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  4. The TORCH PMT: a close packing, multi-anode, long life MCP-PMT for Cherenkov applications
 
research article

The TORCH PMT: a close packing, multi-anode, long life MCP-PMT for Cherenkov applications

Conneely, T. M.
•
Van Dijk, M. W. U.
•
D'Ambrosio, C.
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2015
Journal of Instrumentation

Photek (U.K.) and the TORCH collaboration are undertaking a three year development program to produce a novel square MCP-PMT for single photon detection. The TORCH detector aims to provide particle identification in the 2-10 GeV/c momentum range, using a Time-of-Flight method based on Cherenkov light. It is a stand-alone R&D project with possible application in LHCb, and has been proposed for the LHCb Upgrade. The Microchannel Plate (MCP) detector will provide a single photon timing accuracy of 40 ps, and its development will include the following properties: (i) Long lifetime up to at least 5 C/cm(2); (ii) Multi-anode output with a spatial resolution of 6mm and 0.4mm respectively in the horizontal and vertical directions, incorporating a novel charge-sharing technique; (iii) Close packing on two opposing sides with an active area fill factor of 88% in the horizontal direction. Results from simulations modelling the MCP detector performance factoring in the pulse height variation from the detector, NINO threshold levels and potential charge sharing techniques that enhance the position resolution beyond the physical pitch of the pixel layout will be discussed. Also, a novel method of coupling the MCP-PMT output pads using Anisotropic Conductive Film (ACF) will be described. This minimises parasitic input capacitance by allowing very close proximity between the frontend electronics and the MCP detector.

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Type
research article
DOI
10.1088/1748-0221/10/05/C05003
Web of Science ID

WOS:000357993300003

Author(s)
Conneely, T. M.
Van Dijk, M. W. U.
D'Ambrosio, C.
Brook, N.
Garcia, L. Castillo
Cowie, E. N.
Cussans, D.
Forty, R.
Frei, C.
Gao, R.
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Date Issued

2015

Publisher

Iop Publishing Ltd

Published in
Journal of Instrumentation
Volume

10

Article Number

C05003

Subjects

Photon detectors for UV

•

visible and IR photons (vacuum)

•

Cherenkov detectors

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Timing detectors

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
LPHE  
Available on Infoscience
September 28, 2015
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/119413
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