Magnetic field generating assembly

Details Magnetic field generating assembly Magnetic field generating assembly

2007-03-20

2007-03-20

Doerrler, William C. (Department: 3744)

Refrigeration

Gas compression, heat regeneration and expansion, e.g.,...

C062S051100

Reexamination Certificate

active

10960280

ABSTRACT:
A magnetic field generating assembly comprises a superconducting magnet located in a cryostat defining a bore accessible from outside the cryostat, and a mechanical refrigerator having at least two cooling stages for at least partly cooling the cryostat. A coolant path extends from the refrigerator into the magnet bore. The coolant path is coupled for heat exchange with a cooling stage of the refrigerator other than the coldest cooling stage, so that the refrigerator is adapted also to cool coolant in the coolant path.

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patent: WO 03/023433 (2003-03-01), None
P.S. Thompson et al., “A Two-Stage Pulse Tube Cryo-Cooled MRI Magnet”, AIP Conference Proceedings AIP USA, No. 613A, 2002, pp. 649-653, XP008036029.

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