Electron Cyclotron Emission Imaging (ECEI) is a diagnostic system which measures 2-D electron temperature profiles with high spatial-temporal resolution. Usually only the normalized electron temperature fluctuations are utilized to investigate the magnetohydrodynamics modes due to the difficulties of ECEI calibration. In this paper, we developed a self-dependent calibration method for 24 × 16 channel high-resolution ECEI on the Experimental Advanced Superconducting Tokamak. The technique of shape matching is applied to solve for the matrix of the calibration coefficients. The calibrated area is further expanded to an occupation ratio of 88% observation area by utilizing the features of sawtooth crash. The result is self-consistent and consistent with calibrated 1D ECE measurement.

A: Microwave Imaging Reflectometry (MIR) has been developed for measuring twodimensional electron density fluctuations on many Tokamaks. A MIR system with 96 pixels (12 poloidal × 8 radial) has been fabricated for EAST tokamak. In the paper, we present the evaluation results in laboratory bench test with details, including performance of the electronic system and optics. With an artificial target as the real plasma cutoff layer, it has been proved that the EAST MIR system has the capability to reconstruct the correct corrugated shape of cutoff layer. K: Plasma diagnostics -interferometry, spectroscopy and imaging; Plasma diagnosticshigh speed photography 1Corresponding author.

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