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9 January 1984 Experience With 800 X 800 Virtual Phase And 500 X 500 Three-Phase CCD Imagers
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Abstract
A description of the Galileo/Institute for Astronomy charge-coupled device (CCD) imaging system and its initial operation has been presented previously. Originally designed to operate a Texas Instruments (TI) 500 x 500 backside illuminated three-phase CCD, the system has been modified to allow use of either the 500 x 500 sensor or the TI 800 x 800 virtual phase CCD. We discuss the modifications for and the operation of the virtual phase CCD and current system performance with each type of sensor. We also describe our implementation of various techniques discovered at the Jet Propulsion Laboratory (JPL) that improve imager performance. These techniques include tri-level clocking of the virtual phase CCD to elim-inate spurious charge generation in the serial register, the use of ultraviolet light flood with the backside thinned 500 x 500 three-phase device to dramatically improve the quantum efficiency in the blue, and the practical elimination of deferred charge in the three-phase device. Results of astronomical observations with each sensor are presented.
© (1984) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
R J Hlivak, J P Henry, and C B Pilcher "Experience With 800 X 800 Virtual Phase And 500 X 500 Three-Phase CCD Imagers", Proc. SPIE 0445, Instrumentation in Astronomy V, (9 January 1984); https://doi.org/10.1117/12.966136
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