TY - JOUR
T1 - Hybrid CMOS detectors for the Lynx X-ray surveyor high definition X-ray imager
AU - Hull, Samuel V.
AU - Falcone, Abraham D.
AU - Bray, Evan
AU - Wages, Mitchell
AU - Mcquaide, Maria
AU - Burrows, David N.
N1 - Funding Information:
We gratefully acknowledge support from the NASA APRA Detector Development Program, particularly support from grants NNX13AE57G and NNX17AE35G. We would also like to acknowledge Vincent Douence, Mihail Milkov, Yibin Bai, Mark Farris, Jianmei Pan, James Beletic, and the others at Teledyne Imaging Sensors for their useful discussions and collaboration on past hybrid CMOS developments, as well as for contributions to the operation and design of the small-pixel HCDs.
Publisher Copyright:
© The Authors. Published by SPIE under a Creative Commons Attribution 4.0 Unported License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI.
PY - 2019/4/1
Y1 - 2019/4/1
N2 - X-ray hybrid CMOS detectors (HCDs) are a promising candidate for future X-ray missions requiring high throughput and fine angular resolution along with large field-of-view, such as the high-definition X-ray imager (HDXI) instrument on the Lynx X-ray surveyor mission concept. These devices offer fast readout capability, low power consumption, and radiation hardness while maintaining high detection efficiency from 0.2 to 10 keV. In addition, X-ray hybrid CMOS sensors may be fabricated with small pixel sizes to accommodate high-resolution optics and have shown great improvements in recent years in noise and spectral resolution performance. In particular, 12.5-μm pitch prototype devices that include in-pixel correlated double sampling capability and crosstalk eliminating capacitive transimpedance amplifiers, have been fabricated and tested. These detectors have achieved read noise as low as 5.4 e-, and we measure the best energy resolution to be 148 eV (2.5%) at 5.9 keV and 78 eV (14.9%) at 0.53 keV. We will describe the characterization of these prototype small-pixel X-ray HCDs, and we will discuss their applicability to the HDXI instrument on Lynx.
AB - X-ray hybrid CMOS detectors (HCDs) are a promising candidate for future X-ray missions requiring high throughput and fine angular resolution along with large field-of-view, such as the high-definition X-ray imager (HDXI) instrument on the Lynx X-ray surveyor mission concept. These devices offer fast readout capability, low power consumption, and radiation hardness while maintaining high detection efficiency from 0.2 to 10 keV. In addition, X-ray hybrid CMOS sensors may be fabricated with small pixel sizes to accommodate high-resolution optics and have shown great improvements in recent years in noise and spectral resolution performance. In particular, 12.5-μm pitch prototype devices that include in-pixel correlated double sampling capability and crosstalk eliminating capacitive transimpedance amplifiers, have been fabricated and tested. These detectors have achieved read noise as low as 5.4 e-, and we measure the best energy resolution to be 148 eV (2.5%) at 5.9 keV and 78 eV (14.9%) at 0.53 keV. We will describe the characterization of these prototype small-pixel X-ray HCDs, and we will discuss their applicability to the HDXI instrument on Lynx.
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U2 - 10.1117/1.JATIS.5.2.021018
DO - 10.1117/1.JATIS.5.2.021018
M3 - Article
AN - SCOPUS:85069517849
SN - 2329-4124
VL - 5
JO - Journal of Astronomical Telescopes, Instruments, and Systems
JF - Journal of Astronomical Telescopes, Instruments, and Systems
IS - 2
M1 - 021018
ER -