Characterization of gamma-ray-induced radiation effects on a commercial CMOS sensor for x-ray small satellites

Tyler Roth; Steve Tammes; Philip Kaaret; Casey DeRoo; Colin M. Packard

doi:10.1117/1.JATIS.8.2.026001

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Characterization of gamma-ray-induced radiation effects on a commercial CMOS sensor for x-ray small satellites

Journal article

Peer reviewed

Characterization of gamma-ray-induced radiation effects on a commercial CMOS sensor for x-ray small satellites

Tyler Roth, Steve Tammes, Philip Kaaret, Casey DeRoo and Colin M. Packard

Journal of astronomical telescopes, instruments, and systems, Vol.8(2), pp.026001-026001

04/01/2022

DOI: 10.1117/1.JATIS.8.2.026001

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Abstract

Commercially manufactured complementary metal–oxide–semiconductor (CMOS) sensors have demonstrated competitive x-ray spectral imaging performance to the charge-coupled devices flown on the Suzaku and Chandra missions without the cooling demands required of these sensors. This performance, in combination with their reduced costs, warrants regarding CMOS sensors as promising candidates for low-Earth orbit (LEO) x-ray small satellites. We investigate the radiation tolerance of these devices to the anticipated total ionizing dose (TID) radiation expected in LEO. We expose a backside-illuminated Sony IMX290LLR CMOS sensor to up to 12 krad of TID from Cs137 gamma-ray radiation. We find an increase in the abundance of noisy pixels with increasing dosage, but no discernible increase in the average dark signal or RMS noise. Measurements of the x-ray spectrum from a Fe55 source indicate no change in spectral resolution and only minor gain degradation with TID.

complementary metal–oxide–semiconductor image sensor

silicon

x-ray imaging

total ionizing dosage

backside-illuminated

sensor performance

x-ray spectroscopy

Details

Title: Subtitle: Characterization of gamma-ray-induced radiation effects on a commercial CMOS sensor for x-ray small satellites
Creators: Tyler Roth - University of Iowa
Steve Tammes - University of Iowa
Philip Kaaret - University of Iowa
Casey DeRoo - University of Iowa
Colin M. Packard - University of Iowa, Department of Physics and Astronomy, Iowa City, Iowa, United States
Resource Type: Journal article
Publication Details: Journal of astronomical telescopes, instruments, and systems, Vol.8(2), pp.026001-026001
Publisher: Society of Photo-Optical Instrumentation Engineers
DOI: 10.1117/1.JATIS.8.2.026001
ISSN: 2329-4124
eISSN: 2329-4221
Grant note: Award No. NNX16AL88H / Iowa Space Grant Consortium under NASA
Language: English
Date published: 04/01/2022
Academic Unit: Physics and Astronomy; University College Courses
Record Identifier: 9984428784802771

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