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| Number | Title | Issue Date |
| 4035647 | Radiography Apparatus is disclosed for producing a representation of the absorption coefficient, with respect to X- or γ- radiation, at a plurality of locations distributed over a planar section of a body under examination. The radiation is directed towards the body... | 07/12/1977 |
| 4035651 | Radiography device with circuitry to correct for photodetector sensitivity In an apparatus for examining a body by means of penetrating radiation a source is arranged to direct a swath of radiation through the body and a plurality of detectors are arranged to receive it thereafter. The source and detectors are arranged to orbit ... | 07/12/1977 |
| 4031396 | X-ray detector An ionization chamber for use in determining the spatial distribution of x-ray photons in tomography systems comprises a plurality of substantially parallel, planar anodes separated by parallel, planar cathodes and enclosed in a gas of high atomic weight ... | 06/21/1977 |
| 4031395 | Radiography In a radiographic apparatus a source of radiation is arranged to scan a planar spread of radiation in a plane about the body of a patient being examined. A plurality of detector devices is arranged to provide data representing the absorption of the radiat... | 06/21/1977 |
| 4029963 | X-ray spectral decomposition imaging system Projection measurements are made of the transmitted x-ray beam in low and high energy regions. These are combined in a non-linear processor to produce atomic-number-dependent and density-dependent projection information. This information is used to provid... | 06/14/1977 |
| 4015129 | Position indicating control method and apparatus in radiation scanning systems A system and method are disclosed for sensing and controlling the operation of a transaxial reconstruction tomographic apparatus having a movable radiation source for directing radiation through a subject and a radiation detector movable synchronously wit... | 03/29/1977 |
| 4010370 | Computerized tomography apparatus with means to periodically displace radiation source Radiographic apparatus is described for evaluating the absorption coefficient of a body at each of a plurality of locations distributed over a planar slice disposed cross-sectionally of the body. A source is arranged to produce a fan-shaped, planar beam o... | 03/01/1977 |
| 4002917 | Sources of X-radiation Radiological apparatus is described for producing a representation of the variation of absorption coefficient with position over at least one planar slice taken cross-sectionally through a body under examination. The source of radiation comprises an X-ray... | 01/11/1977 |
| 4002911 | Data acquisition in tomography Apparatus is so constructed as to employ a sampling beam of radiation of a form which at least approximates to a sinusoidal distribution of intensity between the extremities of its skirts, and is such that the range of sinusoidal variation has an extent o... | 01/11/1977 |
| 3996467 | Data acquisition in tomography In an apparatus for examining a body with penetrating radiation a source and detector arrangement scan about the body to irradiate the body along a plurality of beam paths lying in a plane. Output signals are provided from weighted components where each c... | 12/07/1976 |
| 3991312 | Ionization chamber An improved ionization chamber type x-ray detector comprises an array of substantially parallel, flat metal plate electrodes separated and supported by sheets of a glass fiber reinforced silicone dielectric. The silicone-glass fiber dielectric substantial... | 11/09/1976 |
| 3973128 | Tomography For examining a body by means of X-rays or other penetrating radiation, data is determined representing the absorption suffered by each of a plurality of beams which are passed through the body. The beams are effectively arranged in a plurality of sets of... | 08/03/1976 |
| 3965358 | Cross-sectional imaging system using a polychromatic x-ray source The transmitted polychromatic x-ray beam in a cross-sectional x-ray imaging system is applied to pulse-height discriminators for energy spectral analysis. Various regions of the energy spectrum are separately counted in order to provide an accurate recons... | 06/22/1976 |
| 3956633 | Radiology method and apparatus In a radiological apparatus, arranged to produce a representation of the variation of absorption of penetrating radiation over a planar, cross-sectional slice of a body under examination, the radiation emergent from the body along a plurality of paths in ... | 05/11/1976 |
| 3944833 | Apparatus for examining a body by radiation such as X or gamma radiation Apparatus for examining a body by means of radiation such as X or γ radiation includes a source of a substantially planar, sectoral-shaped swath of said radiation, collimator means having a plurality of apertures formed therein through which respective f... | 03/16/1976 |
| 3940626 | Detection of radiation in radiographic apparatus The invention provides apparatus for examining bodies by means of penetrating radiation such as X- or γ- radiation. The radiation is directed toward the body in a sectoral-shaped swath and the radiation emergent from the body is collected by detector dev... | 02/24/1976 |
| 3937965 | Radiography apparatus A novel apparatus for radiographic examination purposes comprises an x-ray source emitting a flat beam. Detectors are arranged in the plane of the beam in order each to pick up part of the beam. To avoid the Compton effect, each detector is associated wit... | 02/10/1976 |
| 3934142 | Radiography Radiographic apparatus is described in which a thin planar slice of the body is examined by a swath of penetrating radiation such as X-rays. Collimators are provided for collimating the radiation after it has passed through the body into a set of beams wh... | 01/20/1976 |
