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          Institute: MPI für Plasmaphysik     Collection: Articles, Books, Inbooks     Display Documents

ID: 56458.0, MPI für Plasmaphysik / Articles, Books, Inbooks
Tomographic reconstruction of 2D line radiation distribution in the JET MkIIGB divertor
Authors:Huber, A.; Coad, P.; Coster, D.; Ingesson, L. C.; Itami, K.; Jachmich, S.; Kirschner, A.; Lehnen, M.; Matthews, G. F.; Mertens, P.; Philipps, V.; Pospieszczyk, A.; Schweer, B.; Sergienko, G.; Stamp, M.; Contributors to the EFDA-JET Programme
Research Context:Plasma-Surface Interactions in Controlled Fusion Devices (PSI-15), Gifu, 2002-05-26 to 2002-05-31
Date of Publication (YYYY-MM-DD):2003
Title of Journal:Journal of Nuclear Materials
Journal Abbrev.:J. Nucl. Mater.
Start Page:925
End Page:930
Copyright:Copyright © 2003 Elsevier Science B.V. All rights reserved
Review Status:Peer-review
Audience:Experts Only
Abstract / Description:A 2D-tomographic reconstruction of D- and C III-emission distribution in L-mode, density limit
discharge has been performed and compared with results from other diagnostics (KL2, KS3). The
observed emission patterns in a poloidal plane show a strong in–out asymmetry, which depends on
local plasma parameter in the divertor. It is shown that the major contribution to D-emission,
under the observed conditions, lies in excitation processes and that low-energy charge-exchange
reactions with neutral deuterium can influence the ionisation balance of carbon and the recorded C
III-emission line. The evolution of the intrinsic hydrogen and carbon impurity profiles has been
analysed with respect to its dependence on the location of methane fuelling.
External Publication Status:published
Document Type:Article
Communicated by:N. N.
Affiliations:MPI für Plasmaphysik/TOK
External Affiliations:Institut für Plasmaphysik, Forschungszentrum Jülich GmbH, EURATOM Association, Trilateral Euregio Cluster (TEC), D-52425, Jülich, Germany; Euratom/UKAEA Fusion Association, Culham Science Centre, Abingdon, Oxon OX14 3DB, UK; FOM-Instituut voor Plasmafysica, P.O. Box 1207, 3430 BE, Nieuwegein, The Netherlands; Japan Atomic Energy Research Institute, Naka-machi, Ibaraki-ken 311-0193, Japan; Institute of High Temperatures, Russian Academy of Sciences, 127412, Moscow, Russian Federation
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