RICHARD SALDANHA IDENTIFICATION OF ... - KICP Workshops

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Underground Argon Underground Argon from CO2 plant in Cortez Colorado VPSA system (Cortez) 0.5 kg/day production 110 kg produced so far CO2 [%] N2 [%] He CO2 Plant Output 96 2.4 0.4 0.06 VPSA output ~ 0 40 55 5 Cryogenic Distillation output arXiv:1204.6024 [astro-ph.IM] [%] Ar [%] ~ 0 < 0.05 ~ 0 > 99.95 Cryogenic Distillation system 0.9 kg/day production 70 - 81% efficiency ~ 19 kg produced so far arXiv:1204.6061 [astro-ph.IM] 18
Underground Argon Measurement Low background LAr detector was operated underground at KURF with both atmospheric and underground argon arXiv:1204.60111 [physics.ins-det] Underground Argon Atmospheric Argon 39 Ar Depletion Factor Total Rate [mBq/100 keV] 1.87 +/- 0.06 108.8 +/- 0.4 Estimated Background argon data at KURF. Rate [mBq/100 keV] 1.5 +/- 0.2 * +** ,** -** .** /*** !"#$%&'(#) Background Subtracted Rate [mBq/100 keV] 1.71 +/- 0.05 % < 0.65 % (95 CL) 012#'345'(#)6 7+ /* /* 7, /* 78 /* /* 79 7- !"#$%&:;
Page 1 and 2: PRINCETON UNIVERSITY 26th July 2012
Page 3 and 4: DarkSide Program Multi-stage progra
Page 5 and 6: DarkSide 10 First designed, built a
Page 7 and 8: S1 and S2 signals With drift fields
Page 9 and 10: • • • • • DS-10 Performan
Page 11 and 12: • • • External Water tank 80
Page 13 and 14: • • • 13 Borated Liquid Scint
Page 15 and 16: Inner detector TPC 19x 3” PMTs TP
Page 17: Underground Argon • 40 Ar is most
Page 21 and 22: Sensitivity 21

RICHARD SALDANHA IDENTIFICATION OF ... - KICP Workshops

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