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Modeling of Hydrogen Lyman Line Profiles for Radiation Transport Studies in Edge Plasmas
Author(s) -
Rosato J.,
Capes H.,
GodbertMouret L.,
Koubiti M.,
Marandet Y.,
Rosmej F.,
Stamm R.
Publication year - 2008
Publication title -
contributions to plasma physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.531
H-Index - 47
eISSN - 1521-3986
pISSN - 0863-1042
DOI - 10.1002/ctpp.200810027
Subject(s) - divertor , zeeman effect , plasma , stark effect , line (geometry) , physics , atomic physics , radiation , enhanced data rates for gsm evolution , computational physics , hydrogen line , coupling (piping) , hydrogen , spectral line , optics , magnetic field , tokamak , materials science , nuclear physics , astronomy , quantum mechanics , telecommunications , geometry , mathematics , computer science , metallurgy
An analytical expression for the Lyman α line profile is proposed, for the purpose of radiation transport studies in divertor plasmas. It is shown that the coupling between Zeeman and Stark broadening has to be retained so as to describe accurately the line shape. This is confirmed by comparison to numerical simulations. The latter furthermore allow to quantify the accuracy of the Stark broadening model for the whole range of conditions encountered in divertors. Lyman α and Lyman β lines are investigated in details. (© 2008 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)