A precision time of flight readout system for the TORCH prototype detector

R. Gao, S. Bhasin, T. Blake, N. Brook, F. Cicala, T. Conneely, D. Cussans, R. Forty, C. Frei, E. Gabriel, T. Gershon, T. Gys, T. Hadavizadeh, T. Hancock, N. Harnew, M. Kreps, J. Milnes, D. Piedigrossi, J. Rademacker, M. Van Dijk

Research output: Contribution to journalArticlepeer-review

Abstract

The TORCH detector provides low-momentum particle identification, combining Time of Flight (TOF) and Cherenkov techniques to achieve charged particle pi/K/p separation between 2-20 GeV/c over a flight distance of 10 m. The measurement requires a timing resolution of 70 ps for single Cherenkov photons. For precision photon detection, customised Micro-Channel Plate Photomultiplier Tubes (MCP-PMTs) with high precision TOF measurement electronics have been developed. The electronics measures time-over-threshold from the MCP-PMT and features a 10-Gigabit Ethernet readout. This paper reports the design and performance of a 5120-channel system which currently instruments a pair of MCP-PMTs, but has the capacity to read out ten customised MCP-PMT devices in the future.

Original languageEnglish
Article numberC05015
JournalJournal of Instrumentation
Volume17
Issue number5
Early online date12 May 2022
DOIs
Publication statusPublished - 31 May 2022

Keywords

  • Cherenkov detectors
  • Electronic detector readout concepts (solid-state)
  • Front-end electronics for detector readout
  • Timing detectors

ASJC Scopus subject areas

  • Mathematical Physics
  • Instrumentation

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