A Cylindrical superconducting magnet

A cylindrical superconducting magnet comprising a plurality of axially-aligned superconducting coils 12a-f and a ferromagnetic (e.g. iron) shield 11. The ferromagnetic shield comprises a cylindrical outer surface (5b, figure 2) concentric with the coils and two end surfaces (5a and 5c, figure 2), 10...

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Bibliographic Details
Main Author Marcel Jan Marie Kruip
Format Patent
LanguageEnglish
Published 21.06.2017
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRICITY
INDUCTANCES
MAGNETS
MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
PHYSICS
SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
TESTING
TRANSFORMERS
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Summary:A cylindrical superconducting magnet comprising a plurality of axially-aligned superconducting coils 12a-f and a ferromagnetic (e.g. iron) shield 11. The ferromagnetic shield comprises a cylindrical outer surface (5b, figure 2) concentric with the coils and two end surfaces (5a and 5c, figure 2), 10 each end surface including a hole, concentric with the coils. A cryogenic refrigerator 8 may be mounted on the surface of the ferromagnetic shield 11. The system may include a bore tube (7, figure 2) sealed to the ferromagnetic shield 11 and enclosing an evacuated volume (a vacuum). Radiation therapy equipment, such as a linear accelerator (LINAC) 13, a deflection unit 14, a multi-leaf 15, a beam focussing arrangement 16 or a collimator 17, may be disposed on the outer surface of the shield 11. The purpose of the invention is to restrain stray fields generated by superconducting magnets 12a-f.
Bibliography:Application Number: GB20150022122