BNL, Upton, Long Island, New York, USA
Fermilab, Batavia, USA
One option for acceleration Muons from 30 to 750 GeV is to use a rapid cycling synchrotrons with frequencies of 400-550 Hz. A lattice has been proposed which employs 8T, 4.2 m long superconducting dipole magnets which are interleaved with 1.8T, 7.5 m long normal conducting dipoles. The present design of the normal conducting dipoles for this lattice is based on grain oriented steel, which possesses good magnetic properties in the direction of the grains. Grain oriented steel however is highly anisotropic, which can potentially lead to field quality problems. In this paper we present an alternative design, which suggests lower losses, a higher peak field and better field quality.
