Proton-induced leakage current in CCDs

David Ryan Smith; Andrew D. Holland; Mark S. Robbins; Richard M. Ambrosi; Ian Hutchinson

doi:10.1117/12.461331

11 March 2003 Proton-induced leakage current in CCDs

David Ryan Smith, Andrew D. Holland, Mark S. Robbins, Richard M. Ambrosi, Ian Hutchinson

Proceedings Volume 4851, X-Ray and Gamma-Ray Telescopes and Instruments for Astronomy; (2003) https://doi.org/10.1117/12.461331
Event: Astronomical Telescopes and Instrumentation, 2002, Waikoloa, Hawai'i, United States

Abstract

The effect of different proton fluences on the performance of two E2V Technologies CCD47-20 devices was investigated with particular emphasis given to the analysis of 'random telegraph signal' (RTS) generation, bright pixel generation and induced changes in base dark current level. The results show that bright pixel frequency increases as the mean energy of the proton beam is increased, and that the base dark current level after irradiation scales with the level of ionization damage. For the RTS study, 500 pixels on one device were monitored over a twelve hour period. This data set revealed a number of distinct types of pixel change level fluctuation and a system of classification has been devised. Previously published RTS data is discussed and reviewed in light of the new data.

Citation Download Citation

David Ryan Smith, Andrew D. Holland, Mark S. Robbins, Richard M. Ambrosi, and Ian Hutchinson "Proton-induced leakage current in CCDs", Proc. SPIE 4851, X-Ray and Gamma-Ray Telescopes and Instruments for Astronomy, (11 March 2003); https://doi.org/10.1117/12.461331

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