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EXO-200 Slides for AARM Talk

EXO-200 Slides for AARM Talk. Joshua Albert Indiana University For the EXO Collaboration. EXO-200. First measurement of in 136 Xe! New background for DM. PRL 107 , 212501 (2011). Extensive material screening campaign: successful!

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EXO-200 Slides for AARM Talk

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  1. EXO-200 Slides for AARM Talk Joshua Albert Indiana University For the EXO Collaboration

  2. EXO-200 • First measurement of in 136Xe! New background for DM. PRL 107, 212501 (2011) • Extensive material screening campaign: successful! • Background goals met: 40 cts/2 yrs / 2σ ROI / 140 kg 4.5 μBq kg-1 ~1 per hour T1/2 = 3.8 d NIM A591, 490-509 (2008) PRL 109, 032505 (2012) • Low radon contamination in Xe

  3. EXO-200 • Alpha decay backgrounds rejected • New technique for measuring xenon contamination using a cold trap + mass spectrometry PRL 109, 032505 (2012) Low Background 2D Spectrum NIM A675, 40-46 (2012) alphas cut region • Sensitive Krypton in Xenon measurement: 25±3 ppt NIM A665, 1-6, (2011) • All developments applicable to nEXO Single Cluster

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