Nonlinear impact of edge localized modes on carbon erosion in the divertor of the JET tokamak
Kreter, A.; Esser, H. G.; Brezinsek, S.; Coad, J. P.; Kirschner, A.; Fundamenski, Wojtek; Philipps, V.; Pitts, R. A.; Widdowson, A.
2009

Abstract

The impact of edge localized modes (ELMs) carrying energies of up to 450 kJ on carbon erosion in the JET inner divertor is assessed by means of time resolved measurements using an in situ quartz microbalance diagnostic. The inner target erosion is strongly nonlinearly dependent on the ELM energy: a single 400 kJ ELM produces the same carbon erosion as ten 150 kJ events. The ELM-induced enhanced erosion is attributed to the presence of codeposited carbon-deuterium layers on the inner divertor target, which are thermally decomposed under the impact of ELMs.

Details

Title Nonlinear impact of edge localized modes on carbon erosion in the divertor of the JET tokamak
Author(s) Kreter, A. ; Esser, H. G. ; Brezinsek, S. ; Coad, J. P. ; Kirschner, A. ; Fundamenski, Wojtek ; Philipps, V. ; Pitts, R. A. ; Widdowson, A.
Published in Physical Review Letters
Volume 102
Issue 4
Pages 045007
Date 2009
Publisher American Physical Society
ISSN 0031-9007
Keywords
DOI https://doi.org/10.1103/PhysRevLett.102.045007
Other identifier(s) View record in Web of Science
Laboratories CRPP
SPC
Record Appears in Scientific production and competences > SB - School of Basic Sciences > SPC - Swiss Plasma Center > SPC - Swiss Plasma Center
Peer-reviewed publications
Work outside EPFL
Journal Articles
Published
Record creation date 2010-05-28

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