Journal
12TH INTERNATIONAL CONFERENCE ON TOPICS IN ASTROPARTICLE AND UNDERGROUND PHYSICS (TAUP 2011), PTS 1-6
Volume 375, Issue -, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/1742-6596/375/1/042023
Keywords
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Funding
- ISTC [3293, 3893]
- Federal Science and Innovations Agency of Russian Federation [2008-03-1.3-25-09-015]
- KRISS
- NRF of Korea
- National Academy of Sciences of Ukraine
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AMoRE (Advanced Mo based Rare process Experiment) collaboration is going to use calcium molybdate crystals as cryogenic scintillation detector in a search for neutrinoless DBD of Mo-100 isotope. Simultaneous detection of phonons and light will be used to reject internal background. A FWHM resolution of 0.2% in the phonon channel has been achieved with a 0.5 cm(3) crystal. Several (CaMoO4)-Ca-40-Mo-100 crystals (approximate to 0.5 kg) have been developed from enriched Mo-100 and depleted Ca-40 materials. The light yield of these crystals has been shown to be comparable with reference CaMoO4 scintillators for temperatures ranging down to 8 K. The content of dangerous radioisotopes in the crystals is under measurement. The projected sensitivity of the experiment for a 250 kg x years exposure is lim T-1/2 similar to 3 x 10(26) years, which corresponds to the effective Majorana neutrino mass < mv > similar to 0.02 - 0.06 eV.
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