A new broadband ECRH system is currently under construction at the ASDEX Upgrade tokamak. This system employs multi-frequency gyrotrons step-tunable in the range 105-140 GHz. A set of two corrugated polarizer mirrors are applied to provide for an arbitrary polarization of the Gaussian beam injected into the plasma. The principal bandwidth of such a two-polarizer setup has been evaluated. It can be shown that two mirrors with sinusoidal grooves and corrugation depths adjusted to the center frequency of 122.5 GHz satisfy the requirements.
Polarizer design for multi-frequency high power ECRH transmission lines
2004-01-01
200759 byte
Conference paper
Electronic Resource
English
Broadband Polarizers for High-Power Multi-Frequency ECRH Systems
British Library Online Contents | 2005
|Quasioptical Transmission Lines for ECRH at TJ-II Stellarator
British Library Online Contents | 2000
|Design of an ECRH system for JET
IEEE | 2002
|Design of an ECRH System for JET
British Library Conference Proceedings | 2002
|