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Improvement of the MCP-PMT Performance Under a High Count Rate

Authors :
Y. Kato
Kodai Matsuoka
Kazuho Kobayashi
Raita Omori
Toru Iijima
G. Muroyama
K. Inami
K. Suzuki
Yosuke Maeda
S. Hirose
Source :
Springer Proceedings in Physics ISBN: 9789811313158
Publication Year :
2018
Publisher :
Springer Singapore, 2018.

Abstract

A square shape micro-channel-plate photomultiplier tube (MCP-PMT) was developed for the Belle II TOP counter, where the count rate of the MCP-PMT is as high as several MHz/PMT due to the accelerator beam backgrounds. A major problem of the MCP-PMT in such an environment is depression of the quantum efficiency along with the integrated amount of output charge. We succeeded in diminishing the depression significantly by introducing an atomic layer deposition technique and some other processes in the production of the MCP-PMT.

Details

Database :
OpenAIRE
Journal :
Springer Proceedings in Physics ISBN: 9789811313158
Accession number :
edsair.doi...........acde4169d886fca7b6fcad2aede311cd