Ringing Down Time Measurement of a Receive Coil for NMR Tomography
نویسندگان
چکیده
The paper describes studies dealing with problems of the receive coil for NMR scanner connected via a preamplifier with high input impedance. Behaviour of the coil with preamplifier after pulses of RF signal was studied and an equation was derived and verified for investigation of it. The theory is demonstrated on a one-turn surface coil with rather large dimensions. Some parameters of a coil are measureable with difficulties and the derived theory can help to determine them more accurately. The technique of the high–impedance preamplifiers is seldom in experimental systems, though it can simplify their adjustment.
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تاریخ انتشار 2015