A New Generation of Electron Cyclotron Emission Imaging System for Plasma Diagnostics

Electron cyclotron emission imaging (ECEI) is a novel millimeter wave plasma diagnostic technique, which has been extremely successful in the imaging and visualization of electron temperature profiles and fluctuations in magnetic fusion plasma devices. The unique feature of the ECEI diagnostic derives from the use of wideband, low cost planar Schottky diode mixer arrays coupled with innovative, low cost electronics. A new generation of ECE imaging diagnostics is now being developed to extend the current 128-channel system to systems with 256-1054 channels.