NMR imaging system with conical permanent magnet

Details NMR imaging system with conical permanent magnet NMR imaging system with conical permanent magnet

2005-10-11

2005-10-11

Shrivastav, Brij (Department: 2859)

Electricity: measuring and testing

Particle precession resonance

Spectrometer components

Reexamination Certificate

active

06954070

ABSTRACT:
An open magnetic structure comprising a conical magnetic structure including a hollow conical magnet surrounding and contacting an inner pole piece that generates an NMR imaging field around the head of a patient. The annular surface of contact between the conical magnetic structure and the inner pole piece is configured such that that annular surface of contact is maintained as an equipotential surface to maintain a uniform imaging field. An advantage is to integrate as one-piece the various permanent magnetic sections to greatly simplify fabrication. A method for determining the profile of the annular surface of contact is also included.

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patent: 2003/0164704 (2003-09-01), Yoshida

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