Comparison of collisional radiative models for edge electron density reconstruction from Li I (2s-2p) emission profiles

Four collisional radiative models (CRMs) for reconstruction of the edge electron density profile from the measured Li I (2s-2p) emission profile of an accelerated lithium beam are compared using experimental data from DIII-D. It is shown for both L- and H-mode plasmas that edge density profiles reco...

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Bibliographic Details
Published in:Review of scientific instruments 2012-10, Vol.83 (10), p.10D508-10D508
Main Authors: Stoschus, H, Thomas, D M, Hudson, B, Muñoz Burgos, J M, Schweinzer, J
Format: Article
Language:English
Subjects:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
Bars
BEAMS
Beams (radiation)
Density
DOUBLET-3 DEVICE
ELECTRON DENSITY
EMISSION
H-MODE PLASMA CONFINEMENT
INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
Ion charge
IONS
LITHIUM
LITHIUM IODIDES
PLASMA
PLASMA DENSITY
PLASMA DIAGNOSTICS
PLASMA INSTABILITY
Plasmas
Reconstruction
THOMSON SCATTERING
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Summary:Four collisional radiative models (CRMs) for reconstruction of the edge electron density profile from the measured Li I (2s-2p) emission profile of an accelerated lithium beam are compared using experimental data from DIII-D. It is shown for both L- and H-mode plasmas that edge density profiles reconstructed with the CRMs DDD2, ABSOLUT, [Sasaki et al. Rev. Sci. Instrum. 64, 1699 (1993)] and a new model developed at DIII-D agree in a density scan from n(e) (ped) = (2.0-6.5) × 10(19) m(-3) within 20%, 20%,
ISSN:0034-6748
1089-7623
DOI:10.1063/1.4731008