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photomultiplier
photoelectric detector comprising a photocathode, an anode and an electron multiplication device that uses the secondary emission of dynodes or channels between photocathode and anode
Note 1 to entry: This entry was numbered 845-05-36 in IEC 60050-845:1987.
Note 2 to entry: This entry was numbered 17-916 in CIE S 017:2011.