Permanent magnet assemblies for use in medical applications

摘要: Permanent magnet (10) assemblies are disclosed for use in medical applications, particularly permanent (11, 12) Magnetic Resonance Imaging (MRI) and/or Therapy (MRT) to produce a volume of substantially uniform magnetic field restricted part the patient's body region either adjacent surface one assembly or between set first and second (15, 16), leaving open access body. The consist plurality annular (20) concentric magnets spaced-apart along their axis symmetry. A method constructing such (21) is disclosed, using equi-angular segments permanently magnetized.