title: An improved shielded RF transmit coil for low-frequency NMR and MRI.
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.
authors.affiliation: Laboratoire Kastler Brossel, ENS-PSL Research University, CNRS, UPMC-Sorbonne Universités, Collège de France, 24 rue Lhomond, F-75005 Paris, France.
authors.forename: V V
authors.initials: VV
authors.lastname: Kuzmin
authors.affiliation: Department of Physics, University of Winnipeg, Winnipeg, MB R3B 2E9, Canada.
authors.forename: C P
authors.initials: CP
authors.lastname: Bidinosti
authors.affiliation: Department of Physics, Simon Fraser University, Burnaby, BC V5A 1S6, Canada.
authors.forename: M E
authors.initials: ME
authors.lastname: Hayden
authors.affiliation: Laboratoire Kastler Brossel, ENS-PSL Research University, CNRS, UPMC-Sorbonne Universités, Collège de France, 24 rue Lhomond, F-75005 Paris, France. Electronic address: nacher@lkb.ens.fr.
authors.forename: P-J
authors.initials: PJ
authors.lastname: Nacher
keywords: MRI; NMR; RF coils