Cooling of a MRI system

摘要

A magnetic resonance imaging (MRI) system having an open superconducting magnet system ( 1 ) includes a number of horizontally oriented superconducting coils ( 3-10 ) in a cryogenic container ( 11 ). The cryogenic container contains a liquid cooling medium for cooling the superconducting coils which are located within the cryogenic container. At its top, the cryogenic container is provided with a recondensor ( 23 ) for continuously liquefying the cooling medium. The magnet system has a circuit for guiding the liquid cooling medium from the recondensor along at least part of the superconducting coils.