EBE/ECE Radiometry on COMPASS Tokamak – Design and First Measurements

0346360 - ÚFP 2011 RIV US eng C - Conference Paper (international conference)
Zajac, Jaromír - Preinhaelter, Josef - Urban, Jakub - Šesták, David - Křivská, Alena - Nanobashvili, S.
EBE/ECE Radiometry on COMPASS Tokamak – Design and First Measurements.
AIP Conference Proceedings RADIO FREQUENCY POWER IN PLASMAS. MELVILLE: American Institute of Physics, 2009 - (Bobkov, V.; Noterdaeme, J.), s. 473-476. AIP, 1187. ISBN 978-0-7354-0753-4. ISSN 0094-243X.
[Topical Conference on Radio Frequency in Plasmas/18th./. Gent (BE), 24.06.2009-26.06.2009]
R&D Projects: GA ČR GA202/08/0419
Institutional research plan: CEZ:AV0Z20430508
Keywords : electron Bernstein waves * electron cyclotron emission * plasma radiometry
Subject RIV: BL - Plasma and Gas Discharge Physics
http://scitation.aip.org/proceedings/confproceed/1187.jsp

COMPASS tokamak has started its operation in IPP Prague recently. A new 16-channel radiometry system has been designed and manufactured for the electron Bernstein / cyclotron wave emission (EBE / ECE) experiments. For EBE studies, based on EBW-X-O mode conversion, radiometry in Ka-band (26.5 - 40 GHz) will be used which corresponds to the fundamental EC harmonics for the low-Bt (Bo ~ 1.2 T) tokamak operation. Alternatively, an E-band antenna and front-end (60 - 73.5 / 76.5 - 90 GHz) will be used with the same 16-channel receiver for the conventional second harmonics ECE diagnostics. In the contribution the design of the system is described as well as the initial testing measurements on tokamak COMPASS.
Permanent Link: http://hdl.handle.net/11104/0187408