|Magnet Type:||LF/TF Helmholtz|
|Field Strength/Orientation:||0.45 T / z, y|
|Field Calibration:||0.0006 T/A (6 G/A)|
|Counter acceptance:||3 p|
|Experiment types:||TF with high momentum muons, LF, TF, LTF, ZF, RF-microwave|
The The SFUmu apparatus works in two orientations: With its main coils transverse to the beam direction, it is suitable for moderately-high TF measurements using backward muon beams, which do not bend too much in the applied field. When turned axial to the beam it is another Omni spectrometer, but with a higher field limit than Omni-LAMPF. This makes it the most omni-purpose of the Omni apparatuses, but with some compromises.
The prime motivation for this duality was the magnet: It delivers 6 A/G allowing experiments at 4.5 kG (0.45 T) with only 750 A supplied. The coils may run up to 850 A if the cooling water flow is sufficient, so in M20 SFUmu might deliver 0.5 T.
The drawback is the small spacing of the coils - only 3 inches - preventing side access for most counters and cryostats, and giving a quite small region of homogeneous field.
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