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1. WO2020109894 - LIGHTWEIGHT ASYMMETRIC MAGNET ARRAYS

Publication Number WO/2020/109894
Publication Date 04.06.2020
International Application No. PCT/IB2019/059644
International Filing Date 10.11.2019
IPC
G01R 33/383 2006.01
GPHYSICS
01MEASURING; TESTING
RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
33Arrangements or instruments for measuring magnetic variables
20involving magnetic resonance
28Details of apparatus provided for in groups G01R33/44-G01R33/6496
38Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field
383using permanent magnets
H01F 7/02 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
7Magnets
02Permanent magnets
CPC
G01R 33/3802
GPHYSICS
01MEASURING; TESTING
RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
33Arrangements or instruments for measuring magnetic variables
20involving magnetic resonance
28Details of apparatus provided for in groups G01R33/44 - G01R33/64
38Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field
3802Manufacture or installation of magnet assemblies; Additional hardware for transportation or installation of the magnet assembly or for providing mechanical support to components of the magnet assembly
G01R 33/383
GPHYSICS
01MEASURING; TESTING
RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
33Arrangements or instruments for measuring magnetic variables
20involving magnetic resonance
28Details of apparatus provided for in groups G01R33/44 - G01R33/64
38Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field
383using permanent magnets
H01F 7/0278
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
7Magnets
02Permanent magnets ; [PM]
0273Magnetic circuits with PM for magnetic field generation
0278for generating uniform fields, focusing, deflecting electrically charged particles
Applicants
  • EPSITAU LTD. [IL]/[IL]
Inventors
  • HAHAM HAY, Noam
Agents
  • KLIGLER & ASSOCIATES PATENT ATTORNEYS LTD.
Priority Data
62/772,63829.11.2018US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) LIGHTWEIGHT ASYMMETRIC MAGNET ARRAYS
(FR) RÉSEAUX D'AIMANTS ASYMÉTRIQUES LÉGERS
Abstract
(EN)
A magnet array (100) includes multiple magnet rings (111-114, 121-124) and a frame. The multiple magnet rings are positioned along a longitudinal axis and are coaxial with the longitudinal axis. At least one of the magnet rings encircles a predefined inner volume (130). A minimal inner radius of the magnet rings positioned on one side of a center of the inner volume along the longitudinal axis is different from the minimal radius of the magnet rings positioned on the other side of the center of inner volume. The magnet rings are configured to jointly generate a magnetic field of at least a given level of uniformity inside the inner volume. The frame is configured to fixedly hold the multiple magnet rings in place.
(FR)
Cette invention concerne un réseau d'aimants (100), comprenant de multiples anneaux magnétiques (111-114, 121-124) et un cadre. Les multiples anneaux magnétiques sont positionnés le long d'un axe longitudinal et sont coaxiaux avec l'axe longitudinal. Au moins l'un des anneaux magnétiques encercle un volume interne prédéfini (130). Un rayon interne minimal des anneaux magnétiques positionnés sur un premier côté d'un centre du volume interne le long de l'axe longitudinal est différent du rayon minimal des anneaux magnétiques positionnés sur l'autre côté du centre du volume interne. Les anneaux magnétiques sont configurés pour générer conjointement un champ magnétique d'au moins un niveau d'uniformité donné à l'intérieur du volume interne. Le cadre est configuré pour retenir fixement en place les multiples anneaux magnétiques.
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