Modification of Current Profile, Toroidal Rotation and Pedestal by Lower Hybrid Waves in Alcator C-Mod

Journal Article · Thu Nov 26 00:00:00 EST 2009 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3273757· OSTI ID:21335734

Parker, R; Bonoli, P T; Meneghini, O; Porkolab, M; Schmidt, A E; Shiraiwa, S; Wallace, G; Hubbard, A E; Hughes, J W; Ko, J -S; McDermott, R M; Reinke, M L; Rice, J E ^[1]; Wilson, J R; Scott, S ^[2]

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1. MIT Plasma Science and Fusion Center, Cambridge, MA 02139 (United States)
2. Princeton Plasma Physics Laboratory, Princeton, N. J. 08543 (United States)

Recent results from the lower hybrid current drive experiments on Alcator C-Mod are presented. These include i) MSE measurements of broadened LHCD current profiles; ii) development of counter rotation comparable to the rate of injected wave momentum; iii) modification of pedestals and rotation in H-mode; and iv) development of a new FEM-based code that models LH wave propagation from the RF source to absorption in the plasma. An improved antenna concept that will be used in the upcoming C-Mod campaigns is also briefly described.

• OSTI ID: 21335734
• Journal Information: AIP Conference Proceedings, Vol. 1187, Issue 1; Conference: 18. topical conference on radio frequency power in plasmas, Gent (Belgium), 24-26 Jun 2009; Other Information: DOI: 10.1063/1.3273757; (c) 2009 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ALCATOR DEVICE
ANTENNAS
CERAMICS
COMPUTERIZED SIMULATION
ELECTRIC CURRENTS
FINITE ELEMENT METHOD
H-MODE PLASMA CONFINEMENT
LOWER HYBRID CURRENT DRIVE
LOWER HYBRID HEATING
PLASMA
PLASMA DENSITY
PLASMA DIAGNOSTICS
PLASMA SIMULATION
PLASMA WAVES
ROTATION
WAVE PROPAGATION