Effects of low temperature proton irradiation on a large area CCD for astrometric applications

Author

Hopkinson, Gordon ; Gare, Philippe ; Sarri, Giuseppe

Author_Institution

Surrey Satellite Technol. Ltd., Sevenoaks, UK

fYear

2009

fDate

14-18 Sept. 2009

Firstpage

388

Lastpage

395

Abstract

Charge transfer and dark current effects are compared for regions of a large area 4500 × 1966 pixel CCD irradiated with 7.4 MeV protons at -130°C and at room temperature. Post-annealing measurements were also performed. Although there are differences in the concentration of individual defects following warm and cold irradiation and after subsequent annealing steps, these differences were less than a factor 3.5 (and in most cases a factor 2) - with the room temperature irradiation giving a good estimate of the effects except for traps with emission time constant ~4 ms.

Keywords

CCD image sensors; annealing; astrometry; proton effects; CCD; astrometric application; charge transfer effect; dark current effect; electron volt energy 7.4 MeV; low temperature proton irradiation; picture size 1966 pixel; picture size 4500 pixel; post-annealing measurement; temperature -130 degC; warm-cold irradiation; Annealing; Charge coupled devices; Charge measurement; Delay; Protons; Radiation effects; Temperature measurement; Image sensors; proton radiation effects; radiation effects; satellite applications;

fLanguage

English

Publisher

ieee

Conference_Titel

Radiation and Its Effects on Components and Systems (RADECS), 2009 European Conference on

Conference_Location

Bruges

ISSN

0379-6566

Print_ISBN

978-1-4577-0492-5

Electronic_ISBN

0379-6566

Type

conf

DOI

10.1109/RADECS.2009.5994683

Filename

5994683