Patent application number | Description | Published |
20090002090 | Integrated Non-Reciprocal Component Comprising a Ferrite Substrate - The invention relates to a non-reciprocal component ( | 01-01-2009 |
20090072922 | INTEGRATED NON-RECIPROCAL COMPONENT - The invention relates to a non-reciprocal component comprising a first dielectric part ( | 03-19-2009 |
20090161819 | SYSTEMS AND METHODS FOR SCANNING AND DATA ACQUISITION IN COMPUTED TOMOGRAPHY (CT) APPLICATIONS - Systems and methods for data acquisition in computed tomography (CT) applications are provided. The systems and methods are particularly adapted for scanning and acquiring/processing data in connection with high-power cone-beam CT applications. The electron beam is moved/scanned along the anode surface to multiple focal positions. Data acquisition for a full projection at one focus position and one view angle is achieved by activating each focus position multiple times during the data acquisition for one angle of the gantry. The detector array and associated data processing system are adapted to rapidly switch between the different focus positions during the acquisitions for one view angle and to collect all data belonging to the same projection into the same data set. Adaptive electron optics are utilized to move/scan the electron beam along the anode surface to the various focus positions. Alternatively, a plurality of cathodes may be provided for respective focus positions and the system may support fast switching therebetween to achieve desirably short spot times. The disclosed CT system permits greater power densities without risk of heat damage to the anode and effectively increases the track velocity of the electron beam on the anode surface. The CT system and associated data acquisition methods have particular utility in CT applications requiring increased time resolution and/or spatial resolution, e.g., cardiac CT applications. | 06-25-2009 |
20090275297 | NON-RECIPROCAL COMPONENT AND METHOD FOR MAKING AND USING THE COMPONENT IN A MOBILE TERMINAL - The invention relates to a non-reciprocal component comprising: a ferrite substrate having a first side and an opposing second side located on a ground layer, a first metal line and a second metal line are located on the ferrite substrate in parallel to each other. To provide a non-reciprocal component having small dimensions and which could be integrated. The ferrite substrate is magnetized parallel to the metal lines and each of the metal lines is running at least from one side of the ferrite substrate to the other side and back forming thereby at least one meander loop, wherein the loops are interlaced to each other and the metal lines are isolated in an area of the loop. | 11-05-2009 |
20090279659 | MULTI-TUBE IMAGING SYSTEM SCATTER CORRECTION - A computed tomography reconstruction method includes concurrently emitting radiation from at least two x-ray sources ( | 11-12-2009 |
20100008470 | X-RAY TUBE, X-RAY SYSTEM, AND METHOD FOR GENERATING X-RAYS - According to an exemplary embodiment an x-ray tube comprises a cathode, rotable disc anode, and a focal spot modulating unit, wherein the cathode is adapted to emit an electron beam, and wherein the focal spot modulating unit is adapted to modulate the electron beam in such a way that an intensity distribution of the electron beam on a focal spot on the anode is asymmetric such that the intensity of the electron beam on the focal spot is higher at the front of the focal spot with respect to the rotation direction. | 01-14-2010 |
20100038973 | METHOD TO DRIVE A HIGH-VOLTAGE TUBE GRID - A method and device for operating a device for high-voltage switching for driving capacitive loads, having a first and a second input terminal ( | 02-18-2010 |
20100040194 | SWEPT ANNODE CT SCANNER - A computed tomography method includes rotating an electron beam along an anode ( | 02-18-2010 |
20100067662 | SWITCHING SCHEME FOR A STEREO ROTATING ANODE TUBE - For x-ray tubes the focal spot temperature is a critical factor. According to an exemplary embodiment of the present invention, an examination apparatus is provided which has a synchronisation unit providing an operation mode for a stereo tube in which the anode rotation frequency is synchronised with the switching frequency such that the switching frequency is a half integer multiple of the anode rotation frequency. This may lead to a significant reduction of the focal spot temperature. | 03-18-2010 |
20100232571 | DUAL-COLOUR PYROMETRIC MEASUREMENT OF X-RAY FOCAL SPOT TEMPERATURE - An x-ray tube disclosed here in includes an emitter arranged to emit electrons on to a focal spot on a rotatable anode. The x-ray tube also includes a hollow tube arranged to receive electromagnetic radiation from the focal spot at one end of the hollow tube and transmit it to another end. The x-ray tube also includes two or more sensors arranged to detect the electromagnetic radiation through the hollow tube. | 09-16-2010 |
20100239063 | ROTATING ANODE X-RAY TUBE WIBH A SADDLE SHAPED ANODE - The rotating anode x-ray tube comprises an anode, whose focal track has the shape of a saddle trajectory. A proper anode angle to enable a high power line focus is always realised along the focal path on the anode. The x-ray tube is for CT scanners and enables a movement of the focal spot along the patient axis during gantry rotation. In this way, cone beam artefacts due to the reconstruction may be avoided. | 09-23-2010 |
20110051895 | X-RAY SYSTEM WITH EFFICIENT ANODE HEAT DISSIPATION - X-ray systems for use in high-resolution imaging applications with an improved power rating are provided. An X-ray source comprises at least one integrated actuator unit ( | 03-03-2011 |
20110188536 | DUAL-COLOR PYROMETRIC MEASUREMENT OF X-RAY FOCAL SPOT TEMPERATURE - An x-ray tube disclosed here in includes an emitter arranged to emit electrons on to a focal spot on a rotatable anode. The x-ray tube also includes a hollow tube arranged to receive electromagnetic radiation from the focal spot at one end of the hollow tube and transmit it to another end. The x-ray tube also includes two or more sensors arranged to detect the electromagnetic radiation through the hollow tube. | 08-04-2011 |
20110211676 | METHOD AND APPARATUS FOR APPLYING MATERIAL TO A SURFACE OF AN ANODE OF AN X-RAY SOURCE, ANODE AND X-RAY SOURCE - A method and an apparatus for locally applying material to the surface of an anode of an X-ray source as well as a corresponding anode is presented. Anode material such as a repair material for filling a recess ( | 09-01-2011 |
20130003928 | MULTIFRAME X-RAY DETECTOR FOR IMAGING SYSTEM WITH DISTRIBUTED X-RAY SOURCES - Device and method for synchronously switching activating a first and second charge accumulation section ( | 01-03-2013 |