Progress on the ITER Upper Launcher Control Systems

The main objective of the ITER ECRH Upper Launcher (UL) is to control magnetohydrodynamic (MHD) activity: sawtooth oscillations and neoclassical tearing modes. 170GHz RF beams are oriented and focused to obtain a maximum overlapping of the waists of all the beams throughout the deposition location range in the plasma. The steering of the beams is done using 8 independent steering mirrors (SM) placed in the front par t of each one of the four dedicated por t plugs. Accurate and rapid control of the SMs for directing the beams at the required location is crucial in order to achieve an efficient MHD control. An assessment of the SM first prototype capabilities to meet the ITER requirements has been carried out giving promising results for this application.


Presented at:
25th Symposium on Fusion Technology, Rostock, Germany, September 15-19, 2008
Year:
2008
Keywords:
Laboratories:
SPC
CRPP


Note: The status of this file is: EPFL only


 Record created 2009-04-20, last modified 2018-01-28

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