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This research aims to measure the light yield of Gd-compatible water-based liquid scintillator for neutrino detection.

December 22, 20250 citationsOpen Access

Measurement of Light Yield Response of Gd-compatible Water-based Liquid Scintillator with the Brookhaven 1-ton testbed

SGS. GwonSamsung Medical Center MAM. AskinsBerkeley College DAD. M. AsnerLawrence Livermore National Laboratory

Key Points

This research aims to measure the light yield of Gd-compatible water-based liquid scintillator for neutrino detection.
Measured light yield at concentrations from 0.35% to 1% by mass.
Utilized cosmic-ray muons in a 1-ton scale detector at BNL.
Established a quantitative basis for evaluating WbLS performance.
Measured light yield of 69.16 ph/MeV at 0.35% concentration.
Increased light yield to 87.32 ph/MeV at 1% concentration.

Abstract

The Water-based Liquid Scintillator (WbLS) enables hybrid detection by combining scintillation and Cherenkov signals, providing superior event reconstruction capabilities compared to conventional neutrino detectors. We measured the light yield of Gd-compatible WbLS at varying concentrations from 0. 35\% to 1\% by mass, using cosmic-ray muons in a 1-ton scale detector at BNL. The light yield is measured as (69. 16 6. 92) ph / MeV at 0. 35\% concentration, which increased to (87. 32 8. 73) ph / MeV at 1\%. These results establish a quantitative basis for optimizing future WbLS-based detectors in neutrino physics.

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