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| Number | Title | Issue Date |
| 6529582 | Focused X-ray scatter reduction grid An X-ray scatter reduction grid includes a first layer having a plurality of cells. The cells have a perimeter formed of an X-ray absorbing material. The shape of the perimeters can vary, but a polygonal shape is preferred. The grid can also include other... | 03/04/2003 |
| 6526308 | Method and apparatus for calibration and quality assurance of nuclear medicine imaging A method for calibration and/or quality assurance of nuclear medicine imaging, in which functional information of the organs to be studied is achieved by inserting radioactive solution emitting detectable radiation in the organs of a phantom simulating th... | 02/25/2003 |
| 6518578 | Method for detecting ionizing radiation, a radiation detector and an apparatus for use in planar beam radiography A method for detecting ionizing radiation, a detector (64) for detection of ionizing radiation, and an apparatus for use in planar beam radiography, including the detector. The detector includes: a chamber filled with an ionizable gas; first and second el... | 02/11/2003 |
| 6504904 | Simplified alignment and increased efficiency of X-ray imaging apparatus setup The invention relates to a scanned-slot x-ray imaging system, having a first collimator and a second collimator arranged in a first distance (a) and a second distance (b), respectively, from a radiation source and each provided with a slot and a detector ... | 01/07/2003 |
| 6444993 | Apparatus for radiation analysis with a variable collimator In apparatus for radiation analysis, for example, X-ray spectrometers, the aperture angle of the analysing radiation beam 45 is often desired to vary during the measuring process. The aperture angle of the radiation beam is determined, for example, by the... | 09/03/2002 |
| 6438210 | Anti-scatter grid, method, and apparatus for forming same An anti-scatter grid for radiography includes a plurality of generally radiation absorbing elements and a plurality of generally non-radiation absorbing elements in which the generally non-radiation absorbing elements include a plurality of voids. Desirab... | 08/20/2002 |
| 6424697 | Directed energy beam welded CT detector collimators One embodiment of the present invention is a method for constructing a post-patient collimator for a computed tomographic (CT) imaging system, the method including steps of: edge welding collimator plates to a top rail using at least one directed energy b... | 07/23/2002 |
| 6408054 | Micromachined x-ray image contrast grids Image contrast grids include a body having openings and an x-ray absorbing material in the openings. The openings can be formed by various micromachining techniques and the x-ray absorbing material can be formed in the openings by various coating and depo... | 06/18/2002 |
| 6396902 | X-ray collimator A collimator having slits of varied widths, wherein each slit includes a curved side profile having a common axis of curvature for providing a cross-section of an emitted beam of energy with a substantially uniform width when the common axis of curvature ... | 05/28/2002 |
| 6392235 | Coded-aperture system for planar imaging of volumetric sources A coded aperture is placed in proximity of a patient's body and a 2D coded image is acquired in conventional manner. The basic data-acquisition geometry is similar to that used in various coded-aperture systems. According to one aspect of the invention, a... | 05/21/2002 |
| 6389108 | Moving collimator system A collimator system including a plurality of revolvable plates stacked one above another, the plates being constructed of a material substantially impervious to passage therethrough of radiation in a predetermined range of wavelengths, and at least one co... | 05/14/2002 |
| 6377661 | Radiation imager collimator A collimator 100 for use in a radiation imaging system 10, and a method for making such collimators, are provided, wherein the collimator 100 is capable of collimating radiation in two orthogonal planes. The collimator in one embodiment includes a block 1... | 04/23/2002 |
| 6370227 | Radiation imager collimator A collimator 100 for use in a radiation imaging system 10, and a method for making such collimators, are provided, wherein the collimator 100 is capable of collimating radiation in two orthogonal planes. The collimator in one embodiment includes a block 1... | 04/09/2002 |
| 6363136 | Grid for the absorption of X-rays In order to increase the ruggedness and the scattered radiation attenuation quality, a grid (3) with comb elements (12) which absorb electromagnetic radiation and are intended to form a grid is constructed, in such a manner that comb lamellae (11) extend ... | 03/26/2002 |
| 6353227 | Dynamic collimators Apparatus for collimating particle emanations, whether photons or material particles, comprises a collimator plate and a motion means. The collimator plate is made of an attenuating material capable of attenuating the particle emanations. The collimator h... | 03/05/2002 |
| 6339636 | Radiation image recording method and apparatus A radiation source and a radiation detector are located with an object intervening therebetween. A set of radiation blocking plates, each of which has at least one slit, are located between the radiation source and the radiation detector such that the obj... | 01/15/2002 |
| 6333962 | Non-destructive inspection apparatus and inspection system using it A non-destructive inspection apparatus has a radiation source, a radiation detector, a radiation source diver, a detector driver, a drive controller, a delay circuit, a radiation signal processing circuit, a memory, a computer, a display device, and an in... | 12/25/2001 |
| 6272206 | Rotatable cylinder dual beam modulator A dual beam modulator (10) includes a rotatable cylinder (12) having annular walls (14, 15) and a set of a plurality of discrete chordal passages (18) extending through the walls between opposing holes in the outer surface of cylinder walls (14, 15). Each... | 08/07/2001 |
| 6272207 | Method and apparatus for obtaining high-resolution digital X-ray and gamma ray images An apparatus and method for obtaining a high-resolution digital image of an object or objects irradiated with radiation having a wavelength in the x-ray or gamma ray spectrum generated by a radiation source, or of an object or objects emitting radiation w... | 08/07/2001 |
| 6266392 | Soller slit and manufacturing method of the same A soller slit is disclosed, which includes a plurality of metal foils and functions to restrict divergence of X-rays when arranged on an X-ray optical path. The metal foils are prepared by sintering a metal material such that surface thereof have high har... | 07/24/2001 |
| 6192104 | Fan and pencil beams from a common source for x-ray inspection A system and method for inspecting an object, where both a fan beam and a pencil beam of penetrating radiation are used to illuminating the object concurrently. Both beams may be derived from a single source of penetrating radiation. The pencil beam is no... | 02/20/2001 |
| 6185278 | Focused radiation collimator A focused radiation collimator for collimating radiation emitted from a radiation point source located at a substantially known focal distance from the collimator is disclosed. In one embodiment of the disclosed collimator, the collimator is formed by at ... | 02/06/2001 |
| 6175615 | Radiation imager collimator A collimator 100 for use in a radiation imaging system 10, and a method for making such collimators, are provided, wherein the collimator 100 is capable of collimating radiation in two orthogonal planes. The collimator in one embodiment includes a block 1... | 01/16/2001 |
| 6157703 | Beam hardening filter for x-ray source An x-ray beam hardening filter is disclosed. The x-ray beam hardening filter comprises a support member and a beam hardening sheet, the beam hardening sheet having a multidimensional array of regularly spaced apertures. The apertures are configured to hav... | 12/05/2000 |
| 6123078 | Radionuclide angiographic collimator system A gamma ray collimator for use in a cardiac inspections system is disclosed which resolves energetically unperturbed gamma rays emitted from a patient and removes inelastic scattered gamma rays. A plurality of collimator elements each have walls, with eac... | 09/26/2000 |
| 6075840 | Air cross grids for X-ray imaging Air cross grids, for absorbing scattered secondary radiation and improving radiation imaging in general radiography and in mammography, are provided with a large plurality of open air passages extending through each grid panel. These passages are defined ... | 06/13/2000 |
| 6061426 | X-ray examination apparatus including an x-ray filter An X-ray examination apparatus includes an X-ray source (1) for emitting X-rays. An object to be radiologically examined is arranged in an examination space. An X-ray detector (2) derives an image signal, for example an electronic video signal, from an X-... | 05/09/2000 |
| 6054708 | Neutron beam control method and its apparatus The methods and apparatuses for the control of neutron beams are herewith presented. Through the application of the methods and apparatuses presented one can manipulate various characteristics of neutron beams such as shape, velocity, density, polarizatio... | 04/25/2000 |
| 6031893 | Stray radiation grid A stray radiation grid, particularly for a medical X-ray apparatus, is composed of a carrier material with absorption elements, particularly in the form of lead lamellae, that are arranged in rows spaced from one another and proceeding essentially paralle... | 02/29/2000 |
| 5991357 | Integrated radiation detecting and collimating assembly for X-ray tomography system An integrated radiation detecting and collimating assembly for an x-ray tomography scanning system. The assembly includes a housing which mounts to a spine of the system and aligns corresponding arrays of photodiodes, scintillator crystals and anti-scatte... | 11/23/1999 |
| 5933473 | Non-destructive inspection apparatus and inspection system using it A non-destructive inspection apparatus has a radiation source, a radiation detector, a radiation source diver, a detector driver, a drive controller, a delay circuit, a radiation signal processing circuit, a memory, a computer, a display device, and an in... | 08/03/1999 |
| 5869841 | 3-dimensional imaging system using crystal diffraction lenses A device for imaging a plurality of sources of x-ray and gamma-ray radiation is provided. Diffracting crystals are used for focussing the radiation and directing the radiation to a detector which is used for analyzing their addition to collect data as to ... | 02/09/1999 |
| 5847398 | Gamma-ray imaging with sub-pixel resolution A gamma ray imaging system for providing high resolution images includes a collimator plate with an array of multiple holes which image a gamma emitting object onto a semiconductor gamma detector pixel array coupled to a signal processor. The collimator h... | 12/08/1998 |
| 5802137 | X-ray optics, especially for phase contrast imaging An x-ray or neutron optic configuration includes a plurality of single crystal portions (25) formed with respective spaced x-ray or neutron reflection faces (21,22,23) formed at predetermined asymmetry angles to a Bragg diffraction plane in the respective... | 09/01/1998 |
| 5799057 | Collimator and detector for computed tomography systems The present invention, in one form, is a scatter collimator for a computed tomography system including an x-ray source. The scatter collimator is positioned between a detector array and an object to be imaged. The scatter collimator includes a housing, a ... | 08/25/1998 |
| 5744813 | Method and device for controlling beams of neutral and charged particles The present invention provides for bending the beams, their focusing, transforming a divergent radiation into a quasi-parallel one, and vice versa, its filtering and monochromatization. Also attained are reduced radiation transfer losses, extended range o... | 04/28/1998 |
| 5727044 | Microchannel plates A tapered, spherically slumped, microchannel plate.... | 03/10/1998 |
| 5684851 | Imaging method and apparatus using penetrating radiation to obtain an object projection An imaging system spatially modulates penetrating radiation that passes through an object under investigation. The modulation introduces spatial irregularities which can be deflected while passing through the object under investigation. The deflection of ... | 11/04/1997 |
| 5666395 | X-ray diagnostic apparatus It is an object of the invention to provide an X-ray diagnosis apparatus having an X-ray plane detector capable of removing the influence of a scattered X-ray by using a grid and also preventing a Moire image. An X-ray image transmitted through a target o... | 09/09/1997 |
| 5644615 | X-ray collinator having plates with periodic rectangular openings An X-ray collimator in an X-ray analysis apparatus, consisting of plates of X-ray absorbing material, for example tungsten, which are arranged transversely of the X-ray beam. The plates are identical and provided with a pattern of rows and columns of rect... | 07/01/1997 |
