Magnet array for a portable magnetic resonance imaging system

Conventional magnetic resonance imaging (MRI) scanners are bulky and heavy. It limits their applications at places, for example, in an ambulance or in a combat field hospital. The disadvantages of a conventional MRI system have led to increasing interests in the development of a portable MRI one. One of the challenges for a portable MRI scanner is to build a homogenous static magnetic field within a volume of the size of human parts, for example, human head, for imaging. In this paper, we presented the design and development of a modified permanent magnet array for a portable MRI scanner. The measurement method of the magnetic field is included.