LEAD AND THERMAL DISCONNECT FOR RAMPING OF AN MRI OR OTHER SUPERCONDUCTING MAGNET

LEAD AND THERMAL DISCONNECT FOR RAMPING OF AN MRI OR OTHER SUPERCONDUCTING MAGNET

A superconducting magnet (10) includes a cryogenic container (22, 32) containing a superconducting magnet winding (20). A sealed electrical feedthrough (36) passes through the cryogenic container. A contactor (40) inside the cryogenic container has an actuator (42) and feedthrough-side and magnet-si...

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Hauptverfasser: PFLEIDERER, GLEN GEORGE, URBAHN, JOHN, MENTEUR, PHILIPPE ABEL, VOSS, MATTHEW
Format: Patent
Sprache:eng
Schlagworte:
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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creator PFLEIDERER, GLEN GEORGE
URBAHN, JOHN
MENTEUR, PHILIPPE ABEL
VOSS, MATTHEW
description A superconducting magnet (10) includes a cryogenic container (22, 32) containing a superconducting magnet winding (20). A sealed electrical feedthrough (36) passes through the cryogenic container. A contactor (40) inside the cryogenic container has an actuator (42) and feedthrough-side and magnet-side electrical terminals (46, 47). A high temperature superconductor (HTS) lead (60) also disposed in the cryogenic container has a first end (62) electrically connected with the magnet-side electrical terminal of the contactor and a second end (64) electrically connected to the superconducting magnet winding. A first stage thermal station (52) thermally connected with the first end of the HTS lead has a temperature (T1) lower than the critical temperature (TC,HTS) of the HTS lead. A second stage thermal station (54) thermally connected with the second end of the HTS lead has a temperature (T2) lower than a critical temperature (TC) of the superconducting magnet winding (20).
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subjects BASIC ELECTRIC ELEMENTS
ELECTRICITY
INDUCTANCES
MAGNETS
MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
PHYSICS
SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
TESTING
TRANSFORMERS
title LEAD AND THERMAL DISCONNECT FOR RAMPING OF AN MRI OR OTHER SUPERCONDUCTING MAGNET
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