TY - GEN
T1 - Soft x-ray quantum efficiency of silicon hybrid CMOS detectors
AU - Prieskorn, Zachary R.
AU - Bongiorno, Stephen D.
AU - Burrows, David N.
AU - Falcone, Abraham D.
AU - Griffith, Christopher V.
AU - Nikoleyczik, Jonathan
PY - 2014
Y1 - 2014
N2 - Si Hybrid CMOS detectors (HCDs) are sensitive to X-rays between approximately 0.2 - 20 keV. HCDs can provide superior performance to traditional CCDs in multiple areas: faster read out time, windowed read out mode, less susceptible to radiation & micrometeoroid damage, and lower power consumption. X-ray detectors designed for use in astronomical observatories must have an optical blocking filter to prevent the detectors from being saturated by optical light. We have previously reported on the successful deposition of an Al optical blocking layer directly onto the surface of HCDs. These blocking filters were deposited with multiple thicknesses from 180 - 1000 Å and successfully block optical light at all thicknesses, with minimal impact expected on quantum efficiency at the energies of interest for these detectors. The thin Al layer is not expected to impact quantum efficiency at the energies of interest for these detectors. We report energy dependent soft X-ray quantum efficiency measurements for multiple HCDs with different optical blocking filter thicknesses.
AB - Si Hybrid CMOS detectors (HCDs) are sensitive to X-rays between approximately 0.2 - 20 keV. HCDs can provide superior performance to traditional CCDs in multiple areas: faster read out time, windowed read out mode, less susceptible to radiation & micrometeoroid damage, and lower power consumption. X-ray detectors designed for use in astronomical observatories must have an optical blocking filter to prevent the detectors from being saturated by optical light. We have previously reported on the successful deposition of an Al optical blocking layer directly onto the surface of HCDs. These blocking filters were deposited with multiple thicknesses from 180 - 1000 Å and successfully block optical light at all thicknesses, with minimal impact expected on quantum efficiency at the energies of interest for these detectors. The thin Al layer is not expected to impact quantum efficiency at the energies of interest for these detectors. We report energy dependent soft X-ray quantum efficiency measurements for multiple HCDs with different optical blocking filter thicknesses.
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U2 - 10.1117/12.2056566
DO - 10.1117/12.2056566
M3 - Conference contribution
AN - SCOPUS:84906336034
SN - 9780819496225
T3 - Proceedings of SPIE - The International Society for Optical Engineering
BT - High Energy, Optical, and Infrared Detectors for Astronomy VI
PB - SPIE
T2 - High Energy, Optical, and Infrared Detectors for Astronomy VI
Y2 - 22 June 2014 through 25 June 2014
ER -