Temperature Dependence studies of the ⁶Li-doped liquid scintillator used in PROSPECT

Organic scintillator detectors are used for a broad number of applications in nuclear science, neutrino physics, security and nonproliferation. PROSPECT utilizes a segmented 6Li-doped liquid scintillator detector for efficient detection through the inverse beta decay and excellent background discrimination. The PROSPECT experiment, is designed to make a precise measurement of the antineutrino spectrum from a highly-enriched uranium reactor and to probe eV-scale sterile over meter-long baselines. The novel ⁶Li-doped liquid scintillator has high light yield and powerful pulse-shape discrimination (PSD) capabilities. Recently, we have characterized the temperature dependence of the light output, the viscosity and the PSD of this scintillator and compared it to the commercial EJ309 scintillator. Experimental techniques and results will be presented.