Temperature Dependence studies of the <sup>6</sup>Li-doped liquid scintillator used in PROSPECT

ORAL

Abstract

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.

*This material is based upon work supported by the U.S. Department of Energy Office of Science and the Heising-Simons Foundation. Additional support is provided by Illinois Institute of Technology, LLNL, NIST, ORNL, Temple University, and Yale University. We gratefully acknowledge the support and hospitality of the High Flux Isotope Reactor, managed by UTBattelle for the U.S. Department of Energy.

Presenters

  • Brennan T Hackett

    • University of Tennessee, Oak Ridge National Laboratory

Authors

  • Brennan T Hackett

    • University of Tennessee, Oak Ridge National Laboratory
  • Michael Febbraro

    • Oak Ridge National Laboratory
  • Alfredo Galindo

    • Oak Ridge National Lab
    • Oak Ridge National Laboratory, The University of Tennessee, Knoxville
    • Oak Ridge National Laboratory
  • Corey Gilbert

    • Oak Ridge National Laboratory, University of Tennessee