Few electron response and spurious background of linear focused photomultipliers
نویسندگان
چکیده
The compact, linear focused ten-stage photomultipliers Hamamatsu R 1450 and R 1355 have been studied with light pulses generating small numbers (1V,< 25) of photoelectrons . Good amplitude resolution for single photoelectrons as well as for small signals in general was obtained by considerably increasing the supply voltage Ut of the first dynode . The time resolution is dominated by the statistical variation of Ne. The importance of background from microdischarges and Cherenkov radiation is discussed .
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تاریخ انتشار 2002