Community Research and Development Information Service - CORDIS

Abstract

Two possible techniques for the measurement of erosion/redeposition in the new JET divertor have been assessed: colour fringe analysis (CFA) and speckle interferometry. CFA is a simple technique in which the target is viewed with a colour camera, and can study deposited films up to 1 micron in thickness. Speckle interferometry is a powerful technique for following changes in surface topology, but its sensitivity of greater than 1 micron makes it better suited to the next generation of tokamaks.

Additional information

Authors: COAD J P, JET Joint Undertaking, Abingdon, Oxon. (GB);DE KOCK L, JET Joint Undertaking, Abingdon, Oxon. (GB);KOCH A, Max-Planck-Institut für Plasmaphysik, Garching bei München (DE);WILHELM R, Max-Planck-Institut für Plasmaphysik, Garching bei München (DE);WESCHENFELDER F, Forschungszentrum Jülich GmbH (DE);WIENHOLD P, Forschungszentrum Jülich GmbH (DE)
Bibliographic Reference: Report: JET-P(92)61 EN (1992) 12 pp.
Availability: Available from the Publications Officer, JET Joint Undertaking, Abingdon, Oxon. OX14 3EA (GB)
Record Number: 199211282 / Last updated on: 1994-11-29
Category: PUBLICATION
Original language: en
Available languages: en