Investigating Dark Current Random Telegraph Signal in a HgCdTe H4RG-10 Infrared Detector for Space Application

被引：0

作者：

Antonsanti, Aubin ^{[1
,2
]}

Ryder, Landen D. ^{[3
]}

Le Roch, Alexandre ^{[3
,4
]}

Waczynski, Augustyn ^{[4
]}

Miko, Laddawan ^{[3
]}

Delo, Greg ^{[3
]}

Cillis, Analia ^{[3
]}

Waczynski, Stefan ^{[3
]}

Feggans, Keith ^{[5
]}

Barth, Jonathan D. ^{[3
]}

Goiffon, Vincent ^{[4
]}

Virmontois, Cedric ^{[6
]}

Hill, Robert J. ^{[7
]}

Wollack, Edward ^{[3
]}

Lauenstein, Jean-Marie ^{[3
]}

机构：

[1] NASA Goddard Space Flight Ctr NASA GFSC, Southeastern Univ Res Assoc, Greenbelt, MD 20771 USA

[2] Univ Toulouse, ISAE SUPAERO, F-31055 Toulouse, France

[3] NASA Goddard Space Flight Ctr NASA GSFC, Greenbelt, MD 20771 USA

[4] Univ Toulouse, ISAE SUPAERO, F-31055 Toulouse, France

[5] NASA Goddard Space Flight Ctr NASA GSFC, Sigma Space Corp, Greenbelt, MD 20771 USA

[6] Ctr Natl Etud Spatiales CNES, F-31400 Toulouse, France

[7] Conceptual Analyt LLC, NASA Goddard Space Flight Ctr NASA GSFC, Greenbelt, MD 20771 USA

来源：

IEEE TRANSACTIONS ON NUCLEAR SCIENCE | 2024年 / 71卷 / 08期

基金：

美国国家航空航天局;

关键词：

Detectors; Dark current; Radiation effects; Protons; Current measurement; Annealing; NASA; Dark current random telegraph signal (DC-RTS or RTS); infrared image sensors; mercury-cadmium-telluride (HgCdTe or MCT); near infrared (NIR); nonionizing energy loss (NIEL); proton irradiation; total ionizing dose (TID); total nonionizing dose (TNID); RTS;

D O I：

10.1109/TNS.2024.3368765

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Dark current random telegraph signal (DC-RTS, RTS in the following) characteristics of astronomical H4RG-10 HgCdTe near-infrared (NIR) image sensors are investigated before irradiation, for cumulative radiation dose up to 5 krad(Si), and for subsequent thermal annealing. This study is carried out as part of the qualification testing for the Roman Space Telescope (RST) Wide Field Instrument (WFI) sensor chip assembly (SCA). Two proton energies, 64 and 9 MeV, are explored using one detector per energy. Prerad results show an RTS part-to-part variability that is highly correlated with initial dark current variability. Prerad and post-rad RTS pixels share the same physical characteristics, suggesting a common physical origin. RTS pixel occurrence and location are also found to be very sensitive to room-temperature annealing. Results show that the RTS pixel population after irradiation approximates 0.037% of the pixels in the worst case, thus resulting in a very limited impact on the sensor's performance degradation up to the proton fluences in this study.

引用

页码：1738 / 1746

页数：9