Observation of Cocurrent Toroidal Rotation in the EAST Tokamak with Lower-Hybrid Current Drive

• DOI: 10.1103/physrevlett.106.235001
• Publication Date: 2011-06-06T15:31:23Z
• Authors: Yuejiang Shi; Guosheng Xu; Fudi Wang; Mao Wang; Jia Fu; Yingying Li; Wei Zhang; Wei Zhang; Jiafeng Chang; Bo Lv; Jinping Qian; Jiafang Shan; Fukun Liu; Siye Ding; Baonian Wan; Sang-Gon Lee; Manfred Bitter; Kenneth Hill
• Keywords: Toroidal and poloidal; Equipartition theorem

Lower-hybrid waves have been shown to induce a cocurrent change in toroidal rotation of up 40 km/s the L-mode plasma core region and 20 edge EAST tokamak. This modification develops on different time scales. For edge, scale is no more than 100 ms, but for around 1 s. A simple model based turbulent equipartition thermoelectric pinch predicts experimental results.