Soft x-ray quantum efficiency of silicon hybrid CMOS detectors

Zachary R. Prieskorn; Stephen D Bongiorno; David N. Burrows; Abraham D. Falcone; Christopher V. Griffith; Jonathan Nikoleyczik

doi:10.1117/12.2056566

23 July 2014 Soft x-ray quantum efficiency of silicon hybrid CMOS detectors

Zachary R. Prieskorn, Stephen D Bongiorno, David N. Burrows, Abraham D. Falcone, Christopher V. Griffith, Jonathan Nikoleyczik

Author Affiliations +

Proceedings Volume 9154, High Energy, Optical, and Infrared Detectors for Astronomy VI; 915410 (2014) https://doi.org/10.1117/12.2056566
Event: SPIE Astronomical Telescopes + Instrumentation, 2014, Montréal, Quebec, Canada

Abstract

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.

Citation Download Citation

Zachary R. Prieskorn, Stephen D Bongiorno, David N. Burrows, Abraham D. Falcone, Christopher V. Griffith, and Jonathan Nikoleyczik "Soft x-ray quantum efficiency of silicon hybrid CMOS detectors", Proc. SPIE 9154, High Energy, Optical, and Infrared Detectors for Astronomy VI, 915410 (23 July 2014); https://doi.org/10.1117/12.2056566

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available