Performance and Planned Upgrades to the 2-D ECEI Diagnostic on TEXTOR

POSTER

Abstract

In collaboration with PPPL and FOM, UC Davis has developed and installed a 128 channel 2-D Electron Cyclotron Emission Imaging (ECEI) instrument on TEXTOR. In its present form, each array element of the 16 channel mixer array measures plasma emission at 8 simultaneous frequencies to form a 16x8 image of the plasma electron temperature distribution. Details regarding the ECEI system design and current status will be presented along with recent TEXTOR plasma data. A planned upgrade in 2006 will increase the plasma coverage from the 16 cm (vertical) x 6 cm (horizontal) to 18 cm x 12 cm. Designs will also be presented of a proposed 576 channel (24x24 image) system which is capable of visualizing temperature fluctuations over an area of 24 cm x 24 cm.

*Supported by U.S. DoE Grants DE-FG02-99ER54531 and DE-AC02-76-CHO-307, and by NWO and the Association EURATOM-FOM.

Authors

  • C.W. Domier

  • N.C. Luhmann, Jr.

    • UC Davis

  • M. Spillane

  • J. Wang

  • Z.G. Xia

    • UC Davis
    • UC DAVIS

  • H. Park

    • PPPL

  • E. Mazzucato

    • PPPL

  • I.G.J. Classen

  • M.J. van de Pol

  • A.J.H. Donne

    • FOM-INSTITUTE FOR PLASMA PHYSICS RIJNHUIZEN