Abstract: The present embodiments provide a gradient coil assembly. The gradient coil assembly includes an aluminum wire body, and a copper wire end connected by cold pressure welding to two ends of the aluminum wire body. Using the gradient coil according to a particular embodiment, it is possible to reduce gradient coil weight as well as reduce the thickness of an outer vacuum chamber used for a magnet, thereby reducing the cost of the magnet and gradient coil, and making it less difficult to install and maintain the magnet and gradient coil. There is no problem of oxidation associated with the cold pressure welding of the aluminum wire body to the copper wire ends, so quality defects arising from such oxidation are avoided.

Abstract: A supply line apparatus for an electrical connection of a gradient coil unit in a magnetic resonance device includes a first supply line unit and a second supply line unit. The second supply unit is disposed at least partially coaxially to the first supply line unit. The first supply line unit and/or the second supply line unit has at least one conducting supply line element. The supply line apparatus includes an oscillation decoupling unit that has at least one oscillation-suppressing supply line element.

Abstract: A combined tomography scanner is disclosed, having at least two imaging modalities. In at least one embodiment, the scanner includes a first tomography modality having an essentially annular or tubular measurement area opening formed by an inner perimeter; an annular or cylindrical PET component as a second tomography modality having an outer perimeter, which allows insertion into the measurement area opening, and having an inner opening which forms a patient tunnel; and at least one insulation mat which can be inserted into an annular gap between the inner perimeter of the first modality and the outer perimeter of the PET component.

Abstract: A shim coil arrangement for a magnetic resonance tomography system includes one or more spacers.

Abstract: A method for producing at least one saddle coil for a gradient coil layer for a magnetic resonance tomography system is provided. At least one half cylinder-shaped, premolded saddle coil is arranged between an inner shell and an outer shell of a casting apparatus. The shells of the casting apparatus are closed, and the space between the shells is filled with a casting compound.

Abstract: In one embodiment, an electromagnetic shielding of a device is disclosed for a magnetic resonance system. The device is shielded via a conductive layer which surrounds an inner part of the device in such a manner that an electrical current path completely around the inner part can be formed in the layer. The layer is arranged between a housing of the device, surrounding the inner part, and the inner part. In another embodiment, an electromagnetic shielding of a device is disclosed for a magnetic resonance system, wherein the device is shielded via a conductive layer which surrounds the device in such a manner that an electrical current path completely around the device is formed. In this situation, the device having the layer is mounted by way of projections on the magnetic resonance system. Each projection has a contact surface with the layer, at which the respective projection contacts the layer.

Abstract: In a magnetic resonance device having a PET unit for acquiring positron emission tomography data and a gradient coil, the PET unit includes a carrier tube on which at least one PET detector is arranged. In at least one embodiment, the carrier tube is arranged inside the gradient coil and is displaceably mounted in such a way that access to the PET detector is made possible by its displacement. This allows easy access to the PET detector during maintenance activities.

Abstract: A cooling unit operating in a magnetic field is provided. The cooling unit includes an encasement body having a non-electrically conductive composition and defining a first and second opposing planar surface. The cooling unit also includes a metal conduit disposed in the encasement body substantially parallel to the first surface. Additionally, the cooling unit also includes a series of metal fins disposed in the encasement body and extending from the conduit. In some configurations the fins can be substantially parallel to the first surface. Further, in some configurations, non-electrically conductive inserts having a thermal conductivity greater than a thermal conductivity of the encasement body can be disposed in a portion of the encasement body between one of the first and second surfaces and one or more of the metals fins.

Abstract: A magnetic resonance tomography device includes at least three coil layers. The at least three coil layers are each operable to generate a gradient magnetic field in one of three directions. One cooling layer is arranged between a first and a second of the at least three coil layers. Another cooling layer is arranged between the second and a third of the at least three coil layers.

Abstract: A securing part and an unscrewing safeguard system of a gradient coil plug for an MRT that can be fixed to a gradient coil bushing include a gradient coil plug, a gradient coil bushing, a cap nut with a keyed surface and, to secure the gradient coil plug to the gradient coil bushing, a multi-tooth ring fixed to the plug so that the ring cannot rotate, and a securing part with a multi-tooth ring engagement contour that can be brought into engagement with the multi-tooth ring, and with a keyed surface engagement contour that can be brought into mating with the keyed surface of the ring.

Abstract: A medical imaging apparatus includes a first imaging modality which is formed by a magnetic resonance apparatus and which comprises a cylindrical gradient coil unit, and a further imaging modality which comprises a detector unit. The detector unit of the further imaging modality is supported in a radial direction within an area surrounded by the gradient coil unit and an annular gap is disposed between the detector unit of the further imaging modality and the gradient coil unit. The further imaging modality includes a pressure unit which is disposed in the annular gap between the detector unit of the further imaging modality and the gradient coil unit.

Abstract: A supply line apparatus for an electrical connection of a gradient coil unit in a magnetic resonance device includes a first supply line unit and a second supply line unit. The second supply unit is disposed at least partially coaxially to the first supply line unit. The first supply line unit and/or the second supply line unit has at least one conducting supply line element. The supply line apparatus includes an oscillation decoupling unit that has at least one oscillation-suppressing supply line element.

Abstract: The present embodiments relate to a magnetic resonance tomography system having a basic-field field generation device for generating a basic magnetic field. The magnetic resonance tomography system also includes a gradient-field field generation device for generating a gradient field, where the basic-field field generation device and the gradient-field field generation device are arranged in an evacuatable low-pressure housing.

Abstract: In a method to ensure the removability and/or the mobility of at least one element cast in a casting compound for a module of a medical apparatus, wherein the element is coated with a meltable substance before the casting, the meltable substance is melted by heating after the casting in order to remove and/or to produce the mobility of the element.

Abstract: A cooling unit operating in a magnetic field is provided. The cooling unit includes an encasement body having a non-electrically conductive composition and defining a first and second opposing planar surface. The cooling unit also includes a metal conduit disposed in the encasement body substantially parallel to the first surface. Additionally, the cooling unit also includes a series of metal fins disposed in the encasement body and extending from the conduit. In some configurations the fins can be substantially parallel to the first surface. Further, in some configurations, non-electrically conductive inserts having a thermal conductivity greater than a thermal conductivity of the encasement body can be disposed in a portion of the encasement body between one of the first and second surfaces and one or more of the metals fins.

Abstract: A detector arrangement with a plurality of detector units is disclosed, to each of which a data processing unit is assigned. An embodiment of the detector arrangement includes a cooling system with cooling units which are thermoconductively connected to the detector units and data processing units for cooling. The cooling units are connected to a distribution unit by which a coolant may be supplied to the cooling units in parallel.

Abstract: A gradient coil of a magnetic resonance apparatus has a first conductor structure and a second conductor structure connected with one another so that windings of the gradient coil are formed. The first conductor structure is formed exclusively of planar, electrically conductive elements that are insulated from one another. The second conductor structure is formed exclusively of conductive wires insulated from one another.

Abstract: A stay-tight mechanism for a plug to be fixed with a union nut to a socket is provided. The mechanism has a first securing part having a flat engagement contour which engages with a flat of the union nut and having at least one recess. The mechanism has a second securing part having at least one recess and having an engagement contour which engages with an element on the connector when the first securing part is connected to the second securing part.

Abstract: A facility is disclosed for cooling a detection device. In at least one embodiment, the facility includes at least one first cooling unit, through which a thermal contact to the detection device is able to be established and through which heat arising during operation of the detection device is able to be removed; and at least one second cooling unit, which is arranged so that heat from the environment of the detection device can be discharged through it. In at least one embodiment, this has the advantage of largely shielding the first cooling unit from incident heat which allows the detection device to be efficiently cooled.

Abstract: A medical image recording device includes a device for magnetic resonance imaging including a cylindrical gradient coil with coil conductors arranged on multiple radial levels; and a device for PET imaging including multiple PET detectors arranged in a cylindrical arrangement in the interior of the gradient coil. In at least one embodiment, at least one cooling device is provided between the coil conductor lying on the innermost radial level and the PET detectors arranged in annular form on at least one radial level.