The TORCH time-of-flight detector for Upgrade II of the LHCb experiment

被引：0

作者：

Blake, T. ^{[9
]}

Cicala, F. ^{[9
]}

Conneely, T. ^{[8
]}

Cussans, D. ^{[1
]}

Davidson, A. ^{[9
]}

Frei, C. ^{[2
]}

Forty, R. ^{[2
]}

Gao, R. ^{[7
]}

Gershon, T. ^{[9
]}

Gys, T. ^{[2
]}

Hadavizadeh, T. ^{[6
]}

Hancock, T. ^{[7
]}

Harnew, N. ^{[7
]}

Jones, T. ^{[9
]}

Korpar, S. ^{[4
]}

Kreps, M. ^{[9
]}

Lappington, J. ^{[5
]}

Lehuraux, M.

Lowe, A. ^{[7
]}

Milnes, J. ^{[8
]}

Pestonik, R. ^{[4
]}

Piedigrossi, D. ^{[2
]}

Polyakov, I. ^{[2
]}

Rademacker, J. ^{[1
]}

Trilov, S. ^{[1
]}

Tat, M. ^{[7
]}

Walton, E. ^{[6
]}

Wilkinson, G. ^{[7
]}

York, A. ^{[7
]}

Zhu, L. ^{[3
]}

机构：

[1] Univ Bristol, HH Wills Phys Lab, Bristol BS8 1TL, England

[2] CERN, CH-1211 Meyrin, Switzerland

[3] Univ Chinese Acad Sci, Sch Phys Sci, Beijing 100049, Peoples R China

[4] Jozef Stefan Inst, Expt Particle Phys Dept, Ljubljana SI-1000, Slovenia

[5] Univ Leicester, Sch Phys & Astron, Leicester LE1 7RH, England

[6] Monash Univ, Sch Phys & Astron, Clayton, Vic 3800, Australia

[7] Univ Oxford, Denys Wilkinson Bldg, Oxford OX1 3RH, England

[8] Photek Ltd, 26 Castleham Rd, St Leonards On Sea TN38 9NS, England

[9] Univ Warwick, Dept Phys, Coventry CV4 7AL, England

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2024年 / 1069卷

关键词：

Particle identification; Time-of-flight;

D O I：

10.1016/j.nima.2024.169797

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

The TORCH (Time Of internally Reflected Cherenkov light) detector is proposed for the high-luminosity Upgrade II of the LHCb experiment. The aim of TORCH is to measure time-of-flight with a 15 ps resolution per charged-particle, providing particle identification over the momentum range 2-15 GeV/c. TORCH is to be located approximately 9.5 m downstream of the LHCb interaction point, and comprises 18 modules of highly-polished 1 cm-thick quartz plates, each of 250x66cm(2). Cherenkov photons, radiated in the quartz, are focused onto an array of fast-timing micro-channel-plate detectors (MCP-PMTs) that each have a pixelation of 8 x 64 within an active area of 5.3x5.3cm(2). Test-beam studies have previously shown that a timing resolution better than 100 ps per single photon can be achieved on a half-height module. Recent advances in the development of a 16 x 96 pixelated MCP-PMT are described. A full-height module is being developed with a light-weight carbon-fibre support structure. A novel exo-skeleton jigging system is used to bond the optical elements and support each module during installation.

引用

页数：4

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