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| Number | Title | Issue Date |
| 7916840 | Radiation diaphragm apparatus and radiotherapy apparatus having the diaphragm apparatus A radiation diaphragm apparatus, which is adapted to form a radiation field, which is an exposed area of an object to be examined by radiation from a radiation source, comprises a plurality of diaphragm elements which are closely arranged in a first direction and mo... | 03/29/2011 |
| 7831024 | Slit-slat collimation This invention is directed to a collimator and collimation techniques. Specifically, the invention is directed to a collimator and method for collimation wherein the collimator combines the resolution and sensitivity properties of pinhole Single Photon Emission Comp... | 11/09/2010 |
| 7831023 | X-ray diaphragm A diaphragm system for an x-ray apparatus for scanning an object is provided. The diaphragm system includes a diaphragm support arranged within a radiation path of an x-ray beam. The diaphragm support includes at least two different individual diaphragms. The at lea... | 11/09/2010 |
| 7627090 | Configuration of a medical radiotherapeutic instrument A medical radiotherapeutic instrument comprising a ray source body, a switch and an end collimation body, a pre-collimation hole and a ray source cavity for placing ray source are defined on the ray source body; the switch is at least one pillar, each pillar is coup... | 12/01/2009 |
| 7577237 | X-ray imaging apparatus When a tabletop is rolling, an aperture specifying unit calculates an aperture of diaphragm blades such that a radiation field is to be R′ based on a rolling angle, where R′ is a radiation field having the same radiation area of X-rays after tabletop rolling as ... | 08/18/2009 |
| 7564950 | Multi-leaf collimator based field size clipping for automatic adaptation to allowed image area A system and method for capturing a portal image using a linear accelerator having a multi-leaf collimator (MLC) and an imager allows the portal image field to be automatically clipped using the multi-leaf collimator so that the projection of the portal image field ... | 07/21/2009 |
| 7519161 | System and method for normalization and calibration of an imaging system using a variable thickness filter A system and method for calibrating a radiation imaging system include a dual use variable thickness radiation filter having a slit in one part thereof such that in a first position a radiation beam passing through is not attenuated and in a second position the radi... | 04/14/2009 |
| 7489764 | Adjustable aperture collimator A collimator including an inner border whose inner perimeter defines an aperture, an outer border positioned outwards of the inner border, an enclosure being defined and bounded between the inner and outer borders, the enclosure being sufficiently filled with a radi... | 02/10/2009 |
| 7440539 | X-ray protection device A shielding arrangement for an x-ray apparatus, preferably for mammography examination is disclosed, and comprises at least an x-ray source, a collimator arrangement and a detector assembly, whereby the collimator is arranged between the x-ray source and the detecto... | 10/21/2008 |
| 7440550 | Collimator X-ray irradiator and X-ray apparatus A collimator is to be provided which permits the reduction of size without using any special material and without sacrificing an aperture. To this end, the collimator comprises: a pair of first plate members each having X-ray absorbability, movable in a direction pa... | 10/21/2008 |
| 7436933 | Method of manufacturing, and a collimator mandrel having variable attenuation characteristics for a CT system A method of manufacturing a collimator mandrel having variable attenuation characteristics is presented. The manufacturing process includes the placement of a layer of attenuating material on a core of base material. The layer of attenuating material is relatively t... | 10/14/2008 |
| 7436934 | Collimator with adjustable focal length A collimator is provided with an adjustable focal length, particularly in X-ray testing systems, comprising an outer part with a conical inner surface and with a inner part having an conical outer surface, which are connected to one another at a fixed distance, as w... | 10/14/2008 |
| 7434998 | X-ray CT scanner with graphical setting of beam thickness An X-ray CT scanner includes an X-ray tube which irradiates an object, a variable X-ray limiting device which limits the X-ray beam thickness, an X-ray detector which detects X rays transmitted through the object and has a plurality of detecting elements arrayed in ... | 10/14/2008 |
| 7409034 | Radiation tomography apparatus An apparatus for improving the tomographic image quality by preventing the tomographic image contrast from degrading and preventing artifact from occurring even if many scattered radiations occur. An X-ray detection array obtains first detection data using the X-ray... | 08/05/2008 |
| 7403597 | Radiation diaphragm in device having two diaphragms, and method for scanning a subject therewith in a diaphragm device for an x-ray apparatus for scanning a subject with a radiation beam and a scanning method using such a diaphragm device, the diaphragm device has at least two diaphragms. For at least one segment of the scan, the radiation beam that has been ad... | 07/22/2008 |
| 7397902 | Leaf, multi-leaf collimator, device for delimiting beams and irradiation device The invention relates to a leaf (1) for a multi-leaf collimator (2) for delimiting a high-energy beam (3, 3′, 3″) of an irradiation device, in particular for conformational radiation therapy. According to the invention, the multi-leaf collim... | 07/08/2008 |
| 7397901 | Multi-leaf collimator with leaves formed of different materials A multi-leaf collimator includes a number of independently adjustable leaves. Adjacent leaves overlap to prevent an incident beam of radiation from passing through a gap between them. The overlapping portions of the leaves are made of a first material, while the non... | 07/08/2008 |
| 7397900 | Micro beam collimator for high resolution XRD investigations with conventional diffractometers A micro collimator for compressing X-ray beams for use in a X-ray diffractometer is described, wherein said collimator has a channel means for providing a channel guiding said X-ray beams, said channel having a channel entrance portion and a channel exit portion. Th... | 07/08/2008 |
| 7372942 | Medical imaging system with dosimetry for estimating circuit board life A dosimeter is provided on or adjacent to a circuit board deployed in a radiation environment. The dosimeter may be read or output a value or values indicating radiation dosage over a period of time. The radiation dosage associated with the circuit board may be used... | 05/13/2008 |
| 7372936 | Radiation computed tomography apparatus and tomographic image data generating method A radiation computed tomography apparatus that includes a radiation detector having a plurality of radiation detector elements arranged in a two-dimensional manner for detecting radiation passing through a subject, and a reconstructing device for arithmetically reco... | 05/13/2008 |
| 7366279 | Scatter control system and method for computed tomography Various configurations for scatter reduction and control are provided for CT imaging. These configurations include an imaging system having a stationary detector extending generally around a portion of an imaging volume and a distributed X-ray source placed proximal... | 04/29/2008 |
| 7343003 | X-ray diaphragm, X-ray irradiator, and X-ray imaging apparatus An X-ray diaphragm including plural sets of X-ray absorbing plates, each of the plural sets including four of X-ray absorbing plates, the four X-ray absorbing plates in each of the plural sets being arranged such that two of the four plates and the other two are pos... | 03/11/2008 |
| 7340032 | System for dynamic low dose x-ray imaging and tomosynthesis A system for low dose x-ray imaging provides for dynamic generation of an x-ray beam with specific shape, and dynamic tracking of a detector with said beam. The detector is rotatable, and translatable along two orthogonal axes, and may mount with a circular detector... | 03/04/2008 |
| 7340033 | X-ray unit having an automatically adjustable collimator The invention relates to a method and a unit for automatically adjusting a collimator (6). In this connection, a region (9) of interest inside the body is determined in an application-specific way from an analysis of first X-ray pictures, and the colli... | 03/04/2008 |
| 7330534 | Ray beam guiding apparatus and ray inspection system having the same The present invention discloses a ray beam guiding apparatus, comprising a ray beam guiding box having substantially fan-shaped top and bottom surfaces, defining an inner space, and having open wide and narrow ends; an engaging member joined to the narrow end of the... | 02/12/2008 |
| 7317786 | Computed tomography apparatus and beam diaphragm therefor having absorber elements shaped to produce a non-uniform beam passage opening A gating device to delimit an x-ray beam, has a device housing, first and second absorber elements mounted in the device housing opposite each other, and an adjustment device for moving the absorber elements relative to each other to set a spacing therebetween formi... | 01/08/2008 |
| 7313217 | System and method of collecting imaging subject positioning information for x-ray flux control A system and method of diagnostic imaging is provided that includes positioning a subject in an imaging device, collecting positioning information of the subject from at least one sensor disposed in proximity of the imaging device, and determining a relative positio... | 12/25/2007 |
| 7310410 | Single-leaf X-ray collimator A single-leaf X-ray collimator comprises at least one collimating leaf member having at least one collimating aperture. The collimating leaf member is adapted to be configured to rotate about at least one of a vertical or horizontal plane. The collimator provides el... | 12/18/2007 |
| 7310407 | Nuclear medical imaging device An apparatus for imaging a field of view, according to an embodiment of the present invention, comprises an x-ray source positioned adjacent to the field of view, a source mask located between the x-ray source and the field of view having at least one source apertur... | 12/18/2007 |
| 7295648 | Method and apparatus for treatment by ionizing radiation A radiation therapy/surgery device optimised to meet the needs of the Neurosurgeon is provided, i.e. one for the treatment of tumours in the brain. It combines the qualities of a good penumbra and accuracy, simple prescription and operation, together with high relia... | 11/13/2007 |
| 7289596 | Radiation tomography apparatus and scan condition setting device The quality of an image can be improved and radiation can effectively be utilized. In an imaging area of a subject where a main scan is performed, a specific scan area setting unit sets a specific scan area where a scan is performed under a specific scan condition a... | 10/30/2007 |
| 7286636 | Flat panel detector based slot scanning configuration The present invention relates to a diagnostic X-ray device, system or apparatus for performing diagnostic radiology and a method of configuring such a diagnostic X-ray device, system or apparatus. More specifically, the present invention relates to a diagnostic syst... | 10/23/2007 |
| 7282727 | Electron beam directed energy device and methods of using same A method and apparatus is disclosed for an electron beam directed energy device. The device consists of an electron gun with one or more electron beams. The device includes one or more accelerating plates with holes aligned for beam passage. The plates may be flat o... | 10/16/2007 |
| 7272208 | System and method for an adaptive morphology x-ray beam in an x-ray system The present invention provides for an x-ray system and method using dynamic automated spatial modulation of an x-ray beam. The system includes an x-ray source transmitting a spatially modulated beam towards an object to be imaged, an x-ray detector receiving the bea... | 09/18/2007 |
| 7266180 | Method of manufacturing a collimator mandrel having variable attenuation characteristics for a CT system A method of manufacturing a collimator mandrel having variable attenuation characteristics is presented. The manufacturing process includes the placement of a layer of attenuating material on a core of base material. The layer of attenuating material is relatively t... | 09/04/2007 |
| 7263171 | Beam diaphragm and X-ray imaging apparatus With a view to providing a beam diaphragm having a large maximum value of aperture opening under a limited profile dimension, the beam diaphragm comprises a pair of control rings having coaxial apertures for the passage of X-rays therethrough and being opposed to ea... | 08/28/2007 |
| 7263169 | X-ray computed tomography apparatus with beam-gating diaphragm An x-ray computed tomography apparatus has an x-ray source that can be rotated around a system axis and a diaphragm that is disposed downstream from the x-ray source in the ray propagation direction for gating a fan-shaped ray beam that irradiates a subject. The dia... | 08/28/2007 |
| 7260171 | Apparatus for acquisition of CT data with penumbra attenuation calibration The present invention is a directed method and apparatus for collimating a radiation beam such that the full intensity of the radiation beam does not impinge detectors of a radiation detector assembly that are particularly susceptible to saturation or over-ranging. ... | 08/21/2007 |
| 7257196 | Radiotherapeutic apparatus A radiotherapeutic apparatus employs a collimator (52) set below a radiation source (50) and is adapted to move along an arc (54) substantially centered on the radiation source (50). As it sweeps the arc, the collimator (52) is adj... | 08/14/2007 |
| 7254216 | Methods and apparatus for filtering a radiation beam and CT imaging systems using same A filter assembly for a computed tomographic imaging system includes first and second endplates at opposite ends of the filter assembly. Also provided is a first moveable subassembly that includes at least a first x-ray filter and which is configured to move along a... | 08/07/2007 |
