A technique for double resonant operation of birdcage imaging coils.

@article{Joseph1989ATF,
  title={A technique for double resonant operation of birdcage imaging coils.},
  author={Peter Mwita Joseph and Deyi Lu},
  journal={IEEE transactions on medical imaging},
  year={1989},
  volume={8 3},
  pages={286-94}
}
The type of radio-frequency (RF) coil known as a high-pass birdcage consists of a set of N; wires arranged axially on the surface of a cylinder and connected by capacitors at each end. Such coils are widely used for NMR imaging because of the high degree of field homogeneity they provide. It is shown how to create homogeneous fields at two frequencies, using an unequal distribution of capacitance. A theoretical analysis which uses the discrete Fourier transform of the currents with respect to… CONTINUE READING

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