RF front end for a 4.1 tesla clinical NMR spectrometer

J. T. Vaughan, D. N. Haupt, P. J. Noa, G. M. Pohost

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

1 Scopus citations

Abstract

The radio-frequency (RF) front-end can operate at power levels, bandwidths, and circuit length unique in the NMR field. New technology has been developed for these components to optimize the performance of the NMR spectrometer. For broader spectral bandwidths and to compensate for chemical shift dispersion error, two 15kW solid state amplifiers have been developed for implementation on a 'home-built' 4.1 Tesla clinical system. A stripline transformed, nonmagnetic, tuned GaAsFET preamp has been built for achieving high gain and low noise at the RF coil. A nonmagnetic dual quadrature hybrid -PIN diode T/R switch was developed to isolate the RF power amplifier from the receiver. New high frequency coils have made use of tuned cavities and transmission lines.

Original languageEnglish (US)
Title of host publicationIEEE Nuclear Science Symposium & Medical Imaging Conference
Editors Anon
PublisherIEEE
Pages1524-1528
Number of pages5
Volume4
StatePublished - Jan 1 1995
EventProceedings of the 1994 Nuclear Science Symposium and Medical Imaging Conference. Part 1 (of 4) - Norfolk, VA, USA
Duration: Oct 30 1994Nov 5 1994

Other

OtherProceedings of the 1994 Nuclear Science Symposium and Medical Imaging Conference. Part 1 (of 4)
CityNorfolk, VA, USA
Period10/30/9411/5/94

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    Vaughan, J. T., Haupt, D. N., Noa, P. J., & Pohost, G. M. (1995). RF front end for a 4.1 tesla clinical NMR spectrometer. In Anon (Ed.), IEEE Nuclear Science Symposium & Medical Imaging Conference (Vol. 4, pp. 1524-1528). IEEE.