Assessment of Lower Hybrid Current Drive System for COMPASS

0371201 - ÚFP 2012 RIV FR eng C - Konferenční příspěvek (zahraniční konf.)
Fuchs, Vladimír - Harvey, R.W. - Cairns, R.A. - Urban, Jakub - Žáček, František - Peysson, Y. - Decker, J. - Preynas, M. - Goniche, M. - Hillairet, J.
Assessment of Lower Hybrid Current Drive System for COMPASS.
EPS Europhysics Conference Abstracts Volume 35G – Contributed papers. Mulhouse: European Physical Society, 2011 - (Becoulet, A.; Hoang, T.; Stroth, U.), P1.100-P1.100. EPS, 35G. ISBN 2-914771-68-1.
[European Physical Society Conference on Plasma Physics /38th./. Strasbourg (FR), 27.06.2011-01.07.2011]
Grant CEP: GA ČR GA202/07/0044; GA MŠMT 7G09042
Výzkumný záměr: CEZ:AV0Z20430508
Klíčová slova: Lower hybrid wave * tokamak * plasma
Kód oboru RIV: BL - Fyzika plazmatu a výboje v plynech
http://ocs.ciemat.es/EPS2011PAP/pdf/P1.100.pdf

The Prague IPP recently acquired from UKAEA Culham the COMPASS tokamak together with an incomplete 1.3 GHz lower hybrid (LH) system [1]. A proposal for an alternative 3.7 GHz COMPASS LH multi-junction antenna was previously presented in J. Hillairet et al., Nucl. Fusion 50, 125010,2010. We present herein simulations of Lower Hybrid Current Drive (LHCD), in support of a choice between the 1.3 GHz and the 3.7 GHz LH systems. The LHCD simulations are carried out with state-of-the-art ray tracing/Fokker-Planck codes C3PO/LUKE [4, 5] and GENRAY/CQL3D [6, 7]. These two suites of codes are very different in terms of organization and applied numerical methods. Despite these differences, and despite the very wide principal spectral component of COMPASS antenna (N//=1.7 at 1.3 GHz, N//=0.6 at 3.7 GHz)—essentially at the limit of geometrical optics—the two codes give compatible results in terms of power deposition and LHCD efficiency.
Trvalý link: http://hdl.handle.net/11104/0006809