Saturation of Alfven modes in tokamaks

Dataset · Tue Nov 01 00:00:00 EDT 2016

DOI:https://doi.org/10.11578/1366751· OSTI ID:1366751

White, R.  ^[1]; Gorelenkov, N. ^[1]; Gorelenkova, M. ^[1]; Podesta, M.  ^[1]; Ethier, S.; Chen, Y.

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1. Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)

Growth of Alfven modes driven unstable by a distribution of high energy particles up to saturation is investigated with a guiding center code, using numerical eigenfunctions produced by linear theory and a numerical high energy particle distribution, in order to make detailed comparison with experiment and with models for saturation amplitudes and the modification of beam profiles. Two innovations are introduced. First, a very noise free means of obtaining the mode-particle energy and momentum transfer is introduced, and secondly, a spline representation of the actual beam particle distribution is used.

• Research Organization: Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
• Sponsoring Organization: USDOE Office of Science (SC), Fusion Energy Sciences (FES)
• DOE Contract Number: AC02-09CH11466
• OSTI ID: 1366751
• Resource Relation: Related Information: Plasma Physics and Controlled Fusion, Vol. 58, page 115007 (November 2016)
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
TAE modes
Saturation