Asymmetry of the Balmer-alpha line shape and recovery of the effective hydrogen temperature in the tokamak scrape-off layer

Journal Article · Sun Feb 15 00:00:00 EST 2015 · Plasma Physics Reports

DOI:https://doi.org/10.1134/S1063780X15020075· OSTI ID:22472451

Neverov, V. S., E-mail: [e-mail]; Kukushkin, A. B., E-mail: [e-mail] ^[1]; Lisgo, S. W., E-mail: [e-mail]; Kukushkin, A. S., E-mail: [e-mail] ^[2]; Alekseev, A. G., E-mail: [e-mail] ^[1]

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1. National Research Centre Kurchatov Institute (Russian Federation)
2. ITER Organization (France)

An algorithm for recovering the effective temperature of atoms of hydrogen (and its isotopes) in the tokamak scrape-off layer from the asymmetry of the Balmer-alpha line shape is proposed. The algorithm is based on the parametrization of the asymmetry of the line shape caused by the nonlocal character of neutral hydrogen flux from the wall into the tokamak plasma. The accuracy of the algorithm is tested against the results of simulations of the velocity distribution function of deuterium neutrals in the scrape-off layer by the EIRENE code with the use of the source data on the main plasma component in the quasi-stationary stage of the inductive mode of ITER operation calculated by the SOLPS4.3 (B2-EIRENE) code.

• OSTI ID: 22472451
• Journal Information: Plasma Physics Reports, Vol. 41, Issue 2; Other Information: Copyright (c) 2015 Pleiades Publishing, Ltd.; Country of input: International Atomic Energy Agency (IAEA); ISSN 1063-780X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ALGORITHMS
ASYMMETRY
COMPUTERIZED SIMULATION
DEUTERIUM
DISTRIBUTION FUNCTIONS
E CODES
HYDROGEN
ITER TOKAMAK
OPERATION
PLASMA
PLASMA SCRAPE-OFF LAYER
PLASMA SIMULATION
S CODES