Patent application number | Description | Published |
20090184713 | Tomography System with Cooled Electrically Conductive Conduits - In a tomography system having a superconducting magnet and gradient coils, a cooling arrangement for cooling the gradient coils includes a cooling circuit which itself comprises an outward branch carrying cooling fluid to the gradient coils and a return branch carrying cooling fluid away from the gradient coils. At least part of each of the outward and return branches is formed of an electrically conductive conduit. The conduits provide electrical connections from a power supply to the superconducting magnet. In one embodiment, a first end of the bore of the first electrically conductive conduit is fluidly coupled to the bore of the outward branch; and a first end of the bore of the second electrically conductive conduit is fluidly coupled to the bore of the return branch. An electrically isolating bridging conduit is fluidly coupled between second ends of the first and second electrically conductive conduits. | 07-23-2009 |
20090184714 | HOUSING FOR A MAGNETIC RESONANCE IMAGING SCANNER AND A SCANNER - Pumping out of a vacuum vessel and housing of a scanner is facilitated by providing a hole through a radiation shield. To reduce radiation of heat via this hole to an inner coolant containing vessel a closure member is provided. This is held in spaced apart relationship during pump down by clips. The closure member is provided with a ferrous constituent or member which is then attracted inwards during initialization of the superconducting. This draws the closure member into engagement with the shield to close the hole and to prevent radiation thereby. The clips are profiled to maintain the abutment of the closure member over the hole. | 07-23-2009 |
20090188261 | Limiter for Limiting the Motion of Components in a Cryostat - A limiter is provided to limit the motion of components in a cryostat during transit. This permits the use of a support structure which minimises the disturbance to an insulating structure and thus reduces ingress of heat to the cryogen. Cryogen loss is reduced leading to lower operating costs. | 07-30-2009 |
20090193816 | Method and Apparatus for Controlling the Cooling Power of a Cryogenic Refrigerator Delivered to a Cryogen Vessel - The present invention provides a cryostat comprising a cryogen vessel ( | 08-06-2009 |
20100051307 | Cooled Current Leads For Cooled Equipment - A cooled current lead for conducting electrical current into a cooled vessel. The current lead comprises an electrical conductor ( | 03-04-2010 |
20110002111 | PROTECTION APPARATUS, METHOD OF LOCATING A SUPERCONDUCTIVE MAGNET UNIT AND SUPERCONDUCTIVE MAGNET UNIT APPARATUS - A protection apparatus for a superconductive magnet unit has a support frame for location relative to a portion of the superconductive magnet unit. The support frame is arranged to carry a buffer for protecting the superconductive magnet unit from a shock load. | 01-06-2011 |
20150276129 | CRYOSTAT AND METHOD FOR REDUCING HEAT INPUT INTO A CRYOSTAT - In a cryostat, in particular for use in a magnetic resonance imaging (MRI) system, and a method for reducing heat input into such a cryostat, an insert is provided that is adapted to be inserted into an opening of the cryostat. The insert is adapted to provide one or more passageways for a cryogen through the opening by defining at least one space between the outer surface of the insert and at least one part of the inner surface of the opening. This space allows the cryogen to pass over the part of the inner surface of the opening. | 10-01-2015 |
20160071638 | SUPERCONDUCTING MAGNET DEVICE INCLUDING A CRYOGENIC COOLING BATH AND COOLING PIPES - In a method for cooling a superconducting magnet device suitable for magnetic resonance imaging, and a cooling system, a small quantity of cryogen is used by cooling the magnet coils of the magnet device by a cooling pipe assembly, the cooling pipe assembly having one or more cooling pipes through which a cryogen flows. The one or more cooling pipes are in close thermal contact with the magnet coils. Liquid cryogen is filled into a cryogen vessel to provide a cryogenic temperature for at least parts of the magnet device for superconducting operation. The magnet coils are cooled during energizing of the magnet device by this cooling pipe assembly. | 03-10-2016 |
20160078987 | AN ASSEMBLY COMPRISING A TWO-STAGE CRYOGENIC REFRIGERATOR AND ASSOCIATED MOUNTING ARRANGEMENT - An assembly has a two-stage cryogenic refrigerator and an associated mounting arrangement, and a sock having first and second stages corresponding to first and second stages of the refrigerator, with the first stage of the refrigerator being in thermal contact with the first stage of the sock and the second stage of the refrigerator being in thermal contact with the second stage of the sock. | 03-17-2016 |