Limits to the Measurement of the Magnetic Susceptibility Using NMR Method

0367526 - ÚPT 2012 RIV US eng C - Conference Paper (international conference)
Marcon, P. - Bartušek, Karel - Čáp, M.
Limits to the Measurement of the Magnetic Susceptibility Using NMR Method.
PIERS 2011 Suzhou Proceedings. Cambridge: The Electromagnetics Academy, 2011, s. 76-79. ISBN 978-1-934142-18-9.
[PIERS 2011 Suzhou. Suzhou (CN), 12.09.2011-16.09.2011]
Institutional research plan: CEZ:AV0Z20650511
Keywords : magnetic susceptibility * NMR
Subject RIV: JA - Electronics ; Optoelectronics, Electrical Engineering

The paper deals with modeling of the distribution of the magnetic field close to the non-ferromagnetic substances. Non-ferromagnetic cylinders were placed in the center of the cube shaped static magnetic field B0 = 4,7T. Material of the specimen reacts with the static magnetic field and creates a local changes of this field close to the specimen surface. Changes of the static magnetic field hold the possibilities to calculate the magnetic susceptibility of used material. In this article, will be discuss what under conditions is possible to use 1D and 2D method. Model results enable to set up the limits of used method. Consequently, the influence of the relation between length and diameter of the specimen on the accuracy of the magnetic susceptibility calculation is examined. As a specimen materials were used the varied size aluminum, platinum, bismuth and copper cylinders.
Permanent Link: http://hdl.handle.net/11104/0202175