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HPGe Detector, Part I: Repair » HPGe_can_inside

This detector comes with a plastic sheet spacer that wraps around the inside of the can. The crystal container is designed to float at some +3 kV relative to this can, the clearance is very tight, and if metal accidentally touches…goodbye FET! My plastic sheet was damaged by an electric discharge (see next photo) and had to be replaced with a piece of book-binding transparency sheet.


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