Electric field measurements of the LH wave and ICRF near-field utilizing non-perturbative spectroscopic techniques

E. H. Martin, J. B.O. Caughman, C. C. Klepper, M. Goniche, R. C. Isler, J. Hillairet, C. Bottereau

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations

Abstract

The physics of wave heating and current drive processes in the bulk hot plasma are generally well identified. However, details of the wave-plasma interaction in the cold plasma edge are still not fully understood. In this paper a spectroscopic technique allowing for measurements of the electric field driving wave-plasma interactions in the edge region for LH current drive and ICRH systems will be discussed. Experimental results obtained in Tore Supra near the LH C3 antenna and in the magnetized capacitively coupled RF sheath from an experiment designed to mimic the ICRF near-field are presented. In conclusion, future plans to implement a laser-based spectroscopic technique to acquire the high resolution measurements needed for model validation is discussed. This manuscript has been authored by UT-Battelle, LLC under Contract No. DE-AC05-00OR22725 with the U.S. Department of Energy. The United States Government retains and the publisher, by accepting the article for publication, acknowledges that the United States Government retains a non-exclusive, paid-up, irrevocable, world-wide license to publish or reproduce the published form of this manuscript, or allow others to do so, for United States Government purposes. The Department of Energy will provide public access to these results of federally sponsored research in accordance with the DOE Public Access Plan. (http://energy.gov/downloads/doe-public-access-plan)

Original languageEnglish
Title of host publicationRadio Frequency Power in Plasmas
Subtitle of host publicationProceedings of the 21St Topical Conference
EditorsRobert I. Pinsker
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735413368
DOIs
StatePublished - Dec 10 2015
Event21st Topical Conference on Radiofrequency Power in Plasmas - Lake Arrowhead, United States
Duration: Apr 27 2015Apr 29 2015

Publication series

NameAIP Conference Proceedings
Volume1689
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference21st Topical Conference on Radiofrequency Power in Plasmas
Country/TerritoryUnited States
CityLake Arrowhead
Period04/27/1504/29/15

Funding

We would like to thank Dr. D. L. Hillis and Dr. X. Litaudon for establishing and supporting the collaboration between ORNL/DOE and the IRFM/CEA. This work was supported in part by the US DOE under Contract No. DE-AC05-00OR22725 with UT-Battelle, LLC., and in part by the European Communities under the contract of Association between EURATOM and CEA and within the framework of the European Fusion Development Agreement. The views and opinions expressed herein do not necessarily reflect those of the European Commission.

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