Characterisation of the Hamamatsu R12199-01 HA MOD photomultiplier tube for low temperature applications

We present a detailed characterisation of the new Hamamatsu R12199-01 HA MOD 3-inch photomultiplier tube (PMT) which is under consideration for the use in segmented optical modules of deep-ice neutrino detectors at the South Pole. Because of the significantly lower operation-temperature range compar...

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Bibliographic Details
Published in:Journal of instrumentation 2019-03, Vol.14 (3), p.P03015-P03015
Main Authors: Elorrieta, M.A. Unland, Classen, L., Reubelt, J., Schmiemann, S., Schneider, J., Kappes, A.
Format: Article
Language:English
Subjects:
Background noise
Low temperature
Neutrinos
Photocathodes
Photomultiplier tubes
Reflectors
South Pole
Temperature dependence
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Summary:We present a detailed characterisation of the new Hamamatsu R12199-01 HA MOD 3-inch photomultiplier tube (PMT) which is under consideration for the use in segmented optical modules of deep-ice neutrino detectors at the South Pole. Because of the significantly lower operation-temperature range compared to standard applications, a focus of our studies lies on the investigation of the temperature dependence of background characteristics (dark count rate, probability of correlated pulses), timing properties, gain and peak-to-valley ratio of this PMT type. In addition, the performance of the “HA coating” intended for background reduction was tested, as well as the influence of conductive objects near the photocathode like reflectors on the PMT noise rate. A low background rate is of particular importance as the deep ice at the South Pole features negligible optical background. We find that the new PMT type is well suited for the intended applications.
ISSN:1748-0221
1748-0221
DOI:10.1088/1748-0221/14/03/P03015