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| Number | Title | Issue Date |
| 4958081 | Focusing collimator and method for making it A focusing collimator has a plurality of corrugated strips which are built up in a stack. Within each stacking plane of interest, each strip is shaped in cross-section as a part of a different radial sector of a common predetermined annulus.... | 09/18/1990 |
| 4916723 | Method for slit radiography In a method for slit radiography a fan-shaped X-ray beam scans a body to form an X-ray shadow image. The fan-shaped beam is formed by a number of sectors situated next to each other. For each sector the transmitted X-ray radiation is controlled instantane... | 04/10/1990 |
| 4910759 | Xray lens and collimator A lens and collimator apparatus for focusing and increasing the intensity of an x-ray beam at a specimen point. A screen with an aperture of pupil diameter comparable and no larger than the x-ray transverse coherence length and no smaller that the specime... | 03/20/1990 |
| 4890312 | Piezoelectric attenuation tongue system for slit radiography equipment A piezo-electric attenuation tongue system for slit radiography equipment comprises a number of tongues placed next to each other. The tongue system is manufactured by slitting a plate of piezoelectric material from one of the edges but leaving unslit a s... | 12/26/1989 |
| 4866744 | Scattering beam eliminating device for x-ray CT apparatus A scattering beam eliminating member is located between an X-ray tube and an X-ray gas detector such that it is intimately bonded to the window of the X-ray detector. The scattering beam eliminating member is of such a type that plates and X-ray transmiss... | 09/12/1989 |
| 4856043 | Two piece ceramic Soller slit collimator for X-ray collimation A Soller slit and method of producing a Soller slit by forming a plurality of grooves in two identical ceramic blocks. The two blocks are then bound together with parallel blades of each block facing each other. The ceramic blocks can contain lead titanat... | 08/08/1989 |
| 4827491 | Radiosurgical collimator knife Apparatus for treatment by radiation of an intracranial portion disposed at a predetermined region, comprises a linear accelerator for supplying a source of energetic electrons, and a collimator disposed adjacent the predetermined region for supplying an ... | 05/02/1989 |
| 4809312 | Method and apparatus for producing tomographic images Method and apparatus for the production of tomographic images includes a flying spot scanner to form, from a beam of penetrating radiation, a pencil beam sweeping over a line in space to define a sweep plane. An object to be examined is supported so that ... | 02/28/1989 |
| 4788699 | Dental x-ray diagnostics installation for producing panorama tomograms of the jaw of a patient A dental X-ray diagnostic installation for producing panoramic tomograms of the jaw of a patient is provided with a multiple diaphragm part having a plurality of different diaphragm apertures which can be adjusted to be positioned into a beam path from th... | 11/29/1988 |
| 4778997 | Process and device for depicting the distribution of high activities of radioactive substances Process for depicting the distribution of high activities of radioactive substances by means of a whole-body scintigraphic device having a camera or the like, such as a gamma camera or scanner, characterized in that the radiation incident upon the camera ... | 10/18/1988 |
| 4750196 | Device for examining a body by means of gamma rays or X-rays The invention relates to a device for examining a body by means of gamma rays or X-rays, in which a body to be examined is irradiated by a plurality of primary beams having a comparatively small cross-section. The scattered radiation produced is intercept... | 06/07/1988 |
| 4718076 | X-ray imaging apparatus An X-ray imaging apparatus comprising an X-ray generator having a cylindrical rotating target, a slit plate having a slit extending in a direction perpendicular to the direction in which an X-ray focal point moves on the target, the slit plate and rotatin... | 01/05/1988 |
| 4672648 | Apparatus and method for radiation attenuation An off-focal radiation collimator is disclosed which includes a plurality of radiation absorbing elements supported in spaced relationship with respect to one another in a housing such that each element is aligned along radii extending from the focal spot... | 06/09/1987 |
| 4659935 | Bilateral collimator for rotational camera transaxial SPECT imaging of small body organs A bilateral collimator for rotational camera transaxial SPECT imaging of small body organs produces two different simultaneous views of a body organ to be imaged. The views are produced by groups of passageways which do not intersect each other.... | 04/21/1987 |
| 4651012 | High brilliance lensless projection system of test patterns A projection system derived from certain solid geometrical properties using two aperture plates bearing arrays of holes with well defined spacing projects radiation from diverse sources such as electromagnetic radiation, visible and invisible light radiat... | 03/17/1987 |
| 4638499 | High resolution collimator system for X-ray detector High resolution in an X-ray computerized tomography (CT) inspection system is achieved by using a collimator/detector combination to limit the beam width of the X-ray beam incident on a detector element to the desired resolution width. In a detector such ... | 01/20/1987 |
| 4597096 | Multitube collimator for for instance scintillation camera A multitube collimator for a camera, especially a scintillation camera, whose sensitivity and resolving power may be varied by changing the length, slope, dimension or shape of the tubes (10). This is achieved by that the grid at least at two opposed limi... | 06/24/1986 |
| 4595014 | Imaging probe and method The disclosure is directed to an apparatus and method for imaging radiation pattern from within a body. In accordance with the preferred method of the invention, there is provided a technique for imaging internal structure of a body which includes the fol... | 06/17/1986 |
| 4578585 | Detector head mounting mechanism A first pinhole and an associated first pin and also a second pinhole and an associated second pin are mounted between a detector head and a detector head supporting structure such that the first pinhole and the first pin are concentric with a first axis ... | 03/25/1986 |
| 4577107 | Detector head mounting apparatus A mechanism is provided for mounting a detector head including a collimator onto supporting structure of a radiation detector for rotation about a selected one of a plurality of trunnion axes, the selection being made so that rotation occurs about the tru... | 03/18/1986 |
| 4560876 | Detector head mounting apparatus A mechanism is provided for mounting a detector head including a collimator onto supporting structure of a radiation detector for rotation about a selected one of a plurality of trunnion axes, the selection being made so that rotation occurs about the tru... | 12/24/1985 |
| 4532646 | X-ray focal spot locating apparatus and method An X-ray beam finder for locating a focal spot of an X-ray tube includes a mass of X-ray opaque material having first and second axially-aligned, parallel-opposed faces connected by a plurality of substantially identical parallel holes perpendicular to th... | 07/30/1985 |
| 4506374 | Hybrid collimator A hybrid collimator for tomographic imaging with a scintillation camera comprising a coded aperture plate and a parallel plate collimator. The code plate includes a plurality of lateral slits each of which is radiopaque or radiotransparent pursuant to a t... | 03/19/1985 |
| 4465540 | Method of manufacture of laminate radiation collimator A collimator (21, 38, 38A) transmits intercepted X rays or the like along an array of predetermined spaced apart paths (22, 22A), which may be parallel or convergent, while absorbing intercepted radiation which is traveling in other directions. A laminate... | 08/14/1984 |
| 4466113 | X-Ray examination device having a high local resolution In an X-ray examination device which comprises an X-ray source for irradiating a body and a detector device, a displaceable diaphragm device defines an angle of aperture which is substantially smaller, due to the selection of the dimension of the aperture... | 08/14/1984 |
| 4450706 | Method and apparatus for forming collimator strips The apparatus forms a profilated collimator strip out of a band of deformable material. It contains a first and a second forming tool, both of which contain a row of forming teeth. The teeth may be hexagonal to form corresponding deformations having sidew... | 05/29/1984 |
| 4446570 | Collimator for a radiation detector and method of making same A collimator for an Anger-type scintillation camera is disclosed in which a plurality of spaced pins of radiation transmitting material located within an internal cavity of a collimator housing serve as radiation transmitting channels and mercury filling ... | 05/01/1984 |
| 4438335 | Detector head mounting apparatus A mechanism is provided for mounting a detector head including a collimator onto supporting structure of a radiation detector for rotation about a selected one of a plurality of trunnion axes, the selection being made so that rotation occurs about the tru... | 03/20/1984 |
| 4435828 | Fluorescence laser EXAFS Apparatus (10) for obtaining fluorescence laser EXAFS (Extended X-ray Absorption Fine Structure). A lens (12) directs a pulse of radiant energy (13) onto a metal target (15) to produce X-rays (16). A baffle (17) directs the X-rays (16) onto a spectral-dis... | 03/06/1984 |
| 4433427 | Method and apparatus for examining a body by means of penetrating radiation such as X-rays An image-reconstructive technique for examining a body by means of penetrating radiation, such as X-rays, is described in which a pre-body collimator having a two-dimensional array of radiation-transmitting holes each bordered by radiation non-transmittin... | 02/21/1984 |
| 4419585 | Variable angle slant hole collimator A variable angle radiation collimator particularly for use in gamma-photon medical diagnostic systems in a gamma-photon camera system for radiological examination of human subjects. The collimator provides collimation of gamma-photon radiation along a sin... | 12/06/1983 |
| 4419763 | Variable slanted channel collimator A collimator is disclosed which has a stack of radiation opaque plates that is tilted to vary the angle of view of the scintillation crystal of a radiation detector with respect to a radiation source. The plates have hexagonal apertures that are aligned w... | 12/06/1983 |
| 4404471 | Lenticular x-ray film with improved grating mask and intensifying screen Lenticular x-ray film having a parallax grating mask near the lenticulations of the film and a high resolution intensifying screen near the emulsion side of the film. The film, the mask and the screen form a unit for placement in a cassette for use with a... | 09/13/1983 |
| 4389729 | High resolution digital radiography system A digital radiography system includes an X-ray source for projecting a beam of X-rays toward and through an object to be examined onto the input face of an image intensifier tube. A multi-hole collimator is disposed between the object and the image intens... | 06/21/1983 |
| 4321473 | Focusing radiation collimator Visual display of dental, medical or other radiographic images is realized with an X-ray tube in which an electron beam is scanned through an X-Y raster pattern on a broad anode plate, the scanning being synchronized with the X-Y sweep signals of a cathod... | 03/23/1982 |
| 4292525 | Diagnostic radiology apparatus for producing layer images of an examination subject In an exemplary embodiment, a measuring arrangement comprises a radiation source emitting a radiation beam which penetrates the body layer to be examined, and a radiation receiver which supplies electrical output signals corresponding to the radiation int... | 09/29/1981 |
| 4288697 | Laminate radiation collimator A collimator (21, 38, 38A) transmits intercepted X rays or the like along an array of predetermined spaced apart paths (22, 22A), which may be parallel or convergent, while absorbing intercepted radiation which is traveling in other directions. A laminate... | 09/08/1981 |
| 4277684 | X-Ray collimator, particularly for use in computerized axial tomography apparatus An X-ray collimator for use in computerized axial tomography apparatus includes a plurality of substantially parallel X-ray absorbing laminae disposed in the plane of a wedge-shaped X-ray beam. The length and position of each lamina with respect to a dive... | 07/07/1981 |
| 4271362 | Method and apparatus for detecting a distant object using gamma radiation A radiation energy transmission system including source collimating apparatus and its method of construction for maintaining the intensity of a radiation signal emanating from a radiation source along a narrow signal beam path to provide for long distance... | 06/02/1981 |
| 4250425 | Rotating anode X-ray tube for tomodensitometers A hollow, cylindrical, rotating anode, X-ray tube for tomodensitometers. This tube contains a bell-shaped, hollow, cylindrical anode functioning by transmission, which is swept on its inner surface by an electron beam and produces in cooperation with a collima... | 02/10/1981 |
