| Title | Real-time optical plasma boundary reconstruction for plasma position control at the TCV Tokamak |
| Publication Type | Journal Article |
| Year of Publication | 2014 |
| Authors | G. Hommen, M. de Baar, B.P Duval, Y. Andrebe, H.B Le, M.A Klop, N.J Doelman, G. Witvoet, M. Steinbuch, TCV team |
| Journal | Nuclear Fusion |
| Volume | 54 |
| Number | 7 |
| Pagination | 073018 |
| Abstract | A dual, high speed, real-time visible light camera setup was installed on the TCV tokamak to reconstruct optically and in real-time the plasma boundary shape. Localized light emission from the plasma boundary in tangential view, broadband visible images results in clearly resolved boundary edge-features. These projected features are detected in real-time and transformed to the poloidal plane to obtain a measurement of the plasma boundary. Plasma boundary reconstructions of diverted plasma discharges are presented, showing agreement of within 1 cm compared with magnetic equilibrium reconstruction. The resulting real-time plasma shape measurement is applied in a feedback control loop for the plasma position, demonstrating effective stabilization and tracking of the plasma vertical position. |
| DOI | 10.1088/0029-5515/54/7/073018 |
| Division | FP |
| Department | TP |
| PID | 6dc862485b6b1045595d0c48e382998f |
| Alternate Title | Nucl. Fusion |
| Label | OA |
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