A new CW-load for high power ECRH systems

Author

Braune, H. ; Erckmann, V. ; Hollmann, F. ; Kasparek, W. ; Noke, F. ; Purps, F. ; Schulz, T. ; Wagner, D.

Author_Institution

Max-Plank-Inst. fur Plasmaphysik, EURATOM Assoc., Garching and Greifswald, Germany

fYear

2011

fDate

2-7 Oct. 2011

Firstpage

1

Lastpage

2

Abstract

Plasma heating at upcoming thermonuclear fusion experiment facilities will be partially performed by large Electron Cyclotron Resonance Heating (ECRH) installations. The required pulse length is 1000 seconds (ITER specification) and more in order to meet the physical aims at Stellarators and Tokamaks as well. The conditioning and testing of the ECRH sources, high power gyrotrons, is an important task of these installations. CW operation under full power conditions requires a microwave load with a power level in the range of 1 MW. In the ECRH system at W7-X several types of loads are in operation but their long term stability needs to be improved. A new approach of load design will be discussed which is currently under test.

Keywords

Tokamak devices; plasma radiofrequency heating; plasma toroidal confinement; stellarators; CW operation; CW-load; ECRH sources; full power conditions; high power ECRH systems; high power gyrotrons; large electron cyclotron resonance heating installations; load design approach; long term stability; microwave load; plasma heating; power level; pulse length; stellarators; thermonuclear fusion experiment facilities; time 1000 s; tokamaks; Cooling; Electron tubes; Gyrotrons; Microwave measurements; Power measurement; Transmission line measurements;

fLanguage

English

Publisher

ieee

Conference_Titel

Infrared, Millimeter and Terahertz Waves (IRMMW-THz), 2011 36th International Conference on

Conference_Location

Houston, TX

ISSN

2162-2027

Print_ISBN

978-1-4577-0510-6

Electronic_ISBN

2162-2027

Type

conf

DOI

10.1109/irmmw-THz.2011.6105141

Filename

6105141