SUPERCONDUCTING DEVICE

PURPOSE:To have a structure where invasion of heat into a cryogenic part is suppressed by forming thermal anchors so that they are held almost in the horizontal positions with respect to the outside of inner cylinders which are divided into a plurality of parts. CONSTITUTION:Inner cylinders, the out...

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Bibliographic Details
Main Author SAEKI MITSURU
Format Patent
LanguageEnglish
Published 12.10.1988
Subjects
BASIC ELECTRIC ELEMENTS
DIAGNOSIS
ELECTRICITY
HUMAN NECESSITIES
HYGIENE
IDENTIFICATION
INDUCTANCES
MAGNETS
MEDICAL OR VETERINARY SCIENCE
SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
SURGERY
TRANSFORMERS
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Summary:PURPOSE:To have a structure where invasion of heat into a cryogenic part is suppressed by forming thermal anchors so that they are held almost in the horizontal positions with respect to the outside of inner cylinders which are divided into a plurality of parts. CONSTITUTION:Inner cylinders, the outside of which are connected to thermal ahchors 8 and 9, have three inner cylinders 7a, 7b, and 7c that are smaller than conventional ones. A power lead 11, a cryogenic refrigerant filling pipes 12, and a measuring lead 13 are arranged in respective inner cylinders 7a, 7b, and 7c. A gap formed between the inner cylinders and items arranged at their inner parts acts as a gas discharge part, that is, a gas helium discharge tube. Then, diameters D of the inner cylinders 7a, 7b, and 7c are smaller than conventional ones and once the thermal anchors 8 and 9 are formed so that they are held almost in the horizontal positions with respect to the inner cylinders, L becomes smaller than that of previous one. Then, a cryogenic refrigerant filling port 6 has almost the same axial length that it is obtained when the axial line is perpendicularly made up for the most part and this approach makes it possible to have an economical superconducting device where the amount of evaporation of the cryogenic refrigerant is little.
Bibliography:Application Number: JP19870076271