PPPL-3995 is available in pdf format (928 KB).

Assessment of ICRF Antenna Performance in Alcator C-Mod

Authors: G. Schilling, S.J. Wukitch, Y. Lin, N. Basse, P.T. Bonoli, E. Edlund, L. Lin, A. Parisot, and M. Porkolab

Date of PPPL Report: August 2004

Presented at: the Thirty-First EPS Conference on Plasma Physics, 28 June - 2 July 2004, London, United Kingdom.

The Alcator C-Mod has presented a challenge to install high-power ICRF antennas in a tight space. Modifications have been made to the antenna plasma-facing surfaces and the internal current-carrying structure in order to overcome performance limitations. At the present time, the antennas have exceeded 5 MW into plasma with heating phasing, up to 2.7 MW with current-drive phasing, with good efficiency and no deleterious effects.