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Manuscript Title: SATDSK: a numerical simulation of the magnetic field due to saturated iron in cyclotron poletips.
Authors: G.S. McNeilly
Program title: SATDSK
Catalogue identifier: ABKI_v1_0
Distribution format: gz
Journal reference: Comput. Phys. Commun. 23(1981)199
Programming language: Fortran.
Computer: IBM 360/91.
Operating system: MVT.
RAM: 144K words
Word size: 8
Keywords: Nuclear physics, Magnetic fields, Uniform magnetization, Saturated iron, Cyclotrons.
Classification: 17.1.

Nature of problem:
The program calculates the magnetic field due to uniformly magnetized iron poletips, with symmetries appropriate for cyclotron design studies.

Solution method:
The assumption of uniformly magnetized iron reduces the field calculation from one of three-dimensional volume integrals to two- dimensional surface integrals, with corresponding reductions in running time and array sizes, as well as reduced complexity of input parameters. The uniform magnetization assumption is quite appropriate for high magnetic fields which would be found in many recent superconducting cyclotron designs.

Fields are calculated only in the median plane for median-plane- symmetric iron poletips.

Running time:
Approximately 0.15 s per field point.