Dedicated algorithm for the calculation of spatial Green´s Functions in a tokamak plasma environment

Author

Khaymedinova, Zhanna ; Vandenbosch, Guy A E

Author_Institution

Electr. Eng. Dept., KU Leuven, Leuven, Belgium

fYear

2012

fDate

26-30 March 2012

Firstpage

3622

Lastpage

3626

Abstract

This work presents the calculation of the Green´s Function (GF) for a magnetic current in a simplified cold-plasma environment. This Green´s function is important in the modeling and design of antennas for Ion Cyclotron Resonance Heating (ICRH) in Nuclear Fusion experiments on modern tokamaks. First, a generic analytic formula for the GF in spectral domain is obtained. It is proven that the singularities of the GF occur on a circular locus. Singularities and asymptotes are extracted analytically in spectral domain, after which an efficient inverse Fourier transformation (IFT) can be used to obtain the GF in the spatial domain.

Keywords

Fourier transforms; Green´s function methods; Tokamak devices; nuclear fusion; Tokamak plasma environment; dedicated algorithm; design of antennas; generic analytic formula; inverse Fourier transformation; ion cyclotron resonance heating; magnetic current; nuclear fusion; simplified cold-plasma environment; spatial Green´s functions; spectral domain; Antennas; Heating; Magnetic domains; Permittivity; Plasmas; Spectral analysis; GF; ICRH; antenna; asymptotes; cold plasma model; inverse Fourier transformation; nuclear fusion; permittivity tensor; singularities; spatial domain; spectral domain;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation (EUCAP), 2012 6th European Conference on

Conference_Location

Prague

Print_ISBN

978-1-4577-0918-0

Electronic_ISBN

978-1-4577-0919-7

Type

conf

DOI

10.1109/EuCAP.2012.6206174

Filename

6206174