On the superlinear increase of the ultimate intrinsic signal-to-noise ratio with regard to main magnetic field strength in a spherical sample

A. Pfrommer, A. Henning

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

In this study, the increase of the ultimate intrinsic signal-to-noise ratio (UISNR) with regard to main magnetic field strength B0 is investigated. A simplified spherical phantom of human head size is used. In the center of the sphere, the UISNR grows more than quadratically. Within the volume, in which the distance to the center is smaller than 85% of the sphere's radius, the UISNR increases superlinearly. At the surface, the UISNR grows only sublinearly. The SNR of curl-free current patterns grows more than cubically in the center, whereas the SNR of divergence-free current patterns increases quadratically. However, this does not imply, that curl-free modes result in higher SNR than divergence-free modes.

Original languageEnglish (US)
Title of host publicationProceedings of the 2017 19th International Conference on Electromagnetics in Advanced Applications, ICEAA 2017
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages684-687
Number of pages4
ISBN (Electronic)9781509044511
DOIs
Publication statusPublished - Oct 11 2017
Externally publishedYes
Event19th International Conference on Electromagnetics in Advanced Applications, ICEAA 2017 - Verona, Italy
Duration: Sep 11 2017Sep 15 2017

Publication series

NameProceedings of the 2017 19th International Conference on Electromagnetics in Advanced Applications, ICEAA 2017

Conference

Conference19th International Conference on Electromagnetics in Advanced Applications, ICEAA 2017
CountryItaly
CityVerona
Period9/11/179/15/17

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ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Instrumentation
  • Radiation

Cite this

Pfrommer, A., & Henning, A. (2017). On the superlinear increase of the ultimate intrinsic signal-to-noise ratio with regard to main magnetic field strength in a spherical sample. In Proceedings of the 2017 19th International Conference on Electromagnetics in Advanced Applications, ICEAA 2017 (pp. 684-687). [8065339] (Proceedings of the 2017 19th International Conference on Electromagnetics in Advanced Applications, ICEAA 2017). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ICEAA.2017.8065339