1968•Journal of Physics D Applied PhysicsOpen access

Dipole and quadrupole planar magnetic fields produced by line currents

Francine M. Deutsch

Abstract

It is shown that planar dipole and quadrupole magnetic fields can be obtained by means of line currents, and that with suitable geometries homogeneous dipole fields and constant-gradient quadrupole fields can be produced. Expressions are derived for the magnetic field of a quadrupole lens having coils of annular sector geometry.

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Key concepts: Quadrupole, Quadrupole magnet, Dipole, Magnetic field, Magnetic dipole, Planar, Physics, Homogeneous