Multiband reflectometry system for density profile measurement with high temporal resolution on JET tokamak

A new system has been installed on the JET tokamak consisting of six independent fast-sweeping reflectometers covering four bands between 44 and 150 GHz and using orthogonal polarizations. It has been designed to measure density profiles from the plasma edge to the center, launching microwaves throu...

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Veröffentlicht in:	Review of scientific instruments 2010-10, Vol.81 (10), p.10D939-10D939
Hauptverfasser:	Sirinelli, A, Alper, B, Bottereau, C, Clairet, F, Cupido, L, Fessey, J, Hogben, C, Meneses, L, Sandford, G, Walsh, M J
Format:	Artikel
Sprache:	eng
Schlagworte:	70 PLASMA PHYSICS AND FUSION TECHNOLOGY CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY JET TOKAMAK MICROWAVE RADIATION PLASMA DENSITY PLASMA DIAGNOSTICS POLARIZATION REFLECTION TIME RESOLUTION WAVEGUIDES
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Beschreibung
Zusammenfassung:	A new system has been installed on the JET tokamak consisting of six independent fast-sweeping reflectometers covering four bands between 44 and 150 GHz and using orthogonal polarizations. It has been designed to measure density profiles from the plasma edge to the center, launching microwaves through 40 m of oversized corrugated waveguides. It has routinely produced density profiles with a maximum repetition rate of one profile every 15 μs and up to 100,000 profiles per pulse.
ISSN:	0034-6748 1089-7623
DOI:	10.1063/1.3502329