Large area picosecond photodetector for the Upgrade II of the LHCb RICH

As a component of LHCb Upgrade II, the two Ring-Imaging Cherenkov (RICH) detectors in LHCb will undergo a photodetector upgrade during LHC Long Shutdown 4 (LS4), replacing the multi-anode photomultiplier tubes (MaPMTs) currently installed with a new technology capable of providing time resolved photon detection. A candidate technology for this upgrade is that of microchannel plate photomultipliers. This work presents characterisation results of one such detector, the Large Area Picosecond Photodetector (LAPPD), and an early measurement of the next generation High Rate Picosecond Photodetector (HRPPD).

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Publication Details

Journal
Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment
Published
2026-03-16
DOI
https://doi.org/10.1016/j.nima.2026.171487
Primary Topic
Radiation Detection and Scintillator Technologies
Type
article
Field-Weighted Citation Impact
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article

Large area picosecond photodetector for the Upgrade II of the LHCb RICH

D. Foulds-Holt
Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment
Radiation Detection and Scintillator Technologies
article

Large area picosecond photodetector for the Upgrade II of the LHCb RICH

D. Foulds-Holt
article en

Abstract

As a component of LHCb Upgrade II, the two Ring-Imaging Cherenkov (RICH) detectors in LHCb will undergo a photodetector upgrade during LHC Long Shutdown 4 (LS4), replacing the multi-anode photomultiplier tubes (MaPMTs) currently installed with a new technology capable of providing time resolved photon detection. A candidate technology for this upgrade is that of microchannel plate photomultipliers. This work presents characterisation results of one such detector, the Large Area Picosecond Photodetector (LAPPD), and an early measurement of the next generation High Rate Picosecond Photodetector (HRPPD).

Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated EquipmentVol. 1088
University of Edinburgh (GB)
Openalex Percentile: Top 19%
Radiation Detection and Scintillator Technologies
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