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MER cury I ntense T arget ( MERIT ) Experiment – or nTOF-11

MER cury I ntense T arget ( MERIT ) Experiment – or nTOF-11. Solenoid and Cryogenics Safety Review Ilias Efthymiopoulos Adrian Fabich. Solenoid and Cryogenics Safety Review CERN – February 3, 2006. Mercury fountain, Funtació Juan Miró, Barcelona - Spain. Review Panel Cryogenics experts:

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MER cury I ntense T arget ( MERIT ) Experiment – or nTOF-11

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  1. MERcury Intense Target (MERIT) Experiment – or nTOF-11 Solenoid and Cryogenics Safety Review Ilias Efthymiopoulos Adrian Fabich Solenoid and Cryogenics Safety Review CERN – February 3, 2006 Mercury fountain, Funtació Juan Miró, Barcelona - Spain

  2. Review Panel Cryogenics experts: Goran Perinic (AT/ECR) Vladislav Benda (AT/ACR) Cryogenics safety: Karl Gunnar Lindell (SC/GS) Mechanical safety: Benoit Delille (SC/GS) Andrea Astone (SC/GS) General Safety: Bruno Pichler (SC/GS) Paolo Cennini (AB/DSO) Thanks a lot for accepting the invitation Solenoid & Cryogenics Review I. Efthymiopoulos CERN

  3. Solenoid & Cryogenics Review Agenda http://indico.cern.ch/conferenceDisplay.py?confId=673 I. Efthymiopoulos CERN

  4. Solenoid & Cryogenics Review Scope • Review the Solenoid and the associated Cryogenics • Overall design & operation foreseen at CERN • Mechanical construction • Production & safety tests at production • Tests foreseen before and after delivery at CERN • What is NOT included: • the MERIT experiment, mercury loop, radiation, access, … Goal • Produce a summary report with comments or recommendations to be followed up • Committed to final approval of the installation at CERN • Subject to final inspection in situ • Deadline : Wednesday February 8, 2006 I. Efthymiopoulos CERN

  5. The MERIT Experiment Introduction few words about the experiment….

  6. The MERIT Experiment (1/3) We propose to perform a proof-of-principle test of a target station suitable for a Neutrino Factory or Muon Collider source using a 24-GeV proton beam incident on a target consisting of a free mercury jet that is inside a 15-T capture solenoid magnet. Proposal submitted to INTC – May 2004 Experiment approved as nTOF-11  MERIT Target • 1-cm diameter Hg jet, v  20m/s • PS Proton beam: 24 GeV/c • Max. 3  1013 protons/pulse, • Pulse length 0.52 msec • ~100 (HI) pulses in total • Total limit: 3  1015 protons on target • Meson collection using a 15-T solenoid time Hg - jet Interaction with beam Recovery From previous tests @ CERN + BNL I. Efthymiopoulos CERN

  7. Solenoid Target chamber Hg-jet hydraulic system Hg container The MERIT Experiment (2/3) Proton Beam I. Efthymiopoulos CERN

  8. The MERIT Experiment (3/3) • Located in the TT2A tunnel upstream of the nTOF target • Data taking: two-weeks at the PS startup in 2007 – second slot later as reserve Access Cryogenics exhaust line to TT10 Electronics + cryogenics concrete blocks Experiment Quads for focusing (new) Collimator & beam instrumentation Beam dump (new) I. Efthymiopoulos CERN

  9. Safety issues (1/2) • Several safety aspects related to the experiment have been discussed with SC experts • No show-stopper was found • Decisions on few items still to be finalized • Access conditions and interlocks defined • No access in TT2,TT2A with magnet ON • Memos on each subject available • http://proj-hiptarget.web.cern.ch (see also EDMS MERIT experiment) • Safety structure of the experiment – ISIEC form • GLIMOS: Adrian Fabich I. Efthymiopoulos CERN

  10. Safety issues (2/2) I. Efthymiopoulos CERN

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