Measurements of the radiofrequency field in magnetic resonance coils
- 1 September 1998
- journal article
- design note
- Published by IOP Publishing in Measurement Science and Technology
- Vol. 9 (9) , 1641-1646
- https://doi.org/10.1088/0957-0233/9/9/040
Abstract
This design note describes an inexpensive system used to control the radiofrequency field generated by magnetic resonance coils. The device is built around three main modules, a sequencer, a modulator and a phase-sensitive detector. This system permits one to detect the radiofrequency field at each point of the region of interest using a pick-up coil, without the requirement of a magnetic resonance spectrometer. Examples of radiofrequency field distributions obtained at 85 MHz are given.Keywords
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