Point-spread function and photon transfer of a CCD for space-based astronomy

Edgar A. H. Allanwood; Neil J. Murray; Konstantin D. Stefanov; David J. Burt; Andrew D. Holland

doi:10.1117/12.2024263

26 September 2013 Point-spread function and photon transfer of a CCD for space-based astronomy

Edgar A. H. Allanwood, Neil J. Murray, Konstantin D. Stefanov, David J. Burt, Andrew D. Holland

Proceedings Volume 8860, UV/Optical/IR Space Telescopes and Instruments: Innovative Technologies and Concepts VI; 88600I (2013) https://doi.org/10.1117/12.2024263
Event: SPIE Optical Engineering + Applications, 2013, San Diego, California, United States

Abstract

A front-illuminated development Euclid charge-coupled device (CCD) is tested to observe the CCD point-spread function (PSF) relative to signal size using a single-pixel photon transfer curve (SP-PTC) technique. In the process of generating a SP-PTC charge redistribution effects were observed. In attempting to show that charge redistribution can be caused by exposing a charge-populated well in the CCD array to further illumination, excess charge became apparent in recorded data. Excess charge is suggested to be proportionally generated in the CCD array if existing charge is subjected to further illumination before transfer and readout. The construction of an optical test bench and CCD operating variables are discussed alongside systematic error concerns and mitigation techniques.

Citation Download Citation

Edgar A. H. Allanwood, Neil J. Murray, Konstantin D. Stefanov, David J. Burt, and Andrew D. Holland "Point-spread function and photon transfer of a CCD for space-based astronomy", Proc. SPIE 8860, UV/Optical/IR Space Telescopes and Instruments: Innovative Technologies and Concepts VI, 88600I (26 September 2013); https://doi.org/10.1117/12.2024263

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