Publication detail

Correction method for non-homogeneous magnetic field

BARTUŠEK, K. HADINEC, M.

Original Title

Correction method for non-homogeneous magnetic field

Type

conference paper

Language

English

Original Abstract

In this work, we developed a method, which is used for approximation of basic magnetic field B0 inside a specific spherical volume. This method uses Legendre multinominals expansion of magnetic flux density measured in discrete points on spherical volume. Using optimization technique of Least square method we modeled map of magnetic flux density on the desired surface and compared it to measured values of magnetic flux density. The coefficients of spherical function expansion obtained from approximation process can be used for determination of shimming currents which are feeding correction coils of tomograph. The results of approximated fields are described and compared to measured fields in the experimental part of this article.

Keywords

NMR, optimization methods, shimming, legendre multinominals, homogeneity

Authors

BARTUŠEK, K.; HADINEC, M.

RIV year

2008

Released

8. 9. 2008

Publisher

UTEE, FEKT VUT v Brně

Location

Paris

ISBN

978-80-214-3718-0

Book

Proceedings of the International Workshop on Teleinformatics and Electromagnetic Field

Pages from

1

Pages to

5

Pages count

5

BibTex

@inproceedings{BUT27567,
  author="Karel {Bartušek} and Michal {Hadinec}",
  title="Correction method for non-homogeneous magnetic field",
  booktitle="Proceedings of the International Workshop on Teleinformatics and Electromagnetic Field",
  year="2008",
  pages="1--5",
  publisher="UTEE, FEKT VUT v Brně",
  address="Paris",
  isbn="978-80-214-3718-0"
}