MILLIMETER-WAVE PHASE-IMAGING INTERFEROMETRY USING 2-DIMENSIONAL DETECTOR ARRAY

A millimeter-a ave two-dimensional detector array has been newly devel oped for application to a phase-imaging interferometer installed in th e GAMMA10 tandem mirror. The detector has 4x4 channels consisting of b eam-lead GaAs Schottky barrier diodes bonded to bow-tie antennas on a quartz substrate. The imaging system is also applied to measurements o f electron cyclotron emission, which provides the spatial profile of w arm and hot electrons.