Patent ID: 6806713
Filing Date: 2004-10-19
Classification: G01R

Abstract:
An NMR probe for use with a polarizing magnetic field B0, comprising:a resonator having a cylindrical axis R, said axis R inclined at an angle &thgr; to B0, said resonator sustaining a plurality of RF magnetic fields each comprising a distinct phase and direction, said resonator comprising an RF coil comprising two mutually isolated ports for maintaining two quadrature modes of said coil in operation, said modes each resonant at &ohgr;1. an RF source for exciting an RF magnetic field B1, said field B1 elliptically polarized in a plane orthogonal to said cylindrical axis R such that the projection of said elliptically polarized field onto a plane orthogonal to B0 is circularly polarized, and a sample retainer for holding an elongate sample along said cylindrical axis.