Effects of proton irradiation on a SAPHIRA HgCdTe avalanche photodiode array

Xiaoli Sun; Wei Lu; Guangning Yang; Sachidananda Babu; Jean-Marie Lauenstein; Alexandre Le Roch; Ian Baker

doi:10.1117/12.2619106

27 May 2022 Effects of proton irradiation on a SAPHIRA HgCdTe avalanche photodiode array

Xiaoli Sun, Wei Lu, Guangning Yang, Sachidananda Babu, Jean-Marie Lauenstein, Alexandre Le Roch, Ian Baker

Proceedings Volume 12107, Infrared Technology and Applications XLVIII; 121070D (2022) https://doi.org/10.1117/12.2619106
Event: SPIE Defense + Commercial Sensing, 2022, Orlando, Florida, United States

Abstract

We present the results from a radiation damage test of a HgCdTe avalanche photodiode (APD) array developed by Leonardo UK for potential NASA space lidar applications. The device being tested is a high-speed variant of the SAPHIRA family HgCdTe APD arrays used in astronomy. Test results show that the device remains fully operational at normal bias level under proton flux anticipated in space. The average dark current started to rise above the noise floor after 2 krad(Si) accumulated dose. However, the APD dark currents increased by more than an order of magnitude after the device was warmed up to room temperature for two hours and cooled to 80 K again. The dark currents returned to their pre-irradiation levels after being heated to 344 K (70°C) for about two hours. There was little change in the quantum efficiency and APD gain after 50 krad(Si) and annealing.

Conference Presentation

Citation Download Citation

Xiaoli Sun, Wei Lu, Guangning Yang, Sachidananda Babu, Jean-Marie Lauenstein, Alexandre Le Roch, and Ian Baker "Effects of proton irradiation on a SAPHIRA HgCdTe avalanche photodiode array", Proc. SPIE 12107, Infrared Technology and Applications XLVIII, 121070D (27 May 2022); https://doi.org/10.1117/12.2619106

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