First measurement of the surface tension of a liquid scintillator based on Linear Alkylbenzene (HYBLENE 113)

TL;DR

This paper reports the first measurement of the surface tension of a liquid scintillator based on Linear Alkylbenzene (HYBLENE 113), providing essential data for material studies in particle physics experiments.

Contribution

It presents the first experimental determination of the surface tension of HYBLENE 113, both pure and mixed with PPO, using the iron wire method.

Findings

Surface tension of HYBLENE 113 plus PPO: 30.0 ± 0.6 mN/m at 22°C

Surface tension of pure HYBLENE 113: 29.2 ± 0.6 mN/m at 21°C

Provides data relevant for liquid-scintillator based background tagging in SHiP

Abstract

We measured the surface tension of linear alkylbenzene (LAB) HYBLENE 113 mixed with Diphenyloxazole (PPO) as well as of pure LAB HYBLENE 113 as part of material studies for the liquid-scintillator based surround background tagger (SBT) in the proposed SHiP experiment. The measurement was performed using the iron wire method and the surface tension for linear alkyl benzene HYBLENE 113 plus PPO was found to be $(30.0\pm0.6)$ mN/m $22.0\pm 0.5$ {\deg}C and for pure HYBLENE 113, $(29.2\pm 0.6)$ mN/m at $21.0\pm 0.5$ {\deg}C.