Cryocooler vibration isolation and noise reduction in magnetic r

Details Cryocooler vibration isolation and noise reduction in magnetic r Cryocooler vibration isolation and noise reduction in magnetic r

1997-03-12

1999-01-26

Donovan, Lincoln

Electricity: magnetically operated switches, magnets, and electr

Magnets and electromagnets

Superconductive type

505892, 62 511, H01F 100

Patent

active

058642730

ABSTRACT:
Vibration and noise isolation for a magnetic resonance imager (MRI) superconducting magnet cryocooler includes a bellows between the cryocooler and its vacuum sleeve in the magnet, a mass suspended along the axis of, but at a distance from, the cryocooler, elastomeric blocks parallel to the axis, and braided copper wires connecting the vacuum sleeve and the heat shields of the MRI. Motion limiters and bellows flexures are provided for dynamic loads which might be encountered during transport of the magnet.

REFERENCES:
patent: 5129232 (1992-07-01), Minas et al.
patent: 5317879 (1994-06-01), Goldberg et al.
patent: 5522226 (1996-06-01), Mruzek
patent: 5613367 (1997-03-01), Chen

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