High Dielectric Dummy Loads for ITER ICRH Antenna Laboratory Testing: Numerical Simulation of One Triplet Loading by Ferroelectric Ceramics

Journal Article · Fri Dec 23 00:00:00 EST 2011 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3664924· OSTI ID:21612510

Champeaux, S; Gouard, Ph ^[1]; Bottollier-Curtet, H ^[2]; Dumortier, P; Koch, R; Kyrytsya, V; Messiaen, A ^[3]

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1. CEA, DAM, DIF, F-91297 Arpajon (France)
2. CEA, IRFM, F-13108 Saint-Paul-lez-Durance (France)
3. Laboratory of Plasma Physics, Association EURATOM-Belgian State, Trilateral Euregio Cluster, Royal Military Academy, B-1000 Brussels (Belgium)

Up to now, classical 'water' loads have been used for low power testing of ITER ICRH prototype or mock-up antennas . A fair description of the antenna frequency response is obtained excepted for the phasing (0 {pi} 0 {pi}). High dielectric loads are requested to improve the antenna response in the low frequency band. In view of laboratory testing, dummy loads are also required to have efficient wave spatial attenuation to avoid standing waves and to minimize load volume. In this paper, barium titanate ceramic powders mixed with water are shown to exhibit very attractive electromagnetic properties. Coupling performance of one triplet of the ITER ICRH antenna to such kind of loads is numerically investigated. The radiated wave attenuation into the load is also characterized. In spite of its frequency dispersion, 'barium titanate' loads are shown to allow the characterization of the full scale triplet frequency response on a scaled-down mock-up.

• OSTI ID: 21612510
• Journal Information: AIP Conference Proceedings, Vol. 1406, Issue 1; Conference: 9. topical conference on radio frequency power in plasmas, Newport (United States), 1-3 Jun 2011; Other Information: DOI: 10.1063/1.3664924; (c) 2011 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ANTENNAS
ATTENUATION
BARIUM COMPOUNDS
CERAMICS
COMPUTERIZED SIMULATION
COUPLING
ELECTROMAGNETIC RADIATION
FERROELECTRIC MATERIALS
ICR HEATING
ITER TOKAMAK
LOADING
NUMERICAL ANALYSIS
PERFORMANCE
PERMITTIVITY
PLASMA
STANDING WAVES
TESTING
TITANATES
ALKALINE EARTH METAL COMPOUNDS
CLOSED PLASMA DEVICES
DIELECTRIC MATERIALS
DIELECTRIC PROPERTIES
ELECTRICAL EQUIPMENT
ELECTRICAL PROPERTIES
EQUIPMENT
HEATING
HIGH-FREQUENCY HEATING
MATERIALS
MATERIALS HANDLING
MATHEMATICS
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
PLASMA HEATING
RADIATIONS
SIMULATION
THERMONUCLEAR DEVICES
THERMONUCLEAR REACTORS
TITANIUM COMPOUNDS
TOKAMAK DEVICES
TOKAMAK TYPE REACTORS
TRANSITION ELEMENT COMPOUNDS