Improvements in or relating to suspension systems

摘要

Described herein is an improved suspension system for cryostat vessels forming a part of magnetic resonance imaging (MRI) apparatus. The MRI apparatus comprises an outer cylindrical element, an inner cylindrical element mounted within the outer element, and a suspension system for accurately mounting the inner element with respect to the outer element. The suspension system comprises a plate (40) pivotally mounted on the inner cylindrical element (10) for rotation relative thereto and a pair of continuous bands (66, 68) connecting the plate (40) to the outer element. Adjusters are positioned offset from the axis of rotation of the plate for tensioning the bands. Locking means are also provided to retain the plate in a given position relative to the outer element.