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Title: Effect Of Fine Structure On The Accuracy Of A Spectroscopic Plasma Diagnostic

Abstract

In this work we analyze the role played by fine structure in the modeling of spectral line shape. In the case of non hydrogenic impurities, fine structure obviously cannot be neglected since the corresponding components are often resolved. This is generally not the case for hydrogenic lines, which have larger Doppler widths. Nevertheless, we show that in some tokamak plasmas conditions fine structure must be taken into account so as to ensure accurate line width measurements.We present a numerical code developed by our group, which is able to calculate line shapes emitted by any kind of atoms perturbed by electric and magnetic fields. Magnetic field effects on fine structure spectra of both impurities and deuterium are investigated for tokamak edge conditions, i.e. for emitter temperature varying from a fraction of eV to a few tens of eV, and for magnetic field in the range of 0-5 teslas.

Authors:
; ; ;  [1];  [2];  [3]
  1. PIIM, CNRS/Universite de Provence, centre St-Jerome, service 232, F-13397 Marseille Cedex 20 (France)
  2. DRFC, Association EURATOM-CEA Cadarache, 13108 Saint Paul Lez Durance Cedex (France)
  3. Department of Physics, University of Florida, PO Box 118440 Gainesville, Florida 32611-8440 (United States)
Publication Date:
OSTI Identifier:
20797949
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 812; Journal Issue: 1; Conference: PLASMA 2005: International conference on research and applications of plasmas; 3. German-Polish conference on plasma diagnostics for fusion and applications; 5. French-Polish seminar on thermal plasma in space and laboratory, Opole-Turawa (Poland), 6-9 Sep 2005; Other Information: DOI: 10.1063/1.2168876; (c) 2006 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; ACCURACY; ATOMS; COMPUTERIZED SIMULATION; DEUTERIUM; EMISSION SPECTRA; EV RANGE; FINE STRUCTURE; LINE WIDTHS; MAGNETIC FIELDS; PLASMA; PLASMA DIAGNOSTICS; PLASMA IMPURITIES; PLASMA SIMULATION; SPECTROSCOPY; TOKAMAK DEVICES

Citation Formats

Godbert-Mouret, L., Koubiti, M., Rosato, J., Stamm, R., Capes, H., and Marandet, Y. Effect Of Fine Structure On The Accuracy Of A Spectroscopic Plasma Diagnostic. United States: N. p., 2006. Web. doi:10.1063/1.2168876.
Godbert-Mouret, L., Koubiti, M., Rosato, J., Stamm, R., Capes, H., & Marandet, Y. Effect Of Fine Structure On The Accuracy Of A Spectroscopic Plasma Diagnostic. United States. doi:10.1063/1.2168876.
Godbert-Mouret, L., Koubiti, M., Rosato, J., Stamm, R., Capes, H., and Marandet, Y. Sun . "Effect Of Fine Structure On The Accuracy Of A Spectroscopic Plasma Diagnostic". United States. doi:10.1063/1.2168876.
@article{osti_20797949,
title = {Effect Of Fine Structure On The Accuracy Of A Spectroscopic Plasma Diagnostic},
author = {Godbert-Mouret, L. and Koubiti, M. and Rosato, J. and Stamm, R. and Capes, H. and Marandet, Y.},
abstractNote = {In this work we analyze the role played by fine structure in the modeling of spectral line shape. In the case of non hydrogenic impurities, fine structure obviously cannot be neglected since the corresponding components are often resolved. This is generally not the case for hydrogenic lines, which have larger Doppler widths. Nevertheless, we show that in some tokamak plasmas conditions fine structure must be taken into account so as to ensure accurate line width measurements.We present a numerical code developed by our group, which is able to calculate line shapes emitted by any kind of atoms perturbed by electric and magnetic fields. Magnetic field effects on fine structure spectra of both impurities and deuterium are investigated for tokamak edge conditions, i.e. for emitter temperature varying from a fraction of eV to a few tens of eV, and for magnetic field in the range of 0-5 teslas.},
doi = {10.1063/1.2168876},
journal = {AIP Conference Proceedings},
number = 1,
volume = 812,
place = {United States},
year = {Sun Jan 15 00:00:00 EST 2006},
month = {Sun Jan 15 00:00:00 EST 2006}
}