Analysis of transient effects induced by neutrons on a CCD image sensor

Jacques Baggio; Martial Martinez; Claudine D'hose; Olivier Musseau

doi:10.1117/12.454383

28 January 2002 Analysis of transient effects induced by neutrons on a CCD image sensor

Jacques Baggio, Martial Martinez, Claudine D'hose, Olivier Musseau

Proceedings Volume 4547, Photonics for Space and Radiation Environments II; (2002) https://doi.org/10.1117/12.454383
Event: International Symposium on Remote Sensing, 2001, Toulouse, France

Abstract

This paper is focused on transient effects produced by neutrons and gamma on a CCD sensor. The main effect encountered, due to neutron interaction in the silicon is random excitation of individual pixel or pixel clusters. We have investigated the different image degradations with a 14 MeV pulsed neutron source as a function of angle of incidence and CCD camera parameters. A complete analysis has been achieved for all fluences between 10⁴ and 10⁷ c/cm² including spectra of neutron induced noise. 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 increase the background noise of the CCD. We have compared their effects to the previous results obtained with 14 MeV neutrons to discuss on image processing algorithms to correct these phenomena.

Citation Download Citation

Jacques Baggio, Martial Martinez, Claudine D'hose, and Olivier Musseau "Analysis of transient effects induced by neutrons on a CCD image sensor", Proc. SPIE 4547, Photonics for Space and Radiation Environments II, (28 January 2002); https://doi.org/10.1117/12.454383

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