May 24 – 28, 2021
America/Vancouver timezone

Proton light yield of water-based liquid scintillator

May 26, 2021, 10:42 AM
Parallel session talk Sensors: Light-based detectors Sensors: Light-based detectors


Edward Callaghan (University of California, Berkeley / Lawrence Berkeley National Laboratory)


Future neutrino detectors, whether answering questions of fundamental physics or exercising nuclear monitoring techniques, will require advanced technologies for optimal performance. One such candidate technology is water-based liquid scintillator (WbLS), a material for which Cherenkov and scintillation light may be discriminated and examined independently. We present a measurement of the relative proton light yields of WbLS and an LAB-based liquid scintillator, using a broad-spectrum neutron source at the 88-Inch Cyclotron at Lawrence Berkeley National Laboratory. A double-time-of-flight technique was employed, which allows for kinematic reconstruction of the proton recoil energy over a range of 2 to 20 MeV. We also present a characterization of the nonlinearity in photomultiplier tube response over the full dynamic range of the electronics system.

TIPP2020 abstract resubmission? No, this is an entirely new submission.

Primary author

Edward Callaghan (University of California, Berkeley / Lawrence Berkeley National Laboratory)


Dr Bethany Goldblum (Lawrence Berkeley National Laboratory) Dr Joshua Brown (University of California, Berkeley) Dr Thibault Laplace (University of California, Berkeley) Juan Manfredi (University of California, Berkeley) Gabriel Orebi Gann (UC Berkeley / LBNL)

Presentation materials