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talk - International Workshop on Double Beta Decay and Neutrino

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Counts<br />

10 2<br />

Half-life:175±10μsec(164μsec)<br />

energy resoluti<strong>on</strong> :=4.3%<br />

radioactivity:61±9(syst.)mBq/kg<br />

(previous measurement:65mBq/kg)<br />

Delayed analysis<br />

214<br />

Bi→ 214 Po→ 210 Pb decay(β→α decay in U-chain)<br />

∆t distributi<strong>on</strong><br />

0 200 400 600 800 1000<br />

Time(microsec)<br />

Expected performances<br />

with current CANDLES III were obtained.<br />

Counts<br />

Counts<br />

Energy Spectra(∆t

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