MAGNET FOR A NUCLEAR MAGNETIC RESONANCE TOMOGRAPH

摘要

A magnet of permanent magnet material for use in a nuclear spin tomograph has a longitudinally extending cavity for receiving a patent, the cavity and the outer contour of the magnet being substantially rectangular. The magnet comprises simple prismatic parts which are assembled unmagnetized. Upon assembly, the magnet is magnetized so that an approximately homogeneous magnetic field prevails in the cavity and the space outside the magnet is approximately free of fields. Magnetically soft plates are disposed on the inside surfaces of two horizontal legs of the magnet.