Perturber's charge effect on Stark broadened hydrogen lines in helium plasmas

The Stark line profiles for hydrogen Ly α, Ly β , H α , and H β are calculated using the computer simulation method for helium plasmas in the range of electron concentration from 10 18 to 10 19 cm −3 at increasing temperature values kT from 7 to 10 eV , according to the experimental measurements in...

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Bibliographic Details
Published in:	Journal of quantitative spectroscopy & radiative transfer Vol. 74; no. 5; pp. 539 - 544
Main Authors:	Halenka, Jacek, Olchawa, Wieslaw, Grabowski, Boleslaw, Gajda, Franciszek
Format:	Journal Article
Language:	English
Published:	Elsevier Ltd 01-09-2002
Subjects:	Hydrogen line shape Microfield distribution function Microfield distribution function Hydrogen line shape
Online Access:	Get full text
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Summary:	The Stark line profiles for hydrogen Ly α, Ly β , H α , and H β are calculated using the computer simulation method for helium plasmas in the range of electron concentration from 10 18 to 10 19 cm −3 at increasing temperature values kT from 7 to 10 eV , according to the experimental measurements in dense plasmas (Bochum experiment). The calculation was carried out at two limiting assumptions about the perturbers: (a) in the helium plasma only singly ionized helium ions occur, and (b) in the plasma the doubly ionized ions exclusively exist. In the paper the ratio of the calculated full half-widths, FWHM( b)/ FWHM( a), for these lines are presented. The ratio equals about to 1.1 for Ly β and H β lines, about 1.0 for H α , and about 0.9 for Ly α line.
ISSN:	0022-4073 1879-1352
DOI:	10.1016/S0022-4073(01)00270-9