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Abstract:
This article is about the study of two kinds of EMI 8" PMTs, D642KB and 9350KA. Several characteristics including relative quantum efficiency(QE), linearity, gain, dark current, afterpulse ratio and incident angle effect have been tested. Specially, dedicated systems have been set up for the measurements of relative quantum efficiency and incident angle effect. The performances of the two kinds of EMI PMTs are described here.
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