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While the secondary absorbers contribute to cooling, their main purpose is to stop electrons released in the RF cavities. The RF cavities are designed to accelerate the muons. As they cannot be synchronized with the incoming muons, some muons will be accelerated while others will be decelerated. The
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will be transported from a target dipping into the fringe of the ISIS proton beam, through a pion decay channel, into a muon transport line and then into MICE. For efficient use of muons it is desirable to have a reasonably good match between the transport beamline and the cooling channel, with
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Muons pass through the cooling channel one by one. The muons' phase space coordinates will be measured by time of flight scintillators and scintillating fibre tracking detectors upstream and downstream of the cooling channel. Muons will be distinguished from other particles in the beam using a
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MICE will reduce the transverse emittance of a muon beam over a single 7 m cooling cell and measure that reduction. The original MICE design was based on a scheme outlined in
Feasibility Study II., it was revised significantly in 2014. Pions will be produced from a target in the
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The muon emittance is measured with scintillating-fibre tracking detectors in a 4 Tesla magnetic field both before and after the main cooling cell. A diffuser can be placed in front of the first tracking detector to study cooling of muon beams with larger emittance.
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of a beam is reduced in order to reduce the beam size, so that more muons can be accelerated in smaller aperture accelerators and with fewer focussing magnets. This might enable the construction of high intensity muon accelerators, for example for use as a
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selection performed in analysis. Also, the beamline must suppress non-muon events from entering the cooling channel. A beam rate of a few hundred muons per second is expected.
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combination of the spectrometers and the so-called
Particle Identification (PID) detectors, three time of flight scintillators, a Cerenkov detector and a calorimeter.
80:) cells, magnets are used to focus and analyze the muon beam. MICE will measure cooling performance over a range of beam momenta between about 150 and 250 MeV/c.
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Bogomilov, M.; et al. (MICE collaboration) (2017). "Design and expected performance of the MICE demonstration of ionization cooling".
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The baseline main absorber is a LiH disk 65 mm thick. Alternatively, a 350 mm long liquid hydrogen vessel can be used.
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detectors are the outermost components of the experiment. A calorimeter at the end distinguishes electrons from muons.
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time of flight measurements allow a calculation of the electric field the muons experienced in the cavities.
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and transported along a beamline where most will decay to muons before entering MICE. Cooling is tested with
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Adams, D.; et al. (2015). "Electron-Muon Ranger: Performance in the MICE Muon Beam".
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As of 2017, MICE is taking data, and upgrades to a longer cooling cell are considered.
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47th Muon
Ionization Cooling Experiment (MICE) Collaboration Meeting
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The MICE muon beamline provides a low intensity muon beam for MICE.
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MICE combines systems to identify, track, steer and cool muons.
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The main cooling cell consists of a secondary LiH absorber, a
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283:(ed.) S. Ozaki, R. Palmer, M. Zisman, and J. Gallardo,
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Physical Review
Special Topics: Accelerators and Beams
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198:"RE11/MICE : Muon Ionization Cooling Experiment"
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Feasibility Study-II of a Muon-Based
Neutrino Source
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experiment (RE11). MICE is designed to demonstrate
18:International Muon Ionization Cooling Experiment
104:To reject background from pions and electrons,
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352:Presentation by Kenneth Richard Long at the
419:Science and Technology Facilities Council
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260:10.1103/PhysRevAccelBeams.20.063501
414:Research institutes in Oxfordshire
281:The BNL Advanced Accelerator Group
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35:. The experiment is a recognized
168:"Recognized Experiments at CERN"
47:. This is a process whereby the
202:The CERN Experimental Programme
332:10.1088/1748-0221/10/12/P12012
172:The CERN Scientific Committees
33:Rutherford Appleton Laboratory
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302:Journal of Instrumentation
378:MICE experiment record
174:. CERN. Archived from
121:radio frequency cavity
404:Particle accelerators
399:Particle experiments
424:Vale of White Horse
324:2015JInst..10P2012A
252:2017PhRvS..20f3501B
66:ISIS neutron source
26:high energy physics
106:Cerenkov detectors
72:(LiH) crystals or
41:ionization cooling
289:BNL-52623, (2001)
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409:CERN experiments
373:Official website
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382:INSPIRE-HEP
393:Categories
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243:1701.06403
208:20 January
182:20 January
155:References
29:experiment
138:Detectors
49:emittance
340:26941784
268:54956640
84:Beamline
320:Bibcode
248:Bibcode
31:at the
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204:. CERN
147:Status
336:S2CID
310:arXiv
264:S2CID
238:arXiv
90:Pions
45:muons
210:2020
184:2020
108:and
37:CERN
22:MICE
20:(or
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