SUPERCONDUCTIVE MAGNET APPARATUS

PROBLEM TO BE SOLVED: To reduce a consumption amount of liquid helium and cool an object to be cooled for long time even if a freezer stops in a structure where the freezer can easily be attached and detached in a superconductive magnet system. SOLUTION: The superconductive magnet apparatus 50 is pr...

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Bibliographic Details
Main Authors NEMOTO TAKEO, CHIBA TOMOO
Format Patent
LanguageEnglish
Published 02.08.2007
Subjects
BASIC ELECTRIC ELEMENTS
DIAGNOSIS
ELECTRICITY
HUMAN NECESSITIES
HYGIENE
IDENTIFICATION
INDUCTANCES
MAGNETS
MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
MEDICAL OR VETERINARY SCIENCE
PHYSICS
SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
SURGERY
TESTING
TRANSFORMERS
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Summary:PROBLEM TO BE SOLVED: To reduce a consumption amount of liquid helium and cool an object to be cooled for long time even if a freezer stops in a structure where the freezer can easily be attached and detached in a superconductive magnet system. SOLUTION: The superconductive magnet apparatus 50 is provided with the multiple step freezer having a low temperature container 1 storing a superconductive coil 3 and helium 2, a thermal shield 12, a vacuum container 14, a freezer port 40, and a first stage 5 and a second stage 6 which are attachably/detachably installed in the freezer port 40 and which are cooling parts. A first heat transmission member 10 of a high heat conductor constituting a part of the freezer port 40 is thermally connected to the thermal shield 12. A second heat transmission member 9 of the high heat conductor installed by thermally connecting it to the first stage 5 is thermally connected to the first heat transmission member 10 so as to attachably/detachably bond them. Helium gas 2b evaporated when the freezer 4 stops is made to pass through the freezer port 40, is thermally exchanged with the first heat transmission member 10 or the second heat transmission member 9 and is discharged outside the vacuum container 14. COPYRIGHT: (C)2007,JPO&INPIT
Bibliography:Application Number: JP20060008617