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Proceedings Paper

Electro-optical testing of fully depleted CCD image sensors for the Large Synoptic Survey Telescope camera
Author(s): Peter E. Doherty; Pierre Antilogus; Pierre Astier; James Chiang; D. Kirk Gilmore; Augustin Guyonnet; Dajun Huang; Heather Kelly; Ivan Kotov; Petr Kubanek; Andrei Nomerotski; Paul O’Connor; Andrew Rasmussen; Vincent J. Riot; Christopher W. Stubbs; Peter Takacs; J. Anthony Tyson; Kurt Vetter
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Paper Abstract

The LSST Camera science sensor array will incorporate 189 large format Charge Coupled Device (CCD) image sensors. Each CCD will include over 16 million pixels and will be divided into 16 equally sized segments and each segment will be read through a separate output amplifier. The science goals of the project require CCD sensors with state of the art performance in many aspects. The broad survey wavelength coverage requires fully depleted, 100 micrometer thick, high resistivity, bulk silicon as the imager substrate. Image quality requirements place strict limits on the image degradation that may be caused by sensor effects: optical, electronic, and mechanical. In this paper we discuss the design of the prototype sensors, the hardware and software that has been used to perform electro-optic testing of the sensors, and a selection of the results of the testing to date. The architectural features that lead to internal electrostatic fields, the various effects on charge collection and transport that are caused by them, including charge diffusion and redistribution, effects on delivered PSF, and potential impacts on delivered science data quality are addressed.

Paper Details

Date Published: 12 August 2014
PDF: 17 pages
Proc. SPIE 9154, High Energy, Optical, and Infrared Detectors for Astronomy VI, 915418 (12 August 2014); doi: 10.1117/12.2056733
Show Author Affiliations
Peter E. Doherty, Harvard Univ. (United States)
Pierre Antilogus, Institut National de Physique Nucléaire et de Physique des Particules (France)
Pierre Astier, Institut National de Physique Nucléaire et de Physique des Particules (France)
James Chiang, SLAC National Accelerator Lab. (United States)
D. Kirk Gilmore, SLAC National Accelerator Lab. (United States)
Augustin Guyonnet, Institut National de Physique Nucléaire et de Physique des Particules (France)
Dajun Huang, Brookhaven National Lab. (United States)
Heather Kelly, SLAC National Accelerator Lab. (United States)
Ivan Kotov, Brookhaven National Lab. (United States)
Petr Kubanek, Institute of Physics of the ASCR, v.v.i. (Czech Republic)
Andrei Nomerotski, Brookhaven National Lab. (United States)
Paul O’Connor, Brookhaven National Lab. (United States)
Andrew Rasmussen, SLAC National Accelerator Lab. (United States)
Vincent J. Riot, Lawrence Livermore National Lab. (United States)
Christopher W. Stubbs, Harvard Univ. (United States)
Peter Takacs, Brookhaven National Lab. (United States)
J. Anthony Tyson, Univ. of California, Davis (United States)
Kurt Vetter, Brookhaven National Lab. (United States)


Published in SPIE Proceedings Vol. 9154:
High Energy, Optical, and Infrared Detectors for Astronomy VI
Andrew D. Holland; James Beletic, Editor(s)

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