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Theoretical description of the interaction between birdcage coils and lossy samples
Author(s) -
Harpen Michael D.
Publication year - 1991
Publication title -
medical physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.473
H-Index - 180
eISSN - 2473-4209
pISSN - 0094-2405
DOI - 10.1118/1.596646
Subject(s) - lossy compression , physics , medical imaging , nuclear magnetic resonance , medical physics , computer science , artificial intelligence
An analysis is presented of the interaction between a long cylindrical imaging coil, commonly called a low‐pass birdcage coil, and a cylindrical sample. Predicted and measured values of coil Q are shown to compare well throughout the resonance spectrum of an experimental coil–sample system. The analysis may be used to calculate feed‐point impedances and is easily extended to high‐pass coils.