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THE MICE facility at RAL

THE MICE facility at RAL. Muon Ionization Cooling is a key technology for neutrino factory and muon colliders Neutrino factory -- precise and full determination of neutrino mixing parameters -- CP violation and neutrino mass hierarchy, universality. Muon collider

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THE MICE facility at RAL

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  1. THE MICE facility at RAL Muon Ionization Cooling is a key technology for neutrino factory and muon colliders Neutrino factory -- precise and full determination of neutrino mixing parameters -- CP violation and neutrino mass hierarchy, universality. Muon collider -- narrow/precise center of mass energy (10-5) -- Higgs couplings (SM Higgs and Susy Higgs, CP violation) -- High energy (up to 4 TeV ECM] Multi-step programme with interesting goals at every phase Paul Kyberd ESGARD Omia 10september 2007

  2. Intense K physics Intense Low-E muons Neutrino Factory Higgs(es) Factory(ies) Energy Frontier -> 5 TeV circa 1997-1999 US, Europe, Japan Possible layout of a muon complex on the CERN site. Paul Kyberd ESGARD Omia 10september 2007

  3. High-power target . 4MW . good transmission MERIT experiment (CERN) Major challenges tackled by R&D expts Fast muon cooling MICE (RAL) Fast, large aperture accelerator (FFAG) EMMA (Daresbury) ISS baseline Paul Kyberd ESGARD Omia 10september 2007

  4. MICE Channel Hydrogen absorbers Magnetic spectrometer Variable emittance beam m Magnetic spectrometer RF cavities TOF Paul Kyberd ESGARD Omia 10september 2007

  5. Muon Ionization Cooling Experiment MICE FIRST BEAM IN JANUARY 2008 Final PID: TOF Calorimeter Demonstrate feasibility and performance of a section of cooling channel by 2010 4T spectrometer II Status: Approved at RAL(UK) First beam: 01-2008 Funded in: UK,CH,It,JP,NL,US, PRChina Further requests: JP,UK Cooling cell (~10%) b=5-45cm, liquid H2, RF 4T spectrometer I Liquid-hydrogen absorbers TOF Single-m beam ~200 MeV/c Construction: 200MHz RF cavity with beryllium windows Scintillating-fiber tracker Paul Kyberd ESGARD Omia 10september 2007

  6. The MICE BEAM LINE ISIS 50 Hz 800 MeV protons MICE target ~few Hz, 1 ms spill 600 muons per second m/p purity 10-3 monitored emittance from 2-10 mm.radian track-by-track measurement 10-3 meas of emittance in ~1 day TOF1 TOF0 CKOV Sci-fi tracker Paul Kyberd ESGARD Omia 10september 2007

  7. Electronic area and control room target High resolution matched spectrometers: with PID Variable emittance μ beam RF power and certified for H2 work Paul Kyberd ESGARD Omia 10september 2007

  8. DSA Part of the MICE team after the installation of the first D.S.A. magnet Paul Kyberd ESGARD Omia 10september 2007

  9. MICE Programme m STEP I20/01/08 Commision Beam m Phase I STEP II31/03/08 Beam characterisation m STEP IIISummer 08 DetectorSystematics m Phase II STEP IVSpring 09 Obs of cooling LH2 m STEP VSummer 09 RF. Characterisation m STEP VIEarly 10 Characterise channel m Beyond the baseline 2010-2012 Phase III Paul Kyberd ESGARD Omia 10september 2007

  10. First beam from ISIS closes 20 January 2008 Muon Beamline cryogenic system for liquid Hydrogen design and approval for H2 8MW, 200 MHz RF power supplies Electronics and Control Room area Muon production target spectrometer systemto allow high precision measurement of the emittance of the beam (solenoid, tracker, TOF] Total investment 50-70MEuros Engineering demonstration of the feasibility of cooling Important information for the design of neutrino factory, and Muon collider. Design study of neutrino factory (including analysis of cooling and matching into NF system] is part of EUROn which was recently approved. Paul Kyberd ESGARD Omia 10september 2007

  11. THE PRESENT MICE COLLABORATION -128 collaborators- • Universite Catholique de Louvain,Belgium • University of Sofia,Bulgaria • The Harbin Institute for Super Conducting Technologies PR China • INFN Milano, INFN Napoli,INFN Pavia, INFN Roma III,INFN Trieste,Italy • KEK, Kyoto University, Osaka University,Japan • NIKHEF, The Netherlands • CERN • Geneva University, Paul Scherrer InstitutSwitzerland • Brunel,Cockcroft, Glasgow, Liverpool, ICL London, Oxford, Darsbury, RAL, SheffieldUK • Argonne National Laboratory, Brookhaven National Laboratory, Fairfield University, University of Chicago, Enrico Fermi Institute, Fermilab, Illinois Institute of Technology, • Jefferson Lab, Lawrence Berkeley National Laboratory, UCLA, Northern Illinois University, University of Iowa, University of Mississippi, UC Riverside, University of Illinois at Urbana-Champaign USA Paul Kyberd ESGARD Omia 10september 2007

  12. To 2010 demonstration of baseline cooling channel and collaboration with EUROν and IDS. Trans-national access : funding to allow Europeans to travel to and work at RAL. (RAL to provide administration). No contribution to the facility itself and about 15% of the running costs (compared with a 20% maximum) Post 2010 – use of the facilities to test more advanced concepts. Paul Kyberd ESGARD Omia 10september 2007

  13. Ensure presence of European partners in MICE at the experiment while it takes data, Provide access to data, analysis tools, and means of communication. Aim attract new European partners Request 799k€ over 4 years – compares with MICE running cost of 2.4M€ over the same period an assumed matching contribution from national agencies and a total investment of 50-70M€ Strong support from John Womersley “Director of science and technology strategy”. STFC MICE Trans-national access Paul Kyberd ESGARD Omia 10september 2007

  14. TA activity – enhancing the Phase II project As soon as proposal is accepted: 1. hire person in charge of MICE web site, communications, reconstruction and analysis software and data repositories. 2. call for access and experiment proposals , 3. selection of review panel Three months later and then every 6 or 12 months as requested: meeting of review panel and examination of proposals. Proposals will be reviewed also by the MICE management who will provide their comments. will be run by RAL administration Paul Kyberd ESGARD Omia 10september 2007

  15. VERY preliminary assessment of request to EU Needs: -- 1) travel and subsistance, contribution to running cost and common expenses of facility -- 2) communication Guru -- 3) incentives to welcome new collaborators/experiments notes: * this represents a small fraction of the general service jobs **) this represents about 50% of the costs likely to be needed by presentMICE-{EU but non-UK} collaborators – more could be used! ***) total running cost estimated to 600k€/year = 2.4 M€ in 4 years Paul Kyberd ESGARD Omia 10september 2007

  16. Beyond PHASE II -- Ideas for « Phase III » ONCE PHASEII is complete, we will have equipped the MICE hall with -- spectrometers, TOF and PID able to measure emittance to 10-3 -- 8 MW of 201MHz RF power -- 23 MV of RF acceleration -- Liquid Hydrogen infrastructure and safety -- Production target MICE can become a facility to test new cooling ideas. higher performance and/or more cost effective A. with the existing MICE hardware to test optics beyond the neutrino Factory study II: non flip optics, low-beta optics (down to 5 cm vs 42 cm nominal) other absorber materials He, Li, LiH, etc.. LN2 cooled RF cavities Possible ideas B. with additional hardware: -- A. Skrinsky to test a lithium lense available at Novosibirsk -- Muons Inc. to test a section of helicoidal channel (MANX) -- New RF structures Paul Kyberd ESGARD Omia 10september 2007

  17. THE problem with Muon Ionization cooling (and phase rotation etc...) isRF in guiding mag. field Max stable gradient degrades quickly with B 200MHz MICE cooling cell E // B test set-up (800 Mhz) Gradient in MV/m Peak Magnetic Field in T at the Window Paul Kyberd ESGARD Omia 10september 2007

  18. Palmer pointed out that by designing the cavity with E and B perpendicular to each other one would probably eliminate the problem and perhaps even allow much higher gradients.... BP suggested an experimental test: note similarity with CERN proposal (1999) for 88MHz cooling channel Lombardi et al. cost of one such test-cooling cell is estimated at roughly 4M€ Paul Kyberd ESGARD Omia 10september 2007

  19. Tests of alternative cooling schemes eg helicoidal cooling Paul Kyberd ESGARD Omia 10september 2007

  20. JRA on advanced ionization cooling techniques • 2007-2008 Study of alternate configurations for muon cooling cells • 1. removing some of the potential limitations of the standard MICE cooling cell; (effect of magnetic field on dark current emission) • 2. extending the range of emittance or momentum, or providing longitudinal cooling; • 3. reducing the cost of a cooling cell while keeping or improving the performance. • 2009: theoretical study of non standard MICE optics; design and engineering of possible new cooling cells. Choice of cell(s) to pursue for further development. • 2010: Engineering design and calls for tender on new cell construction • Test of a single cavity prototype • 2011: Full cell construction • 2012: Test of advanced cell Paul Kyberd ESGARD Omia 10september 2007

  21. VERY preliminary assessment of request to EU Total value of MICE effort in the same period amounts to 50-70M€ Implied contribution by other collaborator not included above: Contributions from non-EU collaborators :USA and possibly Russia Paul Kyberd ESGARD Omia 10september 2007

  22. Aims Improving the standard MICE cooling cell components Improving cooling performance. Improved engineering aimed at cost reduction (and performance enhancement) Examples (not exhaustive) Lithium lens, helicoidal cooling, novel cavity structure. Request 3.825M€ over 4 years, compared with an existing investment of 50-70M€ Support Strong support from John Womersley (RAL/STFC). Support from STFC, INFN, Swiss National foundation awaits MICE funding agency committee on 21st September 2007. Synergies R. Seviour’s RF work – 200MHz dyacrode power source at CERN MICE JRA: Summary Paul Kyberd ESGARD Omia 10september 2007

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