Computer Science – Performance
Scientific paper
Dec 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004aas...205.6604b&link_type=abstract
American Astronomical Society Meeting 205, #66.04; Bulletin of the American Astronomical Society, Vol. 36, p.1455
Computer Science
Performance
Scientific paper
The SuperNova / Acceleration Probe (SNAP) will measure approximately 2000 type Ia supernovae from redshift z=0.3 to 1.7 in nine photometric bands and perform a wide area weak lensing survey. This requires radiation hard CCDs with high resolution, low noise, low dark current, and high quantum efficiency (QE) from blue to near-infrared wavelengths. On this poster we report the current status and recent progress of the SNAP CCD development using UCB/LBNL thick (200-300 μ m) fully depleted CCDs. These CCDs have QE > 80% from 450 to 950 nm and maintain QE 50% at 1000 nm. This CCD technology has been deployed on 4 telescopes and has been selected as the technology choice for DECam, a 520 megapixel camera planned for installation at the Blanco 4-m telescope at CTIO. We describe the current performance, production, and packaging for these CCDs as well as future plans. This work has been supported by the U.S. Dept. of Energy, Office of Science, under contract DE-AC03-76SF00098.
Bailey Stephen J.
Bebek Chris J.
SNAP
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