secondary electron multiplier

Definitions

Electronics

• An electron tube in which secondary electron emissions produce current amplification. In it, a cathode releases primary electrons, which are then reflected by multiple electron mirrors, or dynodes, each producing more and more electrons. Depending on the number of dynodes, the amplification factor may be in the millions. Its abbreviation is SEM Also called multiplier (2), or electron multiplier.
• acronymSEM

Cars & Driving

• noun a preassembled fastener, consisting of any type of screw or bolt, furnished with a toothed washer

Food

• green beans

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Contexts for “secondary electron multiplier”

4 definitions in context
• Electronics
• Cars & Driving
• Food