Title :
Divertor Erosion Monitoring in ITER Using Two-Wavelength Speckle Interferometry
Author :
Gauthier, E. ; Colledani, G. ; Jourd´heuil, L. ; Patterlini, Jean-Claude ; Migozzi, Jean-Blaise ; Jacquot, Pierre
Author_Institution :
Res. Inst. on Magn. Fusion, Commissariat Energie Atomique, St. Paul-lez-Durance, France
Abstract :
ITER will operate long-time discharges (400 s) at high performances (Q=10) and will have to satisfy strong safety and operational limits in term of tritium and dust inventory. This implies to control the erosion of the plasma facing components. Erosion monitoring diagnostic based on speckle interferometry and an optical design with its implementation in ITER are presented.
Keywords :
Tokamak devices; condition monitoring; discharges (electric); dusty plasmas; fusion reactor divertors; light interferometry; optical design techniques; plasma diagnostics; plasma toroidal confinement; titanium; ITER; Ti; divertor erosion monitoring; dust; erosion monitoring diagnostic; long-time discharges; optical design; plasma facing components; tritium; two-wavelength speckle interferometry; Adaptive optics; Laser beams; Measurement by laser beam; Mirrors; Optical interferometry; Speckle; Tokamaks; Dust; ITER; erosion and deposition; first wall; interferometry; laser; laser.;
Journal_Title :
Plasma Science, IEEE Transactions on
DOI :
10.1109/TPS.2014.2315527
