Characterization of the Hamamatsu R11780 12 in. photomultiplier tube

Future large water Cherenkov and scintillator detectors have been proposed for measurements of long baseline neutrino oscillations, proton decay, supernova and solar neutrinos. To ensure cost-effectiveness and optimize scientific reach, one of the critical requirements for such detectors are large-a...

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Published in:Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment Accelerators, spectrometers, detectors and associated equipment, 2013-06, Vol.712 (C), p.162-173
Main Authors: Brack, J., Delgado, B., Dhooghe, J., Felde, J., Gookin, B., Grullon, S., Klein, J.R., Knapik, R., LaTorre, A., Seibert, S., Shapiro, K., Svoboda, R., Ware, L., Van Berg, R.
Format: Article
Language:English
Subjects:
Accelerators
ASTRONOMY AND ASTROPHYSICS
Detectors
INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
Neutrino detectors
Optical detectors
Oscillations
Photocathodes
Photoelectrons
Photomultiplier tube
Photomultiplier tubes
Photon detection
Quantum efficiency
Single phase dark matter
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Summary:Future large water Cherenkov and scintillator detectors have been proposed for measurements of long baseline neutrino oscillations, proton decay, supernova and solar neutrinos. To ensure cost-effectiveness and optimize scientific reach, one of the critical requirements for such detectors are large-area, high performance photomultiplier tubes (PMTs). One candidate for such a device is the Hamamatsu R11780, a 12 in. PMT that is available in both standard and high quantum efficiency versions. Measurements of the single photoelectron response characteristics, relative efficiencies of the standard and high quantum efficiency versions, a preliminary measurement of the absolute quantum efficiency of the standard quantum efficiency version, and a two-dimensional scan of the relative efficiency across the photocathode surface are presented in this paper. All single photoelectron investigations were made using a Cherenkov light source at room temperature at a gain of 1×107. These results show that the R11780 PMT is an excellent candidate for such large optical detectors.
ISSN:0168-9002
1872-9576
DOI:10.1016/j.nima.2013.02.022