  The requirements and operating conditions for a Muon Collider Storage Ring
(MCSR) pose significant challenges to superconducting magnets. The dipole
magnets should provide a high magnetic field to reduce the ring circumference
and thus maximize the number of muon collisions during their lifetime. One
third of the beam energy is continuously deposited along the lattice by the
decay electrons at the rate of 0.5 kW/m for a 1.5-TeV c.o.m. and a luminosity
of 1034 cm-2s-1. Unlike dipoles in proton machines, the MCSR dipoles should
allow this dynamic heat load to escape the magnet helium volume in the
horizontal plane, predominantly towards the ring center. This paper presents
the analysis and comparison of radiation effects in MCSR based on two dipole
magnets designs. Tungsten masks in the interconnect regions are used in both
cases to mitigate the unprecedented dynamic heat deposition and radiation in
the magnet coils.
