Stochastic Processes Applied to the Spectroscopic Diagnostic of Hydrogen in Edge Plasmas

Stochastic processes may be used as an efficient model for the line shapes affected by Stark effect in edge plasma conditions. We check the accuracy of this approach on the Lyman γ line of hydrogen perturbed by ions only. We also use a stochastic process to investigate the effect of plasma oscillati...

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Veröffentlicht in:	Contributions to plasma physics (1988) 2014-06, Vol.54 (4-6), p.529-533
Hauptverfasser:	Hannachi, I., Capes, H., Godbert-Mouret, L., Guzman, F., Koubiti, M., Marandet, Y., Rosato, J., Meftah, M.T., Stamm, R.
Format:	Artikel
Sprache:	eng
Schlagworte:	Diagnostic Diagnostic systems Hydrogen Langmuir wave Langmuir waves Line shape Physics Plasma oscillations Plasmas Stark effect Stochastic process Stochastic processes
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container_end_page	533
container_issue	4-6
container_start_page	529
container_title	Contributions to plasma physics (1988)
container_volume	54
creator	Hannachi, I. Capes, H. Godbert-Mouret, L. Guzman, F. Koubiti, M. Marandet, Y. Rosato, J. Meftah, M.T. Stamm, R.
description	Stochastic processes may be used as an efficient model for the line shapes affected by Stark effect in edge plasma conditions. We check the accuracy of this approach on the Lyman γ line of hydrogen perturbed by ions only. We also use a stochastic process to investigate the effect of plasma oscillations on a line shape. Our model assumes that Langmuir waves are a sequence of oscillating electric fields changing their amplitude and phase according to an exponential waiting time distribution. The possible effects of Langmuir waves on the Lyman α Stark profile are discussed in edge plasma conditions. (© 2014 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
doi_str_mv	10.1002/ctpp.201410035
format	Article
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subjects	Diagnostic Diagnostic systems Hydrogen Langmuir wave Langmuir waves Line shape Physics Plasma oscillations Plasmas Stark effect Stochastic process Stochastic processes
title	Stochastic Processes Applied to the Spectroscopic Diagnostic of Hydrogen in Edge Plasmas
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