| 摘要 |
<p>An MRI magnetic field generator which does not give a subject an offensive feeling, generates a uniform static magnetic field in an imaged space stably, and produces a clear image with a high sensitivity while its size is small and its cost is low. A magnetic field reinforcing coil (14) is attached to the peripheral parts of a pair of pole pieces which face each other with a gap therebetween. Hence the adjustment of the magnetic field intensity is possible with a simple construction without changing the form of a magnetic circuit and increasing the weight and area of a magnet. Further, the direction of a current applied to the coil is adjusted to enable the adjustment of the magnetic field distribution and the improvement of the magnetic field uniformity.</p> |
