Author/Authors :
Zhao، نويسنده , , Y.P. and Zhang، نويسنده , , X.J. and Mao، نويسنده , , Y.Z. and Yuan، نويسنده , , S. and Xue، نويسنده , , D.Y and Deng، نويسنده , , X. and Wang، نويسنده , , L. and Ju، نويسنده , , S.Q. and Cheng، نويسنده , , Y. and Qin، نويسنده , , C.M. and Chen، نويسنده , , G. and Lin، نويسنده , , Y. and Li، نويسنده , , J.G. and Wan، نويسنده , , B.N. and Song، نويسنده , , Y.T. and Braun، نويسنده , , F. and Kumazawa، نويسنده , , R. and Wukitch، نويسنده , , S.، نويسنده ,
Abstract :
Radio frequency (RF) power in the ion cyclotron range of frequencies (ICRF) is one of the primary auxiliary heating techniques for Experimental Advanced Superconducting Tokamak (EAST). The ICRF system for EAST has been developed to support long-pulse high-β advanced tokamak fusion physics experiments. The ICRF system is capable of delivering 12 MW 1000-s RF power to the plasma through two antennas. The phasing between current straps of the antennas can be adjusted to optimize the RF power spectrum. The main technical features of the ICRF system are described. Each of the 8 ICRF transmitters has been successfully tested to 1.5 MW for a wide range of frequency (25–70 MHz) on a dummy load. Part of the ICRF system was in operation during the EAST 2012 spring experimental campaign and a maximum power of 800 kW (at 27 MHz) lasting for 30 s has been coupled for long pulse H mode operation.
