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

Volume

42

Issue

6

fYear

2014

fDate

Jun-14

Firstpage

1785

Lastpage

1789

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.;

fLanguage

English

Journal_Title

Plasma Science, IEEE Transactions on

Publisher

ieee

ISSN

0093-3813

Type

jour

DOI

10.1109/TPS.2014.2315527

Filename

6822588