Solenoid Magnetic Field Measurement

Solenoid Magnetic Field Measurement

• MICE solenoid includes 5 coils

• First solenoid expected at FNAL for magnetic field measurements in April

• Measurements to be done with ZipTrack system.

Terry Hart, NFMC CM, March 18, 2008 23 of 29

ZipTrack System

• Long metal beam through spectrometer bore– Smaller beam section insertion for MICE– Carriage on beam holds Hall magnetic field probe– Probe in one of six carriage positions

• Beam/carriage location controlled by LabView

Frame with 6 places for Hall probe

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Mike Roman, Terry Hart with smallerbeam insert for MICE spectrometer

ZipTrack system

MICE Spectrometer and Muon Beam

• Spectrometer dimensions– 20.5 cm bore radius– 3 m long

• Largest MICE beam– 140 MeV/c, 10 mm emittance– 5 cm at 1 RMS

• Map interior of spectrometer– 3 cm grid transverse to beam axis (x, y)– ±15 cm in (x, y)