Atomic and molecular deuterium edge density evaluation from spectral analysis of the Dα line shape

Autor: Roland Stamm, B. Pégourié, M. Koubiti, C. De Michelis, A. Escarguel, H. Capes, A Azeroual, Yann Corre, J. P. Gunn, L. Godbert-Mouret, J M Ané, R. Guirlet, J.T. Hogan
Rok vydání: 2001
Předmět:
Zdroj: Plasma Physics and Controlled Fusion. 43:1733-1746
ISSN: 1361-6587
0741-3335
DOI: 10.1088/0741-3335/43/12/307
Popis: A method for molecular and atomic deuterium density evaluation, based on the analysis of the Dα spectral line shape coupled to a collisional radiative model, is presented. It is illustrated by its application to the plasma edge in the ergodic divertor configuration of the tokamak Tore Supra. An important molecular density (nD2>1018 m-3, 1 cm radially away from the neutralizer plate), of the same order as the total atomic density nD (nD/nD2~1.4), is found for the entire range of edge electron temperatures (10 eV
Databáze: OpenAIRE