 DOCUMENT METADATASLAC Technical Note: SLAC-TN-15-024
SLAC Release Date: August 22, 2015
Testing an e2v CCD230-42 Sensor for Dark Current Performance at Ambient Temperatures - Final Paper
Dungee, Ryan.
The design of the Guidance Focus and Alignment (GFA) system for the Dark Energy Spectroscopic Instrument (DESI) project calls for a set of charge-coupled devices (CCDs) which operate at ambient temperature. Here we assess the performance of these CCDs under such conditions. Data was collected from -21 deg C to 28 deg C and used to determine the effect of temperature on the effectiveness of dark current subtraction. Comparing the dark current uncertainty to our expected signal has shown that the ... Show Full Abstract
The design of the Guidance Focus and Alignment (GFA) system for the Dark Energy Spectroscopic Instrument (DESI) project calls for a set of charge-coupled devices (CCDs) which operate at ambient temperature. Here we assess the performance of these CCDs under such conditions. Data was collected from -21 deg C to 28 deg C and used to determine the effect of temperature on the effectiveness of dark current subtraction. Comparing the dark current uncertainty to our expected signal has shown that the DESI design specifications will be met without need for significant changes. Show Partial Abstract
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