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21/11/2013

Discussion: développement du système de lecture des photomultiplicateurs pour le prototype de détecteur Argon liquide de LBNO. Réunion: APC, LAPP, Omega. 21/11/2013. Large scale 300 t LAr Prototype at CERN. WA105. To install in CERN North Area. With charged particle beam.

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21/11/2013

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  1. Discussion: développement du système de lecture des photomultiplicateurs pour le prototype de détecteur Argon liquide de LBNO Réunion: APC, LAPP, Omega 21/11/2013

  2. Large scale 300 t LAr Prototype at CERN WA105 To install in CERN North Area With charged particle beam 6x6x6m3 active volume LAr TPC detector with double phase + charge amplification + 2-D collection readout PCB anode. Exposure to charged hadrons beam (1-20 GeV/c)

  3. Liquid Argon TPC 25 cm 85 cm Muon decay Run 960, Event 4 Collection Left Homogeneous massive target and ionization detector Principle: 3D imaging in a large volume Liquid Argon TPC • very pure LAr (<0.1ppb) electrons can drift over large distances (>1.5 m) • UV scintillation light (5000 photons/mm @128 nm) for t0 • Primary ionization in LAr: 1 m.i.p ~ 20000 e- on 3 mm • 3D reconstruction with ~1 mm resolution Double phase: signal readout on 2 view collection anode! Signal amplified in the gas ICARUS T600 test

  4. Prototyping is needed for this very large detector Principle: double phase Argon (liquid / gaz) readout after drift distances up to 20m Several technical items have to be validated with a large scale prototype • LNG tank construction technique • Purity in non evacuated membrane tank • Long electron drift distance • High voltage system for the cage field 300-600 KV • Double phase readout • Cold front end electronic • Interaction reconstruction in the TPC

  5. Large scale 300 t LAr Prototype at CERN WA105

  6. Présentation au CS IN2P3 27/06/2013 (D. Autiero)

  7. Schéma du développement PMm2 (2010):

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