Calculation of the Static Magnetic Field in Nonuniform Media

✍ Scribed by J.C. Sharp; J.K. Saunders

• Publisher: Elsevier Science
• Year: 1995
• Tongue: English
• Weight: 980 KB
• Volume: 108
• Category: Article
• ISSN: 1064-1866
• DOI: 10.1006/jmrb.1995.1102

✦ Synopsis

A method is presented for the calculation of the static magnetic field in a paramagnetic or diamagnetic sample. The magnetic field can be calculated everywhere for any given three-dimensional distribution of magnetic susceptibility. In particular, the method may be used to evaluate the field in regions of nonuniform susceptibility. Solutions are calculated directly in a single step by integration over the magnetization current density, requiring considerably less computation than iterative methods. The integral may be evaluated either analytically for cases of special symmetry or numerically otherwise. Results are presented for a number of different three-dimensional susceptibility distributions. The method can be applied to a wide range of magnetostatic problems encountered in NMR. (\odot 1995) Academic Press, Inc.