Liquefied Noble Gas Detectors for Low Energy Particle Physics Main source of the talk



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Liquefied Noble Gas Detectors for Low Energy Particle Physics


Main source of the talk



Outline



Title



DM versus CNS



Expected integral rates



WIMP Search Technology Zoo



WIMP search - Zoo



Title



Title



LNG detectors: a bit of history



DM double phase detectors: important steps



First LNG dark matter detectors



Operation principle of a double-phase electroluminescence detector



Title



Scintillation – a closer look



Scintillation – a closer look



Scintillation – a closer look



Scintillation – a closer look



Scintillation – a closer look



PSD in LXe



PSD in LXe (XMASS)



PSD in LAr



Light yield depends on particle and energy



Light yield – different behaviour at low energies



Scintillation yield for electrons and -rays



Field dependence of light yield



Title



Scintillation efficiency for nuclear recoils in LXe



Title



Scintillation efficiency in LAr and LNe



Ws value for LAr and LXe



Title



Title



Energy partition



Ionization yield from nuclear recoils



Charge/light vs electric field



Field dependence of free charge yield



Nelectrons due to nuclear recoils



More electrons escape at low E



Nuclear recoil tracks in LXe



Nuclear recoil “track” details



Nuclear recoil “track” details



Simulated electron tracks



30 keV electrons – more examples



Title



Simulated 0.5 MeV electron tracks



Simulated 0.5 MeV electron tracks



Ionization and drift parameters



Title



Electron emission to gas



Secondary scintillation in gas



Single electron spectrum



Title



Single electron noise - origins



Single electron noise (cont.)



Title



Subexcitation electrons in LXe



Title



Title



Title



Title



Sub-keV electrons in LAr



Sub-keV electrons in LAr



Summary (before going to experiments)



Summary (before going to experiments)



Title



LXe DM ZEPLIN-III



LXe DM XENON100



LXe DM LUX350



LXe DM XMASS



LAr DM WARP140



Discrimination in LAr



Electron recoil discrimination



LAr DM ArDM 1t



LAr DM DEAP-3600



LAr/LNe CNS CLEAR (proposal)



LAr CNS LLNL proposal



LXe CNS ZEPLIN-III



LXe/LAr CNS RED Collaboration



Other not mentioned projects



Conclusion



Title



Title



Title



Title



Discrimination in LAr



PS Discrimination in LAr Lippincott08



PS Discrimination in LAr Lippincott08



PS Discrimination in LAr Lippincott08



Simulated 0.5 MeV electron tracks





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