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

• Published in: 2001 6th European Conference on Radiation and Its Effects on Components and Systems pp. 186 - 191
• Main Authors: Baggio, J., D'hose, C., Martinez, M., Musseau, O.
• Format: Conference Proceeding
• Language: English
• Published: IEEE 2001
• Subjects: Charge coupled devices; Charge-coupled image sensors; Degradation; Gamma ray detectors; Laser fusion; Laser noise; Neutrons; Optical imaging; Protection; X-ray lasers
• ISBN: 9780780373136; 0780373138
• DOI: 10.1109/RADECS.2001.1159278

This paper presents the transient radiation sensitivity for a 512/spl times/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 10/sup 4/ to 10/sup 7/ n/cm/sup 2/ 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.