July 31, 2017 to August 4, 2017
Fermi National Accelerator Laboratory
US/Central timezone

A High Efficiency Cosmic Ray Veto Detector for the Mu2e Experiment at Fermilab

Aug 2, 2017, 3:00 PM
IARC Building (Fermi National Accelerator Laboratory)

IARC Building

Fermi National Accelerator Laboratory

Presentation Particle Detectors Particle Detectors


Prof. E. Craig Dukes (University of Virginia)


The Mu2e experiment is designed to search for the charged-lepton flavor-violating process, μ− to a e−, with unprecedented sensitivity. The single 105-MeV electron that results from this process can be mimicked by cosmic-ray muons or their products entering the detector. An active veto detector surrounding the apparatus is used to detect incoming cosmic-ray muons. To reduce the backgrounds to the required level it must have an average efficiency of 99.99% and excellent hermeticity over a large area. The detector consists of four layers of scintillator counters, each with two embedded wavelength-shifting fibers, whose light is detected by silicon photomultipliers. The design and expected performance of the cosmic ray veto detector will be described.

Primary author

Prof. E. Craig Dukes (University of Virginia)

Presentation materials