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Beam tests of a large-scale TORCH time-of-flight demonstrator
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Hancock, T. H., Bhasin, S., Blake, T., Brooke, N., Conneely, T., Cussons, D., Frei, C., Forty, R., Gabriel, E. P. M., Gao, R., Gershon, T. J., Gys, T., Hadavizadeh, T., Harnew, N., Kreps, M., Milnes, J., Piedigrossi, D., Rademacker, J. and van Dijk, M. (2020) Beam tests of a large-scale TORCH time-of-flight demonstrator. Nuclear Instruments and Methods in Physics Research, Section A : Accelerators, Spectrometers, Detectors and Associated Equipment, 958 . 162060. doi:10.1016/j.nima.2019.04.014 ISSN 0168-9002.
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Official URL: https://doi.org/10.1016/j.nima.2019.04.014
Abstract
The TORCH time-of-flight detector is designed to provide particle identification in the momentum range over large areas. The detector exploits prompt Cherenkov light produced by charged particles traversing a thick quartz plate. The photons propagate via total internal reflection and are focused onto a detector plane comprising position-sensitive Micro-Channel Plate Photo-Multiplier Tubes (MCP-PMT) detectors. The goal is to achieve a single-photon timing resolution of , giving a timing precision of per charged particle by combining the information from around 30 detected photons. The MCP-PMT detectors have been developed with a commercial partner (Photek Ltd, UK), leading to the delivery of a square tube of active area with a granularity of equivalent. A large-scale demonstrator of TORCH, having a quartz plate of dimensions and read out by a pair of MCP-PMTs with custom readout electronics, has been verified in a test beam campaign at the CERN PS. Preliminary results indicate that the required performance is close to being achieved. The anticipated performance of a full-scale TORCH detector at the LHCb experiment is presented.
| Item Type: | Journal Article | ||||||||
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| Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | ||||||||
| Journal or Publication Title: | Nuclear Instruments and Methods in Physics Research, Section A : Accelerators, Spectrometers, Detectors and Associated Equipment | ||||||||
| Publisher: | Elsevier BV * North-Holland | ||||||||
| ISSN: | 0168-9002 | ||||||||
| Official Date: | 1 April 2020 | ||||||||
| Dates: |
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| Volume: | 958 | ||||||||
| Article Number: | 162060 | ||||||||
| DOI: | 10.1016/j.nima.2019.04.014 | ||||||||
| Status: | Peer Reviewed | ||||||||
| Publication Status: | Published | ||||||||
| Access rights to Published version: | Open Access (Creative Commons) | ||||||||
| Date of first compliant deposit: | 5 November 2021 | ||||||||
| Date of first compliant Open Access: | 5 November 2021 | ||||||||
| Is Part Of: | 1 |
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