RICHARD SALDANHA IDENTIFICATION OF ... - KICP Workshops

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• • Liquid Scintillator Veto Liquid scintillator allows coincident veto of neutrons in the TPC and provides in situ measurement of the neutron background rate 4 m diameter sphere containing 1:1 PC + TMB scintillator Instrumented with 110 8” PMTs 12
• • • 13 Borated Liquid Scintillator High neutron capture cross section on boron allows for compact veto size Capture results in 1.47 MeV α particle - detected with high efficiency Short capture time (2.3 μs) reduces dead time loss Veto Efficiency Radiogenic Neutrons > 99.5%* Cosmogenic Neutrons > 95% Nuclear Instruments and Methods A 644, 18 (2011) *60 μs veto window (2% dead time)
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: • • • External Water tank 80
Page 15 and 16: Inner detector TPC 19x 3” PMTs TP
Page 17 and 18: Underground Argon • 40 Ar is most
Page 19 and 20: Underground Argon Measurement Low b
Page 21 and 22: Sensitivity 21

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