29 September 2004 The orthogonal-transfer array: a new CCD architecture for astronomy
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The orthogonal-transfer array (OTA) is a new CCD architecture designed to provide wide-field tip-tilt correction of astronomical images. The device consists of an 8x8 array of small (~500x500 pixels) orthogonal-transfer CCDs (OTCCD) with independent addressing and readout of each OTCCD. This approach enables an optimum tip-tilt correction to be applied independently to each OTCCD across the focal plane. The first design of this device has been carried out at MIT Lincoln Laboratory in support of the Pan-STARRS program with a collaborative parallel effort at Semiconductor Technology Associates (STA) for the WIYN Observatory. The two versions of this device are functionally compatible and share a common pinout and package. The first wafer lots are complete at Lincoln and at Dalsa and are undergoing wafer probing.
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Barry E. Burke, John Tonry, Michael Cooper, Gerard Luppino, George Jacoby, Richard Bredthauer, Kasey Boggs, Michael Lesser, Peter Onaka, Douglas Young, Peter Doherty, David Craig, "The orthogonal-transfer array: a new CCD architecture for astronomy", Proc. SPIE 5499, Optical and Infrared Detectors for Astronomy, (29 September 2004); doi: 10.1117/12.562490; https://doi.org/10.1117/12.562490


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