MICE File List » Asfandiyarov_NNN11_poster_abstract.txt
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Title: |
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Progress in the construction of the MICE cooling channel |
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Abstract: |
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The international Muon Ionization Cooling Experiment (MICE), sited |
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at Rutherford Appleton Laboratory in the UK, aims to build and test |
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one cell of a realistic ionization cooling channel lattice. This |
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comprises three Absorber Focus Coils (AFC) modules and two RF Coupling |
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Coil (RFCC) modules; both are technically challenging. The Focus Coils |
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(FC) are dual-coil superconducting solenoids, in close proximity, |
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wound on a common mandrel. At the center of each FC there is a 20 |
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letters liquid-hydrogen absorber, operating at about 14 K, to serve as |
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the energy loss medium for the ionization cooling process. The |
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longitudinal beam momentum is restored in the RFCC modules, each of |
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which houses four 201.25-MHz RF cavities whose irises are closed with |
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42-cm diameter thin Beryllium windows. To contain the muon beam, each |
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RFCC module also has a 1.4-m diameter superconducting coupling |
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solenoid surrounding the cavities. Both types of magnet are cooled |
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with multiple 2-stage cryogenic-coolers, each delivering 1.5 W of |
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cooling at 4 K. Designs for all components are complete and |
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fabrication is under way. Descriptions of the various components, |
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design requirements, and construction status is presented. |