RF-sheath assessment of ICRF Faraday Screens

Journal Article · Fri Sep 28 00:00:00 EDT 2007 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.2800479· OSTI ID:21032761

Colas, L ^[1]; Heuraux, S ^[2]

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1. Association Euratom-CEA, CEA/DSM/DRFC, CEA Cadarache, 13108 Saint-Paul lez Durance (France)
2. LPMIA, Unite du CNRS 7040, Universite Henri Poincare, BP 239, 54506 Vandoeuvre Cedex (France)

The line-integrated parallel RF electric field {delta}V{sub RF} is studied on 'long field lines' radially in front of an ICRF antenna closed by a Faraday screen (FS). Several issues are addressed analytically and numerically. To what extent is a FS necessary to shield {delta}V{sub RF} in presence of magnetized plasma, depending on strap phasing? How efficient is it as a function of FS misalignment on tilted magnetic field? Can a FS attenuate {delta}V{sub RF} produced on antenna frame?.

• OSTI ID: 21032761
• Journal Information: AIP Conference Proceedings, Vol. 933, Issue 1; Conference: 17. topical conference on radio frequency power in plasmas, Clearwater, FL (United States), 7-9 May 2007; Other Information: DOI: 10.1063/1.2800479; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ANTENNAS
ELECTRIC FIELDS
ICR HEATING
ION CYCLOTRON-RESONANCE
MAGNETIC FIELDS
PLASMA
PLASMA SHEATH
RF SYSTEMS