This paper compares some optical properties of different spiral inflectors
using the program CASINO. The electric field distribution in the inflectors
has been numerically calculated from an electric potential map produced by
the program RELAX3D. The magnetic field is assumed to be constant. We have
also made an effort to minimize the inflector fringe field using the RELAX
3D program. (C) 1999 Elsevier Science B.V. All rights reserved.