Title :
Anomalous gain drop effects in Hamamatsu 3998-01 photomultiplier
Author :
Plettner, Cristina ; Scherwinski, Falko ; Pausch, Guntram ; Lentering, Ralf ; Kong, Yong ; Stein, Jürgen
Author_Institution :
FLIR Radiat. GmbH, Solingen, Germany
Abstract :
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.
Keywords :
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;
Conference_Titel :
Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC), 2011 IEEE
Conference_Location :
Valencia
Print_ISBN :
978-1-4673-0118-3
DOI :
10.1109/NSSMIC.2011.6154650
