Design and performance of SiPM-based readout of PbF2 crystals for high-rate, precision timing applications

Abstract

We have developed a custom amplifier board coupled to a large-format 16-channel Hamamatsu silicon photomultiplier device for use as the light sensor for the electromagnetic calorimeters in the Muon g-2 experiment at Fermilab. The calorimeter absorber is an array of lead-fluoride crystals, which produces short-duration Cherenkov light. The detector sits in the high magnetic field of the muon storage ring. The SiPMs selected, and their accompanying custom electronics, must preserve the short pulse shape, have high quantum efficiency, be non-magnetic, exhibit gain stability under varying rate conditions, and cover a fairly large fraction of the crystal exit surface area. We describe an optimized design that employs the new-generation of thru-silicon via devices. The performance is documented in a series of bench and beam tests.

arXiv commentIn version 2, simplified schematics of the SiPM board was fixed, and high rate test redone

References in corpus (3)

• Muon (g-2) Technical Design Report
• Studies of an array of PbF2 Cherenkov crystals with large-area SiPM readout
• Electron beam test of key elements of the laser-based calibration system for the muon $g$ $-$ $2$ experiment

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• Performance of the Muon $g-2$ calorimeter and readout systems measured with test beam data
• Timing and characterization of shaped pulses with MHz ADCs in a detector system: a comparative study and deep learning approach
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• The Straw Tracking Detector for the Fermilab Muon $g-2$ Experiment
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• Muon g-2 reconstruction and analysis framework for the muon anomalous precession frequency
• Alignment of the straw tracking detectors for the Fermilab Muon $g-2$ experiment and systematic studies for a muon electric dipole moment measurement