| Pion
to Muon Decay Channel |
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| • | Challenge: high
emittance of target pions |
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| – | Currently
come from a 20cm tantalum rod |
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| • | Solution:
superconducting solenoids |
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| – | S/C
enables a high focussing field |
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| – | Larger
aperture than quadrupoles |
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| • | Basic lattice
uses regular ~4T focussing |
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| – | Initial
smaller 20T solenoid around target |
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| – | 30m
length = 2.5 pion decay times at 200MeV |
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