SINGLE CRYSTAL PULLER, SUPERCONDUCTIVE MAGNET, AND METHOD FOR PULLING UP SINGLE CRYSTAL

PROBLEM TO BE SOLVED: To provide a superconductive magnet which can generate a highly uniform transverse magnetic field with a reduced magnetic field gradient within a bore, and an apparatus and method for pulling up a single crystal capable of pulling up the high-quality single crystal at a good yi...

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Bibliographische Detailangaben
Hauptverfasser:	SASAKI TAKASHI, SHIMONOSONO TSUTOMU, OGUCHI YOSHIHIRO
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUSPOLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE APPARATUS THEREFOR BASIC ELECTRIC ELEMENTS CHEMISTRY CRYSTAL GROWTH ELECTRICITY GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS INDUCTANCES MAGNETS METALLURGY PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITHDEFINED STRUCTURE REFINING BY ZONE-MELTING OF MATERIAL SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITHDEFINED STRUCTURE SINGLE-CRYSTAL-GROWTH TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION TECHNICAL SUBJECTS COVERED BY FORMER USPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ARTCOLLECTIONS [XRACs] AND DIGESTS TRANSFORMERS UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL ORUNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a superconductive magnet which can generate a highly uniform transverse magnetic field with a reduced magnetic field gradient within a bore, and an apparatus and method for pulling up a single crystal capable of pulling up the high-quality single crystal at a good yield by using the superconducting magnet. SOLUTION: The superconducting magnet built-in with superconducting coils 4 within a cooling vessel 19 of a cylindrical shape is arranged with the superconducting coils 4 on a plane within the cooling vessel. The respective superconducting coils arranged therein are set to directions where the foils face each other across the axial center of the cooling vessel and the disposition angles θ at which one pair each adjacent to each other of the superconducting coils face each other toward the inner side of the cooling vessel are set in a range from 100 to 130°. COPYRIGHT: (C)2004,JPO