Secondary electron emission from dielectrics
Baker, Mary C.
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This project involved the design and construction of an experiment to measure secondary electron emission coefficients of dielectrics. Data were taken on samples of Lexan, Lucite, treated Lexan, and treated Lucite. Two sets of data were taken for each sample. The samples were chosen based on previous experiments conducted in the surface flashover laboratory that indicated interesting properties of the treated samples. Due to the difficulties involved in measuring secondary electron emission coefficients of dielectrics by traditional means, a new technique was developed to enable the measurement to be conducted while using the surface charge to control the incident electron beam energy. The technique was successful in obtaining data for the lower energy region of the SEE coefficient curve.