Publication detail

Signal processing of 3D reaction field in vicinity of non-ferromagnetic specimen and its magnetic susceptibility calculation

MARCOŇ, P. GESCHEIDTOVÁ, E. BARTUŠEK, K.

Original Title

Signal processing of 3D reaction field in vicinity of non-ferromagnetic specimen and its magnetic susceptibility calculation

English Title

Signal processing of 3D reaction field in vicinity of non-ferromagnetic specimen and its magnetic susceptibility calculation

Type

journal article

Language

en

Original Abstract

To measure magnetic susceptibility several methods are employed that use regular-shape specimens of diamagnetic and paramagnetic substances. This paper describes an MRI method for measuring the magnetic susceptibility of specimens in the shape of cylindrical bars of arbitrary diameter that do not produce an MR signal. The proposed method is based on measuring a 3D map of the reaction field in the vicinity of the specimen. This reaction field was mapped by Gradient Echo method (GE). The method can be used for specimens of irregular cross-section and it is not necessary to use mathematical simulation of magnetic field distribution. A great advantage of our method for susceptibility evaluation consists in using only standard commercially used devices without needing any special sequence.

English abstract

To measure magnetic susceptibility several methods are employed that use regular-shape specimens of diamagnetic and paramagnetic substances. This paper describes an MRI method for measuring the magnetic susceptibility of specimens in the shape of cylindrical bars of arbitrary diameter that do not produce an MR signal. The proposed method is based on measuring a 3D map of the reaction field in the vicinity of the specimen. This reaction field was mapped by Gradient Echo method (GE). The method can be used for specimens of irregular cross-section and it is not necessary to use mathematical simulation of magnetic field distribution. A great advantage of our method for susceptibility evaluation consists in using only standard commercially used devices without needing any special sequence.

Keywords

magnetic susceptibility, non-ferromagnetic, reaction field, signal processing

RIV year

2012

Released

03.04.2012

Publisher

Elektrorevue

Pages from

14

Pages to

19

Pages count

6

URL

BibTex


@article{BUT90461,
  author="Petr {Marcoň} and Eva {Gescheidtová} and Karel {Bartušek}",
  title="Signal processing of 3D reaction field in vicinity of non-ferromagnetic specimen and its magnetic susceptibility calculation",
  annote="To measure magnetic susceptibility several methods are employed that use regular-shape specimens of diamagnetic and paramagnetic substances. This paper describes an MRI method for measuring the magnetic susceptibility of specimens in the shape of cylindrical bars of arbitrary diameter
that do not produce an MR signal. The proposed method is based on measuring a 3D map of the reaction field in the vicinity of the specimen. This reaction field was mapped by Gradient Echo method (GE). The method can be used for specimens of irregular cross-section and it is not necessary to use mathematical simulation of magnetic field distribution. A great advantage of our method for susceptibility evaluation consists in using only standard commercially used devices without needing any special sequence.",
  address="Elektrorevue",
  chapter="90461",
  institution="Elektrorevue",
  number="1",
  volume="2012 (3)",
  year="2012",
  month="april",
  pages="14--19",
  publisher="Elektrorevue",
  type="journal article"
}