Title :
Random telegraph signals in proton irradiated CCDs and APS
Author :
Hopkinson, G.R. ; Goiffon, V. ; Mohammadzadeh, A.
Author_Institution :
Surrey Satellite Technol. Ltd., Sevenoaks, UK
Abstract :
Random telegraph dark signal fluctuations have been studied in two types of CCD and two types of CMOS active pixel sensor after proton irradiation at 1.5, 10 and 60 MeV. Time constants and activation energies were very similar, indicating a similar defect type. A large fraction of the defects are multi- rather than 2-level, suggesting a mechanism related to defect clusters being formed from initial single proton events.
Keywords :
CCD image sensors; CMOS image sensors; proton effects; telegraphy; CCD sensor; CMOS sensor; activation energy; defect cluster; electron volt energy 1.5 MeV; electron volt energy 10 MeV; electron volt energy 60 MeV; proton irradiation; random telegraph signals; single proton event; time constant; Aerodynamics; Belts; Data assimilation; Earth; Electrons; Humans; Protons; Space vehicles; Storms; Telegraphy;
Conference_Titel :
Radiation and Its Effects on Components and Systems, 2007. RADECS 2007. 9th European Conference on
Conference_Location :
Deauville
Print_ISBN :
978-1-4244-1704-9
DOI :
10.1109/RADECS.2007.5205515
