9th International Workshop on Ring Imaging Cherenkov Detectors (RICH 2016)

First results from Quality Assurance Testing of MaPMTs for the LHCb RICH Upgrade

5 Sept 2016, 17:10

30m

Bled, Slovenia

Board: 10

Poster Technological aspects and applications of Cherenkov detectors Poster Session B

Speaker

Silvia Gambetta (University of Edinburgh (GB))

Description

In 2019 the LHCb RICH detector will be upgraded to increase the read out rate
from 1MHz to 40MHz. As a consequence, the current Hybrid Photon Detectors
(HPDs) will have to be replaced. Multianode Photomultiplier Tubes (MaPMT)
from Hamamatsu with 64-channels will be used: the 1-inch R13742 and the
2-inch R13743 MaPMTs (custom modifications of the MaPMTs R11625 and
H12699). Quality assurance testing of these MaPMTs using custom developed
readout electronics has started. We present the design and realisation of the test
facilities to ensure consistency in testing and validation. A total of 3100 units
of R13742 and 450 units of the R13743 will be tested requiring high efficiency
and reliability from the test stations. We report on the test programme and
protocols, characterising the units and assuring minimum specifications. First
results of testing and detector characterisation will be presented, based on the
pre-series production, comprising 50 units of R13742 and 28 units of R13743.

External references

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