Development of a spectroscopic diagnostic tool for electric field measurements in IShTAR (Ion cyclotron Sheath Test ARrangement)

A. Kostic, R. Dux, K. Crombé, A. Nikiforov, R. Ochoukov, I. Shesterikov, E. H. Martin, J. M. Noterdaeme

Research output: Contribution to journalArticlepeer-review

Abstract

IShTAR, Ion cyclotron Sheath Test ARrangement, is a linear device dedicated to the investigation of the edge plasma-ICRF (Ion Cyclotron Range of Frequencies) antenna interactions in tokamak edge-like conditions and serves as a platform for a diagnostic development for measuring the electric fields in the vicinity of ICRF antennas. We present here our progress in the development of an optical emission spectroscopy method for measuring the electric fields which concentrates on the changes in the helium spectral line profiles introduced by the external electrical field, i.e., the Stark effect. To be able to fully control the operating parameters, at the first stage of the study, the measurements are conducted on a planar electrode installed in the centre of the plasma column in IShTAR's helicon plasma source. At the second stage, the measurements are performed in the vicinity of IShTAR's ICRF antenna.

Original languageEnglish
Article number10D115
JournalReview of Scientific Instruments
Volume89
Issue number10
DOIs
Publication statusPublished - 1 Oct 2018

Fingerprint

Dive into the research topics of 'Development of a spectroscopic diagnostic tool for electric field measurements in IShTAR (Ion cyclotron Sheath Test ARrangement)'. Together they form a unique fingerprint.

Cite this