Other

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