Class 378/149 - Multiaperture

Subclass of Class 378 - X-ray or gamma ray systems or devices
Definition: Subject matter wherein the collimator is formed of a large
No. of patents: 226
Last issue date: 12/08/2009

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Number	Title	Issue Date
7630476	X-ray CT system and method of manufacturing an X-ray CT system An X-ray CT system according to the invention includes a holding plate which holds X-ray shield plates, a first support plate which supports one short-directional end portion of the holding plate, the first support plate conforming to a bend of the holding plate, a ...	12/08/2009
7627089	Method for producing a collimator The invention is related to a method for producing a collimator comprising an X-ray transparent substrate. The innovative method comprises the steps of: forming a slit in the substrate, wherein the slit has first and second side walls; filling the slit with an X-ray...	12/01/2009
7526070	X-ray CT apparatus collimator, method of manufacturing the X-ray CT apparatus collimator, and X-ray CT apparatus The angle of each collimator plate with respect to an X ray focal point is determined by fitting the collimator plate in grooves formed in upper and lower supports each having an integral structure. In addition, the warpage of each collimator plate is corrected and ...	04/28/2009
7496181	X-ray collimator for imaging with multiple sources and detectors Reduced source spacing for multi-source, multi-detector X-ray imaging systems is provided by allowing channels within an X-ray collimator to intersect within the body of the collimator. As a result, the channels are not independent, and the source spacing can be sig...	02/24/2009
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
7430280	Radiation emitting device A radiation emitting source includes a radiation emitter, an emitter switch, a collimator, a rotating mechanism and a shielding enclosure. The collimator has a central axial through-hole portion and a plurality of radial apertures. The through-hole portion receives ...	09/30/2008
7415098	Collimator for stray radiation, in particular for medical x-ray devices and method for producing said collimator A collimator is disclosed for stray radiation, in particular for medical X-ray devices. In addition, a method is disclosed for producing the collimator. The collimator includes numerous absorption elements for X-ray radiation which are separated from one another by ...	08/19/2008
7386098	Fine geometry X-ray collimator and construction method An X-ray collimator formed of stacked laminated layers with apertures therein aligned to form complex 3-dimensional collimator structures, and method of fabrication thereof, is presented. ...	06/10/2008
7386097	Analytical instrument with variable apertures for radiation beam An X-ray analysis device makes use of a variable aperture for controlling the position and cross section of the X-ray beam. The variable aperture is configured to allow changes in the cross section and/or position of the beam by movement of one aperture component in...	06/10/2008
7368151	Antiscattering grid and a method of manufacturing such a grid An antiscattering grid for an X-ray imaging apparatus of the type comprising a substrate having a plurality of metallized partitions that together define a plurality of cells distributed over the substrate. The partitions allow passage of the X-rays emitted from a s...	05/06/2008
7362849	2D collimator and detector system employing a 2D collimator A two dimensional (2D) collimator assembly and a detector system employing a 2D collimator assembly. More specifically, a collimator assembly is provided, having elements extending in the x and z-planes of a detector system. The 2D collimator assembly includes a num...	04/22/2008
7359488	Technique for digitally removing x-ray scatter in a radiograph Methods and apparatus for generating an x-ray image. An object is interposed between a detector and an x-ray source. A grid is interposed between the x-ray source and the object. The grid is exposed to primary x-ray energy generated by the x-ray source, thereby expo...	04/15/2008
7356125	Arrangement for collimating electromagnetic radiation The invention relates to an arrangement for collimating electromagnetic radiation, comprising a macrocollimator which has at least two cutouts, and microcollimator structures which are positioned in the cutouts of the macrocollimator and have lamellae that absorb el...	04/08/2008
7356126	Antiscattering grids with multiple aperture dimensions An antiscattering grid for a radiation imaging apparatus is disclosed. The antiscattering grid having a plurality of strips substantially absorbing X-rays and separated from each other by inter-strip spaces substantially transparent to the X-rays. The dimensions of ...	04/08/2008
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
7340029	X-ray computed tomography apparatus for fast image acquisition An x-ray computed tomography apparatus has a stationary device (3) for generating x-ray radiation from an x-ray focus that moves around the examination volume on a target that at least partially surrounds an examination volume of the apparatus in one plane. F...	03/04/2008
7336860	Microfluidic detection device having reduced dispersion and method for making same A microfluidic detection device provides reduced dispersion of axial concentration gradients in a flowing sample. The microfluidic detection device includes a cell body and a flow path through the cell body. The flow path has an inlet segment, an outlet segment, and...	02/26/2008
7336767	Back-scattered X-ray radiation attenuation method and apparatus A method for improving resolution of X-ray radiography systems of the type used to obtain images of internal features of human bodies or to view contents of luggage articles, cargo containers and the like comprises positioning a plurality of baffle plates between th...	02/26/2008
7333591	Method for the planning and delivery of radiation therapy A new optimization method for generating treatment plans for radiation oncology is described and claimed. This new method works for intensity modulated radiation therapy (IMRT), intensity modulated arc therapy (IMAT), and hybrid IMRT. ...	02/19/2008
7324690	Metal mask for light intensity determination and ADC calibration An apparatus and method for controlling gain characteristics in a CMOS imager and for calibrating light intensity and analog to digital conversion in a pixel array. A mask with varying sized apertures is provided over pixels of an array outside the active area for u...	01/29/2008
7321127	Optical reflector element, its method of fabrication, and an optical instrument implementing such elements The invention provides an optical reflector element (1) for a beam of X-rays (RX) or of gamma-rays or of high-energy particles at grazing incidence, the element being constituted by a stack of superposed silicon plates (10-12). Each p...	01/22/2008
7315610	X-ray device that emits an x-ray beam with a scanning-like movement In a method for operating an x-ray device, an x-ray beam is generated at a focal spot of a rotary anode that is rotatable around a rotation axis, and the x-ray beam is gated with a slit-shaped diaphragm to produce a fan-shaped x-ray beam, that is moved through an ex...	01/01/2008
7310411	Anti-scatter grids and collimator designs, and their motion, fabrication and assembly Grids and collimators, for use with electromagnetic energy emitting devices, include at least a metal layer that is formed, for example, by electroplating/electroforming or casting. The metal layer includes top and bottom surfaces, and a plurality of solid integrate...	12/18/2007
7286645	X-ray device that emits an x-ray beam with a scanning-like movement An x-ray device includes an x-ray tube for generation of an x-ray emanating from a focal spot of a rotary anode rotatable around a rotation axis and a slit-shaped diaphragm for generation of a fan-shaped x-ray beam that is gated from the x-ray and emission is moved ...	10/23/2007
7281850	Method and apparatus for aligning a fourth generation computed tomography system A method and apparatus for the alignment of a fourth generation Computed Tomography (CT) system is provided. The method includes receiving X-ray scan data from the CT system, and processing the received X-ray scan data to automatically generate alignment correction ...	10/16/2007
7283616	Collimator, in particular for a computed tomograph, and method for producing it A collimator is disclosed. The ends of collimator plates are potted with the aid of a top plate and a bottom plate with the formation of interspaces, defined by spacings, between the collimator plates. When producing such a collimator, the top and bottom plates are ...	10/16/2007
7274768	X-ray diffraction-based scanning system An x-ray diffraction-based scanning method and system are described. The method includes screening for a particular substance in a container at a transportation center using a flat panel detector having a photoconductor x-ray conversion layer to detect x-rays diffra...	09/25/2007
7257195	Collimator for a computer tomograph A collimator for a computer tomograph includes a number of collimator plates and a holder for the collimator plates. The collimator plates include, at the edge, a number of tabs spaced apart from one another. In a fashion corresponding to this, the holder has recept...	08/14/2007
7250607	Collimator A collimator suitable for the collimation of high energy gamma photons. ...	07/31/2007
7248672	Multiple-position x-ray tube for diffractometer An x-ray source provides both a line focus output and a point focus output, and is mounted on a rotatable support to allow easy changing between the two. A housing has ports at different angular positions relative to an anode, and each port has an associated optic a...	07/24/2007
7242749	Methods and systems for dynamic pitch helical scanning Methods and systems for controlling x-ray exposure during a dynamic pitch helical scan using a translatable table are provided. The system includes a collimator positioned between an x-ray source and an object to be scanned configured to shutter an x-ray fan beam ge...	07/10/2007
7236566	In-situ X-ray diffraction system using sources and detectors at fixed angular positions An x-ray diffraction technique for measuring a known characteristic of a sample of a material in an in-situ state. The technique includes using an x-ray source for emitting substantially divergent x-ray radiation—with a collimating optic disposed with respect to t...	06/26/2007
7236572	X-ray imaging apparatus with continuous, periodic movement of the radiation detector in the exposure plane An economical X-ray apparatus that allows a rapid exposure of comparatively large-format digital X-ray images has an exposure unit, with which a predetermined surface segment of an exposure plane can be exposed with X-ray radiation, and a digital X-ray detector that...	06/26/2007
7230246	System and method for providing slant-angle collimation for nuclear medical imaging Method and arrangement for implementing a system (10) for providing multi-angular SPECT radiation sampling utilizing slant-angle collimation. The system (10) includes a collimator (13) positioned between a radiating mass (19) within a pat...	06/12/2007
7231017	Lobster eye X-ray imaging system and method of fabrication thereof A Lobster Eye X-ray Imaging System based on a unique Lobster Eye (LE) structure, X-ray generator, scintillator-based detector and cooled CCD (or Intensified CCD) for real-time, safe, staring Compton backscatter X-ray detection of objects hidden under ground, in cont...	06/12/2007
7221737	Scattered radiation grid or collimator A scattered radiation grid for absorbing secondary radiation scattered by an object comprises a support, and a plurality of spaced-apart absorbing elements affixed to the support. The plurality of absorbing elements comprises relatively small tubes or pins affixed t...	05/22/2007
7209547	Apparatus for spatial modulation of an x-ray beam An apparatus for spatial modulation of an x-ray beam has a number of planar attenuation elements for x-ray radiation that are disposed in a grid on a carrier and can be pivoted or tilted by a piezoelectric actuator, independently of one another, between at least two...	04/24/2007
7208748	Programmable particle scatterer for radiation therapy beam formation Interposing a programmable path length of one or more materials into a particle beam modulates scattering angle and beam range in a predetermined manner to create a predetermined spread out Bragg peak at a predetermined range. Materials can be “low Z” and “hig...	04/24/2007
7194170	Elastic microchannel collimating arrays and method of fabrication A microchannel collimating array may be fabricated by casting an elastic sheet onto a substrate containing a plurality of pedestals. The elastic sheet may be cured, and then pulled away from the substrate, leaving the elastic sheet with a plurality of tubes at the l...	03/20/2007
7187750	Method and apparatus for compensating non-uniform detector collimator plates A method for obtaining data includes scanning an object with radiation to collect projection data using an imaging system having a detector array with detector cells and a post-patient collimator, wherein the post-patient collimator has plates having non-uniform thi...	03/06/2007

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Class 378/149 - Multiaperture