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Time Response of Water-based Liquid Scintillator from X-ray Excitation

Abstract

Water-based liquid scintillators (WbLS) present an attractive target medium for large-scale detectors with the ability to enhance the separation of Cherenkov and scintillation signals from a single target. This work characterizes the scintillation properties of WbLS samples based on LAB/PPO liquid scintillator (LS). X-ray luminescence spectra, decay profiles, and relative light yields are measured for WbLS of varying LS concentration as well as for pure LS with a range of PPO concentrations up to 90 g/L. The scintillation properties of the WbLS are related to the precursor LAB/PPO: starting from 90 g/L PPO in LAB before synthesis, the resulting WbLS have spectroscopic properties that instead match 10 g/L PPO in LAB. This could indicate that the concentration of active PPO in the WbLS samples depends on their processing.

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Article information


Submitted
26 Feb 2020
Accepted
20 Mar 2020
First published
25 Mar 2020

This article is Open Access

Mater. Adv., 2020, Accepted Manuscript
Article type
Paper

Time Response of Water-based Liquid Scintillator from X-ray Excitation

D. R. Onken, F. Moretti, J. Caravaca, M. Yeh, G. Orebi Gann and E. Bourret–Courchesne, Mater. Adv., 2020, Accepted Manuscript , DOI: 10.1039/D0MA00055H

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