Development of liquid scintillators loaded with alkaline earth molybdate nanoparticles for detection of neutrinoless double-beta decay

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Abstract

To determine whether neutrinoless double-beta decay occurs is an enormous challenge in particle physics. For this purpose, developing a highly transparent liquid scintillator that contains a candidate isotope at high concentration is required. In this work, 100 Mo was selected as the isotope and surface-modified nanoparticles were applied. AMoO 4 alkaline earth molybdates (A = Ca, Sr, and Ba) were synthesized with a subcritical hydrothermal method so that they were well dispersed in organic solvents. The crystalline phase of the nanoparticles was confirmed with X-ray diffraction measurements. The particle size of SrMoO 4 nanoparticles was found to be the smallest from a transmission electron microscope examination. The SrMoO 4 nanoparticles were incorporated in liquid scintillators, resulting in high transparency and efficient scintillation. In conclusion, liquid scintillators loaded with organic modified SrMoO 4 nanoparticles were successfully developed.

Original languageEnglish
Pages (from-to)28-34
Number of pages7
JournalJournal of the Ceramic Society of Japan
DOIs
Publication statusPublished - 2019 Jan

Keywords

  • Alkaline earth molybdate
  • Hydrotherrmal synthesis
  • Liquid scintillator
  • Neutrinoless double-beta decay

ASJC Scopus subject areas

  • Ceramics and Composites
  • Chemistry(all)
  • Condensed Matter Physics
  • Materials Chemistry

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