RF modeling and design of a folded waveguide launcher for the Alcator C-Mod tokamak

Author

Bigelow, T.S. ; Fogelman, C.F. ; Baity, F.W. ; Carter, M.D. ; Hoffman, D.J. ; Ryan, P.M. ; Yugo, J.J. ; Golovato, S.N. ; Bonoli, P.

Author_Institution

Oak Ridge Nat. Lab., TN, USA

Volume

2

fYear

1993

fDate

11-15 Oct 1993

Firstpage

1061

Abstract

The folded waveguide (FWG) launcher is being investigated as an improved antenna configuration for plasma heating in the ion cyclotron range of frequencies (ICRF). A development FWG launcher was successfully tested at Oak Ridge National Laboratory (ORNL) with a low-density plasma load and found to have significantly greater power density capability than current strap-type antennas operating in similar plasmas. To further test the concept on a high density tokamak plasma, a collaboration has been set up between ORNL and Massachusetts Institute of Technology (MIT) to develop and test an 80-MHz, 2-MW FWG on the Alcator C-Mod tokamak at MIT. The radiofrequency (RF) electromagnetic modeling techniques and laboratory measurements used in the design of this antenna are described in this paper, A companion paper describes the mechanical design of the FWG

Keywords

Tokamak devices; antennas in plasma; fusion reactor design; fusion reactors; plasma filled waveguides; plasma radiofrequency heating; plasma simulation; plasma toroidal confinement; 2 MW; 80 MHz; Alcator C-Mod tokamak; ICRF heating; RF modeling; folded waveguide launcher design; high density tokamak plasma; improved antenna configuration; ion cyclotron range of frequencies; laboratory measurements; low-density plasma load; mechanical design; plasma heating; power density capability; radio frequency electromagnetic modeling; strap-type antennas; Cyclotrons; Electromagnetic waveguides; Heating; Laboratories; Plasma density; Plasma measurements; Plasma waves; Radio frequency; Testing; Tokamaks;

fLanguage

English

Publisher

ieee

Conference_Titel

Fusion Engineering, 1993., 15th IEEE/NPSS Symposium on

Conference_Location

Hyannis, MA

Print_ISBN

0-7803-1412-3

Type

conf

DOI

10.1109/FUSION.1993.518505

Filename

518505