A successful demonstration of real-time, model-based control of the plasma current density profile has been made in JET. The safety factor profile was reconstructed using magnetic and polarimetric signals. Various predefined q-profile targets have been reached - in the least square approximation - using lower hybrid current drive as the only actuator, with a feedback control loop using the measurements from five fixed normalized radii.
All Science Journal Classification (ASJC) codes
- Nuclear Energy and Engineering
- Condensed Matter Physics
Mazon, D., Litaudon, X., Moreau, D., Pericoli-Ridolfini, V., Zabeo, L., Crisanti, F., De Vries, P., Felton, R., Joffrin, E., Murari, A., Riva, M., Tresset, G., & Zastrow, K. D. (2003). Active control of the current density profile in JET. Plasma Physics and Controlled Fusion, 45(7), -. https://doi.org/10.1088/0741-3335/45/7/102