Design of quasi optical grills for the launch of microwaves into tokamak plasmas

Author

Preinhaelter, J. ; Irzak, M.A. ; Vahala, L. ; Vahala, G.

Author_Institution

Czechoslovak Acad. of Sci., Slovakia

fYear

1999

Firstpage

106

Abstract

Summary form only given. While lower hybrid (LH) waves are very efficient in controlling the current profiles in the outer edges of a plasma, it is very difficult to design standard multijunction grills to launch waves in the 5-8 GHz range because of cooling and structural stability. However, if one turns to the quasi-optical grill (QOG), one can design microwave launchers that are relatively simple and robust. Applications are made to design of QOG for ITER-like plasmas as well as EBW for NSTX plasmas.

Keywords

electromagnetic launchers; plasma electromagnetic wave propagation; plasma toroidal confinement; 5 to 8 GHz; EBW plasmas; ITER-like plasmas; NSTX plasmas; cooling; current profiles; lower hybrid waves; microwave launchers; microwaves launch; multijunction grills; quasi optical grills; structural stability; tokamak plasmas; Diffraction; Ion beams; Klystrons; Neutrons; Nuclear and plasma sciences; Plasma applications; Plasma stability; Plasma transport processes; Plasma waves; Tokamaks;

fLanguage

English

Publisher

ieee

Conference_Titel

Plasma Science, 1999. ICOPS '99. IEEE Conference Record - Abstracts. 1999 IEEE International Conference on

Conference_Location

Monterey, CA, USA

ISSN

0730-9244

Print_ISBN

0-7803-5224-6

Type

conf

DOI

10.1109/PLASMA.1999.829311

Filename

829311