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WO/1997/044809A1 |
The envelope comprises a window made of material transparent to the radiation emitted by the source that comprises at least one chamber (20, 22, 23) in which can be moved a material impervious to the electromagnetic radiation, the chambe...
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WO/1997/042646A1 |
An x-ray tube having novel components and geometry to optimize the resolution of fan beam and flying-spot transmission images by varying the size of the focal region and by compensating the tube current in response to the degree of beam ...
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WO/1997/013267A2 |
The disclosure pertains to an X-ray source in the form of an X-ray tube with a metal anode and intended in particular for use in X-ray fluorescence analysis. The anode metal is a mixture of several metals.
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WO/1997/007740A1 |
A catheter for emitting radiation is disclosed, comprising a catheter shaft (104), and an x-ray unit (102) attached to the distal end of the catheter shaft. The x-ray unit comprises an anode (112), and a cathode (110) coupled to an insul...
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WO/1997/006553A1 |
A method and system for extending the service life of an x-ray tube (14) wherein the coolant fluid which is circulated through a closed circulation system to remove heat generated by the x-ray tube and provide electrical insulation betwe...
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WO/1996/034404A1 |
A stationary target anode (10) of an X-ray device is provided, having stepped high Z button (20). By minimizing the diameter (27) of the central, X-ray producing section of the button (20), and incorporating a thin lip (40) extending the...
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WO/1996/029723A1 |
In a microfocus X-ray device for producing short-exposure X-ray images to be enlarged, a focused electron beam used for producing the X-radiation (16) strikes the braking material of a target (23). This causes the braking material to cha...
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WO/1996/025024A1 |
The x-ray source of the present invention comprises a charged particle beam generator (112) and a vacuum enclosure assembly (176). The charges particle beam generator includes only a single electrical connection (803) for providing high ...
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WO/1996/021235A1 |
A method of manufacturing a radiotransparent window. In order to achieve suitable radiation transmission, notably for long-wave X-rays, the window is made of a material containing exclusively light elements such as carbon and hydrogen. T...
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WO/1996/018477A1 |
A method for the vacuumtight sealing of a thin (between 25 'mu'm and 150 'mu'm) beryllium X-ray window (14) to a metal substrate (42). The seal is realised by pressing an annular preform (46) of pure (99.99 %) aluminium of round cross se...
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WO/1996/005600A1 |
A portable x-ray source that produces a sufficient x-ray flux (x) to produce high quality x-ray images on x-ray films. The source includes a vacuum chamber (20) filled with a heavy atomic weight gas at low pressure and an x-ray emitter (...
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WO/1996/002059A1 |
The present invention is directed to an x-ray source (10) for irradiating a surface defining a body cavity. The source comprises a housing (12), an elongated tubular probe (14), a target assembly (26), and an inflatable balloon (410). Th...
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WO/1995/032833A1 |
A rotation frictional welding method joins a tapered wedge (30) at one end (33) of a shaft (26) within a tapered aperture (32) in the plane of a disk (28). This method produces an overhung disk shaft assembly (24) with a shaft (26) havin...
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WO/1995/028731A1 |
An improved high performance X-ray system (20) having a rotating anode (56, 61, 58) therein which includes an improved coating (96) for the X-ray tube rotor. The surface (92) of the X-ray tube rotor is coated with a coating (96) wherein ...
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WO/1995/026565A1 |
An X-ray tube of high brightness and high resolution, which can be operated continuously for many hours, that is, capable of withstanding a high thermal load. The present invention provides an X-ray target containing an X-ray emitting me...
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WO/1995/020241A1 |
This invention is directed to an x-ray source comprising a housing (12), a power supply (12A), an elongated tubular probe (14), a target assembly (26), and a beam steering assembly (29). The housing encloses an electron beam source (22),...
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WO/1995/019039A1 |
An X-ray tube rotating anode (14) is cooled with a liquid metal (40) functioning as a recirculated heat exchange fluid and/or a metal film in a gap (39) between the anode (14) and a stationary structure. The liquid metal (40) is confined...
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WO/1995/017081A1 |
A scanning electron beam CT system generates an electron beam (16) along a beam source axis (38) offset from the scanner axis (36), or axis of symmetry, thereby permitting the x-ray subject (24) to pass completely through a stationary ga...
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WO/1995/017003A1 |
In a CT system, the electron beam (12) is focused by controlling the distribution of beam-generated ions electrostatically. The relative lengths of the upstream (self-expanding, de-focusing) beam region and downstream (converging, self-f...
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WO/1995/006952A1 |
An X-ray tube has a target for the electron beam constituted by a layer of target metal (22) such as copper or molybdenum, applied to the front face of a diamond heat sink (20). The target layer (22) is very thin, less than 50 'mu'm in t...
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WO/1995/004501A1 |
A method of treating brain tumors in a patient, comprising the steps of: identifying and locating a brain tumor in vivo; implanting at least a portion of an adjustable x-ray source (10A) in the patient proximate to the tumor, where the x...
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WO/1995/002890A1 |
A method and system (13) for extending the service life of an x-ray tube (14) wherein the coolant fluid which is circulated through a closed circulation system (13) to remove heat generated by the x-ray tube (14) and provide electrical i...
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WO/1994/028796A1 |
A method for aligning layers used in the production of microelectronics components, comprises superpositioning a first layer (4), having a small selectively positioned x-ray-transparent area (3), over a second layer having an alignment d...
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WO/1994/023552A1 |
Pulse mode X ray generator comprising a high tension source (HT), an X ray emitting head (4) capable of producing X rays when it receives an electrical pulse, a plurality of power cables (C1 to C6) disposed between the source and the hea...
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WO/1994/023458A2 |
A scanning beam digital x-ray imaging system according to the present invention includes an x-ray tube (10) having an electron beam source (161) and a target anode (50). Circuitry is provided for focussing the beam (164) and scanning the...
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WO/1994/016623A1 |
A catheter (10) comprises an elongated body (12) having a distal end (14) adapted to be inserted into a body cavity, vessel, tract, or the like and a proximate end (16) available to a person performing a medical procedure. The catheter (...
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WO/1994/008350A1 |
An apparatus (10) for treating a brain tumor in patient, which includes an x-ray source (12, 14, 22) of preselected or preprogrammed duration and intensity assembled in combination with a reference frame (300). The reference frame (300) ...
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WO/1994/007256A1 |
A rotating anode for an X-ray tube comprises a disk (1) of a heavy metal which is connected to a graphite sublayer (6) by soldering. The sublayer (6) is provided with through openings (7), each of them being located against the correspon...
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WO/1993/017446A1 |
An X-ray source that produces X-rays as a result of igniting an electron cyclotron resonance plasma inside a vacuumated dielectric spherical chamber (11) filled with a heavy atomic weight, non-reactive gas or gas mixture at low pressure....
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WO/1993/012533A1 |
An electron beam scanning system (8) producing an electron beam (12) in a relatively short chamber (10) includes an ion controlling electrode assembly (44) located between the electron gun (32) and system beam optics (38). The assembly (...
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WO/1993/009560A1 |
The present invention is directed to a method and apparatus for generating X-rays (e) employing a vacuum X-ray tube (10, 110) wherein the entire tube housing (12, 112) containing an X-ray emitting anode (14, 114) is rotated about an axis...
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WO/1993/008587A1 |
An improved metal center (70) rotating anode x-ray tube (400) is shown. The improved x-ray tube includes means for preventing the build-up of charge on the anode glass portion (480) of the tube envelope where the glass flares (486) by co...
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WO/1992/022993A1 |
A device for generating short-wave electromagnetic radiation, especially in the X and gamma radiation range, by the interaction of accelerated charge carriers, especially electrons or positrons, and a crystal grid, with a charge carrier ...
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WO/1992/020090A1 |
In order to configure ion an X-ray tube with a cooling device for cooling the anode (11;29) of the X-ray tube (10) and an incandescent cathode filament (12) fitted in an evacuated housing (13), in such a way that very effective cooling i...
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WO/1992/017771A1 |
The invention relates to a device for irradiating layers of bides with X-rays in which a target (2) switched as an anode acts as the X-ray source and which has a detector (6) to measure the reduction in the intensity of the X-ray beam af...
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WO/1992/009998A1 |
An apparatus and method for the treatment of a patient having a tumor is disclosed. An X-ray generating source (84) is positionable at la location in close proximity to the tumor. The X-ray generating source comprises a substantially cyl...
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WO/1992/003969A1 |
A multipath laminography system which enables multiple locations of an object (14) to be viewed in sequence without requiring mechanical movement of the object is disclosed. The object is interposed between a rotating X-ray source (32) a...
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WO/1992/004727A1 |
A low-level, electron beam (16) activated source (10) of preselected or programmable duration and intensity x-rays. The source may be fully or partially implanted into, or surface-mounted onto a desired area to effect a preselected irrad...
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WO/1992/003837A1 |
An X-ray tube for greatly enhancing the output of photons relative to a standard tube includes a source (10) of an electron beam focused on a target (22) at an angle of approximately 10° to produce high energy photons emitted at an angl...
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WO/1992/003830A1 |
A high-intensity, inexpensive X-ray lithography for the production of integrated circuits. Foil stacks (24) are bombarded with a high-energy electron beam (22) of 25 to 250 MeV to produce a flux (26) of soft X-rays of 500 eV to 3 keV. Me...
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WO/1991/016948A1 |
Radiation of specific material within a subject (30) is accomplished by use of a beam (54) of x-radiation modulated at a microwave frequency. The beam (54) with its modulation is directed at the subject (30) wherein the material interact...
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WO/1989/010003A1 |
In the preferred application for preionizing TE lasers, in particular excimer lasers, the plasma X-ray tube (ER), which can also be referred to as single-chamber ion tube, has an elongated, box-shaped housing (G) including in its inside ...
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WO/1989/010004A1 |
A plasma X-ray tube with high electron stream densities, in particular for preionizing gas lasers, is based on the principle of the production of electrons by emission of secondary electrons through ion bombardment. A thin initiating wir...
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WO/1989/006434A1 |
Disclosed are self-contained high electrical charge density entities, generated in electrical discharge devices (10) including an anode (18) and cathode (12) on opposite sides of a dielectric material (16). Apparatus for isolating the hi...
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WO/1989/002157A1 |
An improved target (18, 44, 56, 66, 76 or 102) for use in a laser pulse (12 or 104) induced plasma X-ray lithography system (10 or 100) has a plurality of small holes (74 or 90) fabricated through a base (68 or 84) against which the lase...
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WO/1988/010508A1 |
Radiological images of improved sharpness and contrast are obtained using on a radiogenic tube (1) comprising an anode (4) consisting, at least partially, of a massive layer (30) of a material which emits X-rays and in which at least one...
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WO/1988/008198A1 |
A plasma focus apparatus has a field distortion element (25) in the interelectrode gap (7) at the breech end displaced from the sleeve of insulating material (17) between the electrodes (3, 5). As a result, the neutron yield of the accel...
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WO/1988/007260A1 |
An X-ray target comprising a graphite substrate (1) and an X-ray generating metal-coated layer (2), wherein a metallic intermediate layer (3) is provided at the interface between the graphite substrate (1) and the X-ray generating metal-...
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WO/1987/007429A1 |
The apparatus for carrying out local chemical analysis at the surface of solid materials by spectroscopy of X photoelectrons comprises an ultrahigh vacuum analysis chamber (1) wherein is housed the sample to be analyzed (2) which is conn...
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WO/1987/006055A1 |
The average power capacity of a rotating-anode X-ray generator tube is limited by the slow radiation cooling of the anode. The invention removes this limitation by rotating the entire vacuum envelope (22') so the heat can be conducted di...
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