Particle background in CCD detectors

摘要

Abstract: Monte Carlo simulations of charged particle events in CCDs are described. Efficient background rejection can be obtained by a combination of energy veto and event morphology censoring. The data are compared with in-flight measurements taken during a sounding rocket flight of a prototype detector. Implications for future missions are discussed. It is shown that the external charged particle background may be small enough that other effects such as locally induced radioactivity and soft electron contamination become important factors.!15