Determination of Accumulated Electrons at PET Surface Using Mirror Effect Phenomena in SEM

An experimental-theoretical investigation have been presented to exploring phenomena of mirror effect. The Polyethylene Terephthalate (PET) material is chosen to be a case study throughout this work. Where the scanning electron microscope (SEM) is used for executing the experiments. Attention has been focused on determination of the number of electrons that accumulated at PET surface, since it is regarded to be the most important factor for producing mirror effect images. Thus two different procedures are produced to achieve such a task namely Magnification Factor Method and Disappearing Method. Results obtained from these two approaches have clearly shown that mirror effects can accurately be used as an excellent tool to determine dielectric constant of insulator