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Magnetically induced surface charges on samples in magnetic resonance imaging radio-frequency coils: effect on electric fields, sample losses, and coil resonance.

Medical physics

Harpen MD.
PMID: 2385193
Med Phys. 1990 May-Jun;17(3):362-8. doi: 10.1118/1.596516.

We present a solution to Maxwell's equations which describe the inductive interaction between an irregularly shaped sample in a magnetic resonance imaging rf coil. It is demonstrated that the inductive interaction between the coil and sample can induce charge...

A new approach to split resonator design.

Magnetic resonance in medicine

Harpen MD.
PMID: 1569874
Magn Reson Med. 1992 Apr;24(2):364-9. doi: 10.1002/mrm.1910240217.

Using a novel application of the method of images we show how a plane array of resonant elements can be substituted for the conducting plane in a semicylindrical or split resonator. In an experimental low-pass split resonator-plane array system...

Analysis of the interaction between an MRI coil and a heterogeneous sample.

Physics in medicine and biology

Harpen MD.
PMID: 2006212
Phys Med Biol. 1991 Jan;36(1):133-41. doi: 10.1088/0031-9155/36/1/012.

A theoretical analysis of the interaction between a magnetic resonance imaging radio frequency coil and a heterogeneous sample consisting of two conducting regions separated by a non-conducting membrane is presented. The effect of the capacitive coupling between the two...

Showing 1 to 3 of 3 entries