Birdcage type NMR receiver coil sensor with integrated detuning circuit for 3T MRI system

摘要

A novel birdcage type Radio Frequency (RF) receiver coil sensor with passive type detuning circuits integrated on the end-rings of the coil sensor has been implemented. A simulation model of the RF receiver coil sensor with the passive type detuning circuits has also been proposed. The simulation model completely explains the working principle of the RF receiver coil sensor with the passive type detuning circuits. The RF coil sensor was designed to perform the Nuclear Magnetic Resonance (NMR) imaging of small animal at 3T Magnetic Resonance Imaging (MRI) system. The integrated detuning circuits of the RF coil sensor eliminate the noises induced by the mutual inductance between receiving and transmitting coils. We have confirmed the performances of the RF coil sensor through experiments, which agreed well with those of the simulations.