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talk - International Workshop on Double Beta Decay and Neutrino

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Summary<br />

ELEGANT VI at Oto Cosmo Obs.<br />

7kg of CaF 2 (Eu) Scintillators<br />

T 1/2 > 5.8 × 10 22 years (< 3.5-22 eV)<br />

CANDLES III at Kamioka Lab.<br />

300kg of CaF 2 (pure) scintillators<br />

Pre-measurement for performance test<br />

Expected sensitivity : 0.5 eV for <br />

R&D (for next CANDLES)<br />

Enriched 48 CaF 2 (pure) scintillators<br />

+ Cooling system for CaF 2 (pure)<br />

Sensitivity : ~0.2 eV~0.05eV<br />

Current status<br />

We started<br />

the measurement<br />

in 2011.<br />

UMEHARA Saori, 16 th Nov. 2011, DBD11

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