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Published online by Cambridge University Press: 04 August 2017
A system with an electronomulitplier of two-stage microchannel plate and a vidicon TV camera is developed for two dimensional photon-counting imaging and is applied for astronomical observations at the Nasmyth focus of the 75cm alt-az telescope of the Sundai Observatory at Kita-Karuizawa (SOK). Some test results are shown here.