Publication detail

Magnetic susceptibility measurement using 2D magnetic resonance imaging

MARCOŇ, P. BARTUŠEK, K. POKLUDOVÁ, M. DOKOUPIL, Z.

Original Title

Magnetic susceptibility measurement using 2D magnetic resonance imaging

English Title

Magnetic susceptibility measurement using 2D magnetic resonance imaging

Type

journal article - other

Language

en

Original Abstract

The authors describe a nuclear magnetic resonance (NMR) method for measuring the magnetic susceptibility of bar-shaped samples that have an arbitrary cross-section and do not produce an MR signal. The method is based on the measurement of the 2D map of the reaction field in the vicinity of a non-ferromagnetic sample and on the calculation of magnetic susceptibility from a known reaction field. The verification of the technique was realized via modelling the measured configuration in the ANSYS program by means of the finite element method and through an experimental measurement of MR-compatible and MR-incompatible materials carried out on a tomograph. A great advantage of the proposed susceptibility evaluation method consists in the use of only standard commercially used devices without the need of any special sequences. The method is suitable for bar-shaped samples having an arbitrary cross-section; moreover, conditions are given for the selection of the cross-section/length ratio of a sample to be measured.

English abstract

The authors describe a nuclear magnetic resonance (NMR) method for measuring the magnetic susceptibility of bar-shaped samples that have an arbitrary cross-section and do not produce an MR signal. The method is based on the measurement of the 2D map of the reaction field in the vicinity of a non-ferromagnetic sample and on the calculation of magnetic susceptibility from a known reaction field. The verification of the technique was realized via modelling the measured configuration in the ANSYS program by means of the finite element method and through an experimental measurement of MR-compatible and MR-incompatible materials carried out on a tomograph. A great advantage of the proposed susceptibility evaluation method consists in the use of only standard commercially used devices without the need of any special sequences. The method is suitable for bar-shaped samples having an arbitrary cross-section; moreover, conditions are given for the selection of the cross-section/length ratio of a sample to be measured.

Keywords

magnetic flux density, magnetic susceptibility, MRI, MR signal, reaction field

RIV year

2011

Released

19.08.2011

Publisher

IOP PUBLISHING

Pages from

1

Pages to

8

Pages count

8

URL

BibTex


@article{BUT72946,
  author="Petr {Marcoň} and Karel {Bartušek} and Michaela {Pokludová} and Zdeněk {Dokoupil}",
  title="Magnetic susceptibility measurement using 2D magnetic resonance imaging",
  annote="The authors describe a nuclear magnetic resonance (NMR) method for measuring the magnetic susceptibility of bar-shaped samples that have an arbitrary cross-section and do not produce an MR signal. The method is based on the measurement of the 2D map of the reaction field in the vicinity of a non-ferromagnetic sample and on the calculation of magnetic susceptibility from a known reaction field. The verification of the technique was realized via modelling the measured configuration in the ANSYS program by means of the finite element method and through an experimental measurement of MR-compatible and MR-incompatible materials carried out on a tomograph. A great advantage of the proposed susceptibility evaluation method consists in the use of only standard commercially used devices without the need of any special sequences. The method is suitable for bar-shaped samples having an arbitrary cross-section; moreover, conditions are given for the selection of the cross-section/length ratio of a sample to be measured.",
  address="IOP PUBLISHING",
  chapter="72946",
  institution="IOP PUBLISHING",
  number="22",
  volume="2011",
  year="2011",
  month="august",
  pages="1--8",
  publisher="IOP PUBLISHING",
  type="journal article - other"
}