Computer Science – Performance
Scientific paper
Aug 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009spie.7439e...8d&link_type=abstract
Astronomical and Space Optical Systems. Edited by Warren, Penny G.; Marshall, Cheryl J.; Tyson, Robert K.; Lloyd-Hart, Michael;
Computer Science
Performance
Scientific paper
We present the initial performance test results for the H4RG-10 (A2), the second generation of the H4RG-10 visible CMOS-Hybrid Sensor Chip Assembly (SCA). The first science grade H4RG-10 (A2), delivered in 2009, is an evolution of the first generation A1, first delivered and tested in 2007. The H4RG-10 is primarily intended for ground- and space-based astronomical applications. Our evaluation focused on the performance parameters as they are related to astrometric applications. We find that the A2 SCA shows high pixel interconnect (99.6%), and low read noise (10-15 e- RMS) when operated at high speeds, consistent with A1 results. Most importantly, the H4RG-10 (A2) shows a dramatic improvement in dark current vs. the A1, with a two order of magnitude reduction in mean dark level and significantly reduced hot pixel population below 200 K.
Dorland Bryan N.
Dudik Rachel P.
Kan Emily
Swindle Ryan
Veillette Dan
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