Observed discrepancies in the central region of the Hβ profile at low electron densities
- 1 September 1972
- journal article
- Published by IOP Publishing in Journal of Physics B: Atomic and Molecular Physics
- Vol. 5 (9), 1756-1761
- https://doi.org/10.1088/0022-3700/5/9/018
Abstract
Profiles of the H beta transition have been obtained at low electron densities (nc=1015 cm-3) in both a pure hydrogen plasma and also in a 99.99% helium plasma containing 0.01% hydrogen. The theoretically predicted central dip is entirely absent at this density for the hydrogen plasma, and is very much smaller than theory in the helium plasma.Keywords
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