Development, characterisation, and deployment of the SNO+ liquid scintillator

Understand

A liquid scintillator consisting of linear alkylbenzene as the solvent and 2,5-diphenyloxazole as the fluor was developed for the SNO+ experiment.

• This mixture was chosen as it is compatible with acrylic and has a competitive light yield to pre-existing liquid scintillators while conferring other advantages including longer attenuation lengths, superior safety characteristics, chemical simplicity, ease of handling, and logistical availability.
• Its properties have been extensively characterized and are presented here.
• This liquid scintillator is now used in several neutrino physics experiments in addition to SNO+.