Abstract
Various types of polymeric films can be found in satellites and especially in the main body. Among them, the polyimide type Upilexreg is often selected as it is offering high temperature resistance. However, due to its nature it can get charged and store polarized particles on the surface or in bulk up to a critical level. During the irradiation the built up of charges is followed by the pulsed electro-acoustic (PEA) method. The aim of this work is to get a better understanding on charge storage, conduction processes and extraction means in dielectric films submitted to a controlled electron irradiation, to prevent catastrophic damage during flight.
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