Ion transport barrier formation with low injected torque in JET

N.C. Hawkes, B. Esposito, Y. Andrew, T.M. Biewer, J.H. Brzozowski, M. Brix, A. Cardinali, F. Crisanti, K. Crombé, D. Van Eester, R. Felton, C. Giroud, T. Johnson, E. Lerche, A. Meigs, V. Parail, S. Sharapov, C. Sozzi, I. Voitsekhovitch, K.-D. Zastrow

Research output: Contribution to conferencePaper

Abstract

Ion temperature ITB trigger events have been provoked on JET with very low levels of injected torque using a3He minority ion heating scheme. The evidence indicates that E x B shear driven by toroidal rotation is not important in these ITB triggers, however the ITBs which form are weak and short lived. Evidence from other experiments [4], suggests that higher torque is necessary to establish and maintain strong ITBs. Future experiments with the increased RF power of the new JET ICRH antenna will be made to explore whether 'strong' ITBs can be created at high power and low applied torque.
Original languageEnglish
Publication statusPublished - 2007
Externally publishedYes
Event34th European Physical Society Conference on Plasma Physics 2007, EPS 2007 - , Poland
Duration: 1 Jan 2007 → …

Conference

Conference34th European Physical Society Conference on Plasma Physics 2007, EPS 2007
CountryPoland
Period1/1/07 → …

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All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics

Cite this

Hawkes, N. C., Esposito, B., Andrew, Y., Biewer, T. M., Brzozowski, J. H., Brix, M., ... Zastrow, K-D. (2007). Ion transport barrier formation with low injected torque in JET. Paper presented at 34th European Physical Society Conference on Plasma Physics 2007, EPS 2007, Poland.