Conference Paper

The injection kicker system for the muon g-2 experiment

Brookhaven Nat. Lab., Upton, NY
DOI: 10.1109/PAC.1995.505409 Conference: Particle Accelerator Conference, 1995., Proceedings of the 1995, Volume: 3
Source: IEEE Xplore


The muon g-2 experiment is designed to measure the anomalous
magnetic moment of the muon to an accuracy of 0.35 ppm by measuring the
difference between the spin precession frequency and the cyclotron
frequency of the particle in a known magnetic field. The injection
kicker is designed to deflect 3.094 GeV/c muons by an angle of 10 mrad
into a storage ring with a radius of 7.112 m. No magnetic materials can
be used in or near the beam line because of the high precision with
which the field of the main dipole magnets must be known. Eddy currents
induced in the vacuum chamber by the fast kicker pulse, and their effect
on the main dipole field must also be considered. An air core magnet
which is driven by an underdamped capacitor discharge modulator using a
spark gap switch has been designed. This design, as well as test data,
will be presented

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