Transient noise in a CCD camera sensor induced by neutron and gamma irradiation

Author

Baggio, J. ; D´hose, C. ; Martinez, M. ; Musseau, O.

Author_Institution

CEA/DIF BP 12, Bruyeres-le-Chatel, France

fYear

2001

fDate

10-14 Sept. 2001

Firstpage

186

Lastpage

191

Abstract

This paper presents the transient radiation sensitivity for a 512×512 CCD image sensor irradiated with both 14 MeV neutrons and gamma rays. We have investigated the different image degradations with a pulsed neutron source as a function of angle of incidence and CCD camera parameters. A complete analysis has been achieved for fluences from 10⁴ to 10⁷ n/cm² including neutron induced noise spectra. We have found a linear dependence of the number of bright and saturated pixels with fluence. The number and size of pixel clusters increase with fluence, particularly for grazing angle. In a second time, we have investigated gamma effects which only increase the background noise of the CCD.

Keywords

CCD image sensors; gamma-ray effects; neutron effects; radiation hardening (electronics); semiconductor device noise; 14 MeV; CCD camera parameters; CCD camera sensor; background noise; bright pixels; gamma effects; gamma irradiation; image degradations; neutron induced noise spectra; neutron irradiation; pulsed neutron source; saturated pixels; transient noise; Charge coupled devices; Charge-coupled image sensors; Degradation; Gamma ray detectors; Laser fusion; Laser noise; Neutrons; Optical imaging; Protection; X-ray lasers;

fLanguage

English

Publisher

ieee

Conference_Titel

Radiation and Its Effects on Components and Systems, 2001. 6th European Conference on

Print_ISBN

0-7803-7313-8

Type

conf

DOI

10.1109/RADECS.2001.1159278

Filename

1159278