Title :
Tomographic Visualization for Plasma Position Control in ISTTOK
Author :
Carvalho, P.J. ; Coelho, R. ; Pereira, T. ; Duarte, P. ; Silva, C. ; Neto, A. ; Valcarcel, D.F. ; Figueiredo, A.C.A. ; Fernandes, H.
Author_Institution :
Centro de Fusao Nucl., Inst. Super. Tecnico, Lisbon
Abstract :
Plasma positioning on the ISTTOK tokamak has usually been done, resorting to magnetic pickup coils. However, during alternating current (ac)-type discharges with plasma current reversal, this method has been found to be inadequate. The recently installed tomography diagnostic can be an alternative for determining the plasma position. The presented image shows tomographic reconstructions of the ISTTOK plasma during ac discharges, showing the position of maximum and average emissivity positions.
Keywords :
Tokamak devices; optical tomography; photodiodes; plasma diagnostics; position control; ISTTOK tokamak; ac discharges; average emissivity position; maximum emissivity position; plasma position control; plasma tomography diagnostic; tomographic visualization; Coils; Image reconstruction; Photodiodes; Plasma diagnostics; Plasma temperature; Position control; Tokamaks; Tomography; Toroidal magnetic fields; Visualization; ISTTOK; real-time; tokamak; tomography;
Journal_Title :
Plasma Science, IEEE Transactions on
DOI :
10.1109/TPS.2004.924565
