Thick film YBCO receive coils for very low field MRI

Superconducting receive coils can be used to improve the signal to noise ratio of a MRI system. The greatest improvement is seen in cases where it is the coil noise dominates the noise. This is the case for low field MRI where surface coils are used. The properties of large area (100 mm square) YBCO...

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Veröffentlicht in:	IEEE transactions on applied superconductivity 1999-06, Vol.9 (2), p.3070-3073
Hauptverfasser:	Penn, S.J., McN. Alford, N., Bracanovic, D., Esmail, A.A., Scott, V., Button, T.W.
Format:	Artikel
Sprache:	eng
Schlagworte:	Biological and medical sciences Coils Copper COPPER OXIDE Costs ELECTRIC COILS Electric fields Immune system Investigative techniques, diagnostic techniques (general aspects) Magnetic resonance imaging Medical sciences Miscellaneous. Technology NOISE Radiodiagnosis. Nmr imagery. Nmr spectrometry Signal to noise ratio Silver Superconducting coils Superconducting device noise Superconducting devices SUPERCONDUCTIVITY SUPERCONDUCTORS Surface resistance Surfaces Temperature Thick films YBCO superconductors Yttrium barium copper oxide Yttrium barium copper oxides YTTRIUM OXIDE
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Beschreibung
Zusammenfassung:	Superconducting receive coils can be used to improve the signal to noise ratio of a MRI system. The greatest improvement is seen in cases where it is the coil noise dominates the noise. This is the case for low field MRI where surface coils are used. The properties of large area (100 mm square) YBCO thick film coils designed for a compact very low field MRI system are reported. The properties are compared with copper and silver mimics.
ISSN:	1051-8223 1558-2515
DOI:	10.1109/77.783677