Cobalt60 and proton radiation effects on large format, 2-D, CCD arrays for an Earth imaging application

Author

Hopkinson, G.R.

Author_Institution

Sira Ltd., Chislehurst, UK

Volume

39

Issue

6

fYear

1992

fDate

12/1/1992 12:00:00 AM

Firstpage

2018

Lastpage

2025

Abstract

Cobalt60 and 10-MeV proton irradiations have been carried out on n-buried channel frame transfer CCDs (charge coupled devices) in order to study changes in charge transfer efficiency (CTE) and dark current for room temperature, 1 μs/pixel, readout conditions. Bias dependence and post-annealing effects were observed for ionization damage. CTE effects are explained in terms of capture and emission from deep level traps. Temporal instabilities (random telegraph signals) were observed in the proton-induced dark current

Keywords

CCD image sensors; deep levels; gamma-ray effects; geophysical equipment; proton effects; 10 MeV; Earth imaging application; charge transfer efficiency; dark current; deep level traps; gamma irradiation; ionization damage; large format 2D CCD arrays; n-buried channel frame transfer CCDs; post-annealing effects; proton radiation effects; random telegraph signals; room temperature; spaceborne instrumentation; temporal instabilities; Charge coupled devices; Clocks; Dark current; Earth; Instruments; Ionization; Pixel; Proton radiation effects; Temperature; Testing;

fLanguage

English

Journal_Title

Nuclear Science, IEEE Transactions on

Publisher

ieee

ISSN

0018-9499

Type

jour

DOI

10.1109/23.211399

Filename

211399