Q optimization of RF inductors for use in NMR probes.
Radiofrequency inductors are important components of many NMR probe circuits, and a high quality factor Q of these inductors is necessary to achieve good signal-to-noise ratios. We have designed high Q inductors using an optimum coil diameter to coil length ratio of the order of 2.54. The latter was calculated from Lorenz's inductance formula for a solenoid and checked experimentally using a series of inductors of various diameters and lengths. The results show good agreement between theory and practice.
Kan
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Institut d'Electronique Fondamentale, CNRS URA 22, Université de Paris XI, Orsay, France.
Gonord
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D006801:Humans; D009682:Magnetic Resonance Spectroscopy / Q000295:instrumentation*; D011846:Radio Waves