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| Number | Title | Issue Date |
| 4393512 | Hyper-filter-fluorescer spectrometer for x-rays above 120 keV An apparatus utilizing filter-fluorescer combinations is provided to measure short bursts of high fluence x-rays above 120 keV energy, where there are no practical absorption edges available for conventional filter-fluorescer techniques. The absorption ed... | 07/12/1983 |
| 4344181 | Method and apparatus for measuring the content or quantity of a given element by means of X-ray radiation A method and apparatus for measuring the content of an element by means of X-ray-radiation. Electrons from the cathode of a low-power X-ray tube are directed onto one side of the anode of said tube, said anode comprising a thin layer of anode material on ... | 08/10/1982 |
| 4317036 | Scanning X-ray microscope A scanning X-ray microscope including an X-ray source capable of emitting a beam of X-rays, a collimator positioned to receive the beam of X-rays and, to collimate this beam, a focusing cone means to focus the beam of X-rays, directed by the collimator, o... | 02/23/1982 |
| 4277685 | Adjustable collimator In a rotating fan beam tomographic scanner there is included an adjustable collimator and shutter assembly. The assembly includes a fan angle collimation cylinder having a plurality of different length slots through which the beam may pass for adjusting t... | 07/07/1981 |
| 4260895 | Radiation diagnostic apparatus for generating tomographic images In an exemplary embodiment, a radiation source emits a radiation beam for penetrating the layer to be examined from different directions. A radiation receiver supplies electric output signals corresponding to the transmitted radiation intensity. A compute... | 04/07/1981 |
| 4255664 | Split filter CT An improved computer assisted tomographic scanner is disclosed. The scanner includes a source of X-radiation and an array of detectors for determining X-ray intensity once that radiation has passed through a patient. The source emits a spread of radiation... | 03/10/1981 |
| 4246488 | Radiation collimator A compact and light weight radiographic collimator including two pairs of radiation absorbent shutters connected together by a parallelogram linkage which provides a nested arrangement when the shutters are in their full open position yet provides an alig... | 01/20/1981 |
| 4219734 | X-ray apparatus for transverse axial tomography An X-ray apparatus for transverse axial tomography by direct exposure of a photographic film. A localizer, constituted mainly by a lead-lined cylindrical tube, is fixed to a pivotal lever in the vicinity of the source of X-rays. It contains, in particular... | 08/26/1980 |
| 4189645 | X-ray measuring system A digital X-ray system for measuring X-ray beam quality such as the peak voltage applied to the X-ray tube and/or half value layer of the X-ray beam.... | 02/19/1980 |
| 4181858 | Adjustable compensating device for radiographic apparatus In computerized tomography (CT) apparatus it is usual to rotate a source of radiation about a body which, with associated support, is approximately circular in cross-section. Compensation, for unequal radiation paths through such a circular cross-section ... | 01/01/1980 |
| 4110581 | Device for monitoring the fitting in position of detachable elements in their support A device for detecting the absence or improper positioning of detachable elements in their supports comprises a system for monitoring the fitting in position of selected elements on a mounting plate provided at its periphery with slots, these slots being ... | 08/29/1978 |
| 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 |
| 3976889 | X-ray diagnostic apparatus An X-ray diagnostic apparatus for X-ray exposures, having preset X-ray tube voltage and current values, and a preset exposure time and, more particularly, to an apparatus of this type which includes a plurality of filters in conformance with an exposure p... | 08/24/1976 |
| 3974386 | Differential X-ray method and apparatus Differential X-ray images are produced in order to improve the visibility of a contrast medium, such as iodine or xenon, having a K absorption edge at a predetermined X-ray energy. Such differential images are produced by combining first, second and third... | 08/10/1976 |
| 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 |
