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Your search keyword '"Hayden, M.E."' showing total 2 results
Start Over Author "Hayden, M.E." Publisher academic press inc.
2 results on '"Hayden, M.E."'

1. An improved shielded RF transmit coil for low-frequency NMR and MRI.

Author

Kuzmin, V.V., Bidinosti, C.P., Hayden, M.E., and Nacher, P.-J.

Subjects
*NUCLEAR magnetic resonance, *MAGNETIC resonance imaging, *RADIO frequency, *LOW temperatures, *MAGNETIC shielding
Abstract

We describe an actively shielded cylindrical RF transmit coil producing a highly uniform internal field ( ± 0.5%) over an extended volume and a strongly suppressed ( ÷ 20) external field. Direct field mapping and experimental checks using in-situ NMR and MRI of polarised 3 He at low temperature demonstrate performance consistent with numerical field computations. [ABSTRACT FROM AUTHOR]

Published
2015
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2. Active shielding of cylindrical saddle-shaped coils: Application to wire-wound RF coils for very low field NMR and MRI

Author

Bidinosti, C.P., Kravchuk, I.S., and Hayden, M.E.

Subjects
*NUCLEAR magnetic resonance, *MEDICAL imaging systems, *MAGNETIC resonance imaging, *RADIO frequency
Abstract

Abstract: We provide an exact expression for the magnetic field produced by cylindrical saddle-shaped coils and their ideal shield currents in the low-frequency limit. The stream function associated with the shield surface current is also determined. The results of the analysis are useful for the design of actively shielded radio-frequency (RF) coils. Examples pertinent to very low field nuclear magnetic resonance (NMR) and magnetic resonance imaging (MRI) are presented and discussed. [Copyright &y& Elsevier]

Published
2005
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