Test-beam performance of a TORCH prototype module

M. Kreps; S. Bhasin; T. Blake; N. H. Brook; M. F. Cicala; T. Conneely; D. Cussans; M. W.U. van Dijk; R. Forty; C. Frei; E. P.M. Gabriel; R. Gao; T. Gershon; T. Gys; T. Hadavizadeh; T. H. Hancock; N. Harnew; T. Jones; J. Milnes; D. Piedigrossi; J. Rademacker; J. Smallwood

doi:10.22323/1.390.0854

Test-beam performance of a TORCH prototype module

M. Kreps, S. Bhasin, T. Blake, N. H. Brook, M. F. Cicala, T. Conneely, D. Cussans, M. W.U. van Dijk, R. Forty, C. Frei, E. P.M. Gabriel, R. Gao, T. Gershon, T. Gys, T. Hadavizadeh, T. H. Hancock, N. Harnew, T. Jones, J. Milnes, D. PiedigrossiJ. Rademacker, J. Smallwood

Faculty of Science

Research output: Contribution to journal › Conference article › peer-review

Abstract

The TORCH time-of-flight detector is designed to provide a 15 ps timing resolution for charged particles, resulting in K/p (p/K) particle identification up to momentum of about 10 (15) GeV/c over a 10 m flight distance. Cherenkov photons, produced in a quartz plate of 10 mm thickness, are focused onto an array of micro-channel plate photomultipliers (MCP-PMTs) which measure the photon arrival times and spatial positions. A TORCH demonstrator module instrumented with a customised MCP-PMTs has been tested at the CERN PS. The useful implementation for the particle identification in the LHCb experiment requires single-photon time resolution of 70 ps. The timing performance and photon yields have been measured as a function of beam position in the radiator, giving measurements which are approaching the required resolution. A possible TORCH design of the particle identification system in the LHCb experiment has been simulated and its potential for high luminosity running has been evaluated.

Original language	English
Pages (from-to)	854-854
Number of pages	1
Journal	Proceedings of Science
Volume	ICHEP 2020
DOIs	https://doi.org/10.22323/1.390.0854
Publication status	Published - 15 Apr 2021
Event	40th International Conference on High Energy Physics, ICHEP 2020 - Virtual, Prague, Czech Republic Duration: 28 Jul 2020 → 6 Aug 2020

Bibliographical note

Publisher Copyright:
© Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND 4.0).

Copyright:
Copyright 2021 Elsevier B.V., All rights reserved.

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Kreps, M., Bhasin, S., Blake, T., Brook, N. H., Cicala, M. F., Conneely, T., Cussans, D., van Dijk, M. W. U., Forty, R., Frei, C., Gabriel, E. P. M., Gao, R., Gershon, T., Gys, T., Hadavizadeh, T., Hancock, T. H., Harnew, N., Jones, T., Milnes, J., ... Smallwood, J. (2021). Test-beam performance of a TORCH prototype module. Proceedings of Science, ICHEP 2020, 854-854. https://doi.org/10.22323/1.390.0854

Kreps, M, Bhasin, S, Blake, T, Brook, NH, Cicala, MF, Conneely, T, Cussans, D, van Dijk, MWU, Forty, R, Frei, C, Gabriel, EPM, Gao, R, Gershon, T, Gys, T, Hadavizadeh, T, Hancock, TH, Harnew, N, Jones, T, Milnes, J, Piedigrossi, D, Rademacker, J & Smallwood, J 2021, 'Test-beam performance of a TORCH prototype module', Proceedings of Science, vol. ICHEP 2020, pp. 854-854. https://doi.org/10.22323/1.390.0854

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abstract = "The TORCH time-of-flight detector is designed to provide a 15 ps timing resolution for charged particles, resulting in K/p (p/K) particle identification up to momentum of about 10 (15) GeV/c over a 10 m flight distance. Cherenkov photons, produced in a quartz plate of 10 mm thickness, are focused onto an array of micro-channel plate photomultipliers (MCP-PMTs) which measure the photon arrival times and spatial positions. A TORCH demonstrator module instrumented with a customised MCP-PMTs has been tested at the CERN PS. The useful implementation for the particle identification in the LHCb experiment requires single-photon time resolution of 70 ps. The timing performance and photon yields have been measured as a function of beam position in the radiator, giving measurements which are approaching the required resolution. A possible TORCH design of the particle identification system in the LHCb experiment has been simulated and its potential for high luminosity running has been evaluated.",

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AU - Conneely, T.

AU - Cussans, D.

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AU - Frei, C.

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AU - Hancock, T. H.

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AU - Jones, T.

AU - Milnes, J.

AU - Piedigrossi, D.

AU - Rademacker, J.

AU - Smallwood, J.

N1 - Publisher Copyright: © Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND 4.0). Copyright: Copyright 2021 Elsevier B.V., All rights reserved.

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N2 - The TORCH time-of-flight detector is designed to provide a 15 ps timing resolution for charged particles, resulting in K/p (p/K) particle identification up to momentum of about 10 (15) GeV/c over a 10 m flight distance. Cherenkov photons, produced in a quartz plate of 10 mm thickness, are focused onto an array of micro-channel plate photomultipliers (MCP-PMTs) which measure the photon arrival times and spatial positions. A TORCH demonstrator module instrumented with a customised MCP-PMTs has been tested at the CERN PS. The useful implementation for the particle identification in the LHCb experiment requires single-photon time resolution of 70 ps. The timing performance and photon yields have been measured as a function of beam position in the radiator, giving measurements which are approaching the required resolution. A possible TORCH design of the particle identification system in the LHCb experiment has been simulated and its potential for high luminosity running has been evaluated.

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Test-beam performance of a TORCH prototype module

Abstract

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