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Secondary electron yield (SEY) is a function of: Material Density Electron Distribution in SEY Layer Band Gap Primary Electron Energy Some of the best materials for high SEY are electrical insulators/semiconductors: Film thickness Positive charging hinders secondary electron emission.
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Secondary electron yield (SEY) is a function of: • Material Density • Electron Distribution in SEY Layer • Band Gap • Primary Electron Energy • Some of the best materials for high SEY are electrical insulators/semiconductors: • Film thickness • Positive charging hinders secondary electron emission