Author/Authors :
de la Luna، نويسنده , , M José Garcia-Cortés، نويسنده , , I and Tribaldos، نويسنده , , V and Tabarés، نويسنده , , F and Jiménez، نويسنده , , J.A. and Estrada، نويسنده , , T and Ascas??bar، نويسنده , , E and Cappa، نويسنده , , A and Castej?n، نويسنده , , F and Fern?ndez، نويسنده , , A and Herranz، نويسنده , , Likin، Konstantin M. نويسنده , , K and L?pez-Fraguas، نويسنده , , A and Mart??n، نويسنده , , R and McCarthy، نويسنده , , K and Pastor، نويسنده , , I and S?nchez، نويسنده , , J and Tafalla، نويسنده , , D and Zurro، نويسنده , , B، نويسنده ,
Abstract :
Electron cyclotron emission (ECE) measurements are used to investigate the changes in the electron temperature profile during on axis and off axis EC-heating in TJ-II stellarator. The modifications of the electron temperature profiles are discussed and compared with the predictions of ray tracing calculations. Recently, the two gyrotrons (PECRH ≤600 kW) were simultaneously applied for the plasma heating in TJ-II. ELM-like events are clearly observed in these plasmas. A first description of these phenomena is also presented.
