N. Harnew, R. Gao, T. Hadavizadeh, T.H. Hancock, J.C. Smallwood, N.H. Brook, S. Bhasin, D. Cussans, J. Rademacker, R. Forty, C. Frei, T. Gys, D. Piedigrossi, M.W.U. van Dijk, E.P.M. Gabriel, T. Conneely, J. Milnes, T. Blake, M.F. Cicala, T. Gershon, T. Jones, M. Kreps
{"title":"The TORCH time-of-flight detector","authors":"N. Harnew, R. Gao, T. Hadavizadeh, T.H. Hancock, J.C. Smallwood, N.H. Brook, S. Bhasin, D. Cussans, J. Rademacker, R. Forty, C. Frei, T. Gys, D. Piedigrossi, M.W.U. van Dijk, E.P.M. Gabriel, T. Conneely, J. Milnes, T. Blake, M.F. Cicala, T. Gershon, T. Jones, M. Kreps","doi":"10.1016/j.nima.2022.167991","DOIUrl":null,"url":null,"abstract":"TORCH is a large-area time-of-flight (ToF) detector, proposed for the Upgrade-II of the LHCb experiment. It will provide charged hadron identification over a 2–20 GeV/c momentum range, given a 9.5 m flight distance from the LHC interaction point. To achieve this level of performance, a 15 ps timing resolution per track is required. A TORCH prototype module having a 1250×660×10 mm3 fused-silica radiator plate and equipped with two MCP-PMTs has been tested in a 8 GeV/c CERN test-beam. Single-photon time resolutions of between 70–100 ps have been achieved, dependent on the beam position in the radiator. The measured photon yields agree with expectations.","PeriodicalId":19383,"journal":{"name":"Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment","volume":"41 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1016/j.nima.2022.167991","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
TORCH is a large-area time-of-flight (ToF) detector, proposed for the Upgrade-II of the LHCb experiment. It will provide charged hadron identification over a 2–20 GeV/c momentum range, given a 9.5 m flight distance from the LHC interaction point. To achieve this level of performance, a 15 ps timing resolution per track is required. A TORCH prototype module having a 1250×660×10 mm3 fused-silica radiator plate and equipped with two MCP-PMTs has been tested in a 8 GeV/c CERN test-beam. Single-photon time resolutions of between 70–100 ps have been achieved, dependent on the beam position in the radiator. The measured photon yields agree with expectations.
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