Overview of LH Experiments in JET with an ITER-Like Wall

0399216 - ÚFP 2014 IT eng C - Conference Paper (international conference)
Kirov, K.K. - Barbato, E. - Baranov, Yu. - Brix, M. - Ekedahl, A. - Goniche, M. - Mailloux, J. - Petržílka, Václav - Rimini, F. - Stamp, M. … Total 11 authors
Overview of LH Experiments in JET with an ITER-Like Wall.
20th Topical conference on radio frequency power in plasmas Book of Abstracts. Roma: ENEA - Italian National Agency new Technologies, Energy and Sustainable Economic Development, 2013 - (Tuccillo, A.), "P3.13"-"P3.13". ENEA. ISBN 978-0-7354-1210-1. ISSN 0094-243X.
[Topical conference on radio frequency power in plasmas/20./. Sorrento (IT), 25.06.2013-28.06.2013]
Institutional support: RVO:61389021
Keywords : Ponderomotive forces
Subject RIV: BL - Plasma and Gas Discharge Physics
http://www.frascati.enea.it/maratea2002/MIO/BoAbstract_v5pdf

An overview of the recent results of Lower Hybrid (LH) experiments at JET with the ITER-like wall (ILW) is presented.Topics relevant to LH wave coupling are addressed as well as issues related to ILW and LH system protections.LH wave coupling was studied in conditions determined by ILW recycling and operational constraints.It was concluded that LH wave coupling was not significantly affected and the pre-ILW performance could be recovered after optimising the launcher position and local gas puffing.SOL density measurements were performed using a Li-beam diagnostic. Dependencies on the D2 injection rate from the dedicated gas valve,the LH power and the LH launcher position were analysed.SOL density modifications due to LH were modelled by the EDGE2D code assuming SOL heating by collisional dissipation of the LH wave and/or possible ExB drifts in the SOL.The simulations matched reasonably well the measured SOL profiles.Observations of arcs and hotspots with visible and IR cameras viewing
Permanent Link: http://hdl.handle.net/11104/0226558