Title :
Measurement of antenna S-parameters and their application to the analysis of resonance loop system for the ICRF heating of fusion plasmas
Author :
Kim, S.H. ; Wang, S.J. ; Kwak, J.G.
Author_Institution :
Korea Atomic Energy Res. Inst., Daejeon, South Korea
Abstract :
It is important to accurately measure the ICRF antenna parameters for the estimation of RF power transmission to KSTAR fusion plasmas. Due to the complexity of a 4-loop antenna with mutual couplings, it is not easy to measure those parameters directly. In this presentation, a method to determine those antenna parameters more precisely by applying measured S-parameters to a coupled transmission line model is introduced, and the characteristics of the resonance loop of the KSTAR ICRF system for the heating of KSTAR fusion plasmas are analyzed by using the determined parameters.
Keywords :
Tokamak devices; antennas in plasma; plasma diagnostics; plasma radiofrequency heating; plasma toroidal confinement; ICRF antenna parameter; ICRF heating; KSTAR fusion plasma; KSTAR tokamak plasma; RF power transmission; antenna S-parameter measurement; coupled transmission line model; resonance loop system analysis; Antenna measurements; Heating; Plasma applications; Plasma measurements; Plasma properties; Power measurement; Resonance; Scattering parameters; Transmission line measurements; Transmitting antennas;
Conference_Titel :
Precision Electromagnetic Measurements (CPEM), 2010 Conference on
Conference_Location :
Daejeon
Print_ISBN :
978-1-4244-6795-2
DOI :
10.1109/CPEM.2010.5544202
