OPTIMAL MAGNET DESIGN FOR NMR

Principle of nuclear magnetic resonance (NMR) requires strong static magnetic fields with extremely small inhomogeneity over large space domains. Consequently, optimal magnet design for NMR applications, both spectroscopy and imaging. is a non-trivial example of inversely-posed and ill-conditioned magnetostatic problems that should be solved to an extremely high accuracy. This paper is concerned with two difficulties inherent to computational methodology of optimal magnet design for NMR: (a) spectral methods of magnetic field analysis that would be highly accurate, fast and general, (b) optimization strategy that would eliminate both physically and numerically instable solutions. Examples of real-world magnet designs are presented graphically. © 1990, IEEE. All rights reserved.