Na-based crystal scintillators for next-generation rare event searches
Abstract
The growing interest in clarifying the controversial situation in the Dark Matter sector has driven the experimental efforts towards new ways to investigate the long-standing DAMA/LIBRA result. Among them, low-temperature calorimeters based on Na-containing scintillating crystals offer the possibility to clarify the nature of the measured signal via particle identification. Here we report the first measurement of Na-containing crystals, based on material different from NaI, i.e. Na2Mo2O7 and Na2W2O7, pointing out their excellent performance in term of energy resolution, light yield, and particle identification.
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