Experimental investigation of ion cyclotron range of frequencies heating scenarios for ITER's half-field hydrogen phase performed in JET

TitleExperimental investigation of ion cyclotron range of frequencies heating scenarios for ITER's half-field hydrogen phase performed in JET
Publication TypeJournal Article
Year of Publication2012
AuthorsE. Lerche, D. Van Eester, T.J Johnson, T. Hellsten, J. Ongena, M.L Mayoral, D. Frigione, C. Sozzi, G. Calabro, M. Lennholm, P. Beaumont, T. Blackman, D. Brennan, A. Brett, M. Cecconello, I. Coffey, A. Coyne, K. Crombe, A. Czarnecka, R. Felton, C. Giroud, G. Gorini, C. Hellesen, P. Jacquet, V. Kiptily, S. Knipe, A. Krasilnikov, M. Maslov, I. Monakhov, C. Noble, M. Nocente, L. Pangioni, I. Proverbio, G. Sergienko, M. Stamp, W. Studholme, M. Tardocchi, V. Vdovin, T. Versloot, I. Voitsekhovitch, A. Whitehurst, E. Wooldridge, V. Zoita, JET-EFDA Contributors
JournalPlasma Physics and Controlled Fusion
Volume54
Number7
Pagination074008
Abstract

Two ion cyclotron range of frequencies (ICRF) heating schemes proposed for the half-field operation phase of ITER in hydrogen plasmas—fundamental H majority and second harmonic 3 He ICRF heating—were recently investigated in JET. Although the same magnetic field and RF frequencies ( f ≈ 42 MHz and f  ≈ 52 MHz, respectively) were used, the density and particularly the plasma temperature were lower than those expected in the initial phase of ITER. Unlike for the well-performing H minority heating scheme to be used in 4 He plasmas, modest heating efficiencies ( η = P absorbed / P launched 

URLhttp://stacks.iop.org/0741-3335/54/i=7/a=074008
DOI10.1088/0741-3335/54/7/074008
Division

FP

Department

PDG

PID

c7586e86396bb14ec0592fd5272dde01

Alternate TitlePlasma Phys. Control. Fusion

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