Abstract #1783
Transmit volume coil-receive surface coil for proton operating at 14 Tesla
Masoumeh Dehghani M. 1 , Arthur Magill W. 2 , Yves Pilloud 1 , Nicolas Kunz 2 , and Rolf Gruetter 1,2
1
Laboratory for Functional and Metabolic
Imaging, Ecole Polytechnique Fdrale de Lausanne,
Lausanne, Vaud, Switzerland,
2
Centre
dImagerie Biomdicale, Ecole Polytechnique Fdrale de
Lausanne, Lausanne, Vaud, Switzerland
The design and operation of a transmit birdcage coil
combined with a surface receive loop for small animal
imaging and spectroscopy at 600MHz (1H at 14.1T) is
presented. The transmit coil is a 16-rung high pass
birdcage driven in quadrature and detuned during
reception by PIN diodes placed between every rung on one
end ring. The receive loop is tuned using a varactor
diode, eliminating the need for variable capacitors and
detuning PIN diodes on the loop, saving considerable
space in the probe design. This system provides
homogeneous excitation and high sensitivity for
functional, anatomic, and other MRI/S studies.
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