Anomalous gain drop effects in Hamamatsu 3998-01 photomultiplier

C Plettner,Falko Scherwinski,Guntram Pausch,Ralf Lentering,Yong Kong,Jurgen Stein

Nuclear Science Symposium and Medical Imaging Conference（2011）

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摘要

Currently, in our IdentiFINDER LGH instruments, commercially available 30S30_B380 (LaBr3) detectors, purchased from Saint-Gobain Crystals, are deployed. They are equipped with R3998-01 photomultipliers from Hamamatsu Photonics. With this type of photomultiplier, we recently encountered a new issue in our devices related to a unprecedented gain drop/recovery, occurring at a certain temperature and count rate. The experiments will be outlined and the results presented.

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关键词

photomultipliers,solid scintillation detectors,30s30b380 detectors,hamamatsu 3998-01 photomultiplier,hamamatsu photonics,identifinder lgh instruments,saint-gobain crystals,anomalous gain drop effects,count rate,object recognition

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