The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 10, 2012
Filed:
Oct. 04, 2010
Michael Westphal, Offenbach, DE;
Gerald Neuberth, Bruchsal, DE;
Michael Westphal, Offenbach, DE;
Gerald Neuberth, Bruchsal, DE;
Bruker BioSpin GmbH, Rheinstetten, DE;
Abstract
An actively shielded superconducting magnet configuration (M; M; M) for generating a homogeneous magnetic field Bin a volume under investigation () has a radially inner superconducting main field coil () which is disposed rotationally symmetrically about an axis (z axis) and a coaxial radially outer superconducting shielding coil () which is operated in an opposite direction. The magnet configuration consists of the main field coil, the shielding coil and a ferromagnetic field-shaping device (), wherein the ferromagnetic field-shaping device is disposed radially inside the main field coil. The main field coil consists of an unstructured solenoid coil or of several radially nested unstructured solenoid coils () which are operated in the same direction. An extension Lof the shielding coil in the axial direction is smaller than the extension Lof the main field coil in the axial direction. applies for the axial magnetic field profile B(z) generated by the main field coil and the shielding coil during operation along the z-axis in the center at z=0 and applies for the axial magnetic field profile B(z) generated by the ferromagnetic field-shaping device () during operation along the z-axis in the center at z=0, wherein the z-axis is oriented in a positive direction of the B-field. An actively shielded superconducting magnet configuration of considerably simplified structure is thereby provided with a homogeneous and particularly high magnetic field Bin the volume under investigation.