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Microcomputer control of infrared detector arrays used in direct imaging and in Fabry-Perot spectroscopy

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1 Author(s)
Rossano, G.S. ; Aerosp. Corp., Los Angeles, CA, USA

A microcomputer-based data acquisition system has been developed for astronomical observation with two-dimensional infrared detector arrays operating at high pixel rates. The system is based on a 16-bit 8086/8087 microcomputer operating at 10 MHz. Data rates of up to 560000 pixels/s from arrays of up to 4096 elements are supported using the microcomputer system alone. A hardware co-adder under development permits data accumulation at rates of up to 1.67 million pixels/s in both staring and chopped data acquisition modes. The system has been used for direct imaging and for data acquisition in a Fabry-Perot spectrometer. The hardware is operated using interactive software which supports the several available modes of data acquisition and permits data display and reduction during observing sessions

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Nuclear Science, IEEE Transactions on  (Volume:36 ,  Issue: 1 )