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公开(公告)号：US11212902B2
公开(公告)日：2021-12-28
申请号：US16800908
申请日：2020-02-25
摘要： An improved X-ray source is disclosed. The improved X-ray source has an enclosure, electron guns, a first set of address lines extending through the enclosure, a second set of address lines extending through the enclosure, and nodes defined by the intersection of the first and second set of address lines. Each of the electron guns is coupled to one of the nodes such that a state of each electron gun is uniquely controlled by modulating a state of one of the first set of address lines and one of the second set of address lines.
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公开(公告)号：US20210384001A1
公开(公告)日：2021-12-09
申请号：US17407748
申请日：2021-08-20
发明人： William Graves , Mark Holl
摘要： Some embodiments of the present disclosure provide a method that includes colliding a laser with an electron beam to produce backscattered x-rays while the electron beam is traversing a circular arc. This backscattering process is inverse Compton scattering (ICS). ICS x-rays are emitted in the same direction as the electrons. Because this ICS direction is changing as a function of time, the position of the x-ray beam on a detector will change depending on the timing of electron/laser collision. This position change is easily detected and converted to a timing measurement sensitive at the femtosecond scale, converting a very difficult timing measurement of laser pulse, electron pulse, and x-ray pulse synchronization into a simple and robust position measurement.
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公开(公告)号：US11183357B2
公开(公告)日：2021-11-23
申请号：US16649527
申请日：2018-09-20
申请人： Cetteen GmbH
发明人： Houman Jafari , Bo Gao , Johannes Ringel
摘要： A MBFEX tube (1) for an x-ray device comprises, in a vacuum tube (20), an anode (30) designed as a cooling finger and securely arranged in the vacuum tube, and a plurality of securely arranged cathodes (40, 41, 42), wherein the vacuum tube (20) comprises a plurality of cathode feed lines (50) and no more than two high-voltage bushings (51, 52), in a high-voltage bushing (52) a coolant pipe (31) is passed through by an internal coolant inner pipe (32), the coolant pipe (31) and the coolant inner pipe (32) are provided for cooling the anode (30) with a liquid coolant, the cathodes (40, 41, 42) are provided for field emission of electrons and are arranged on the anode (30) for generating x-ray sources (Q).
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公开(公告)号：US11177105B2
公开(公告)日：2021-11-16
申请号：US16389692
申请日：2019-04-19
申请人： Adaptix Ltd.
发明人： Gil Travish , Paul Betteridge , Mark Evans , Martin Holden , Abdul Sami Mughal , Kristen Schmiedehausen
摘要： A portable x-ray imaging source (100) capable of motion-free x-ray tomosynthesis, wherein said source is suitable for dental and small body-part/small area imaging.
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公开(公告)号：US11169098B2
公开(公告)日：2021-11-09
申请号：US16838329
申请日：2020-04-02
申请人： The Boeing Company
发明人： Morteza Safai
IPC分类号： G01N23/20008 , G01N23/203 , G21K1/04 , H01J35/14 , H01J35/12
摘要： Disclosed herein is an x-ray backscatter apparatus for non-destructive inspection of a part. The apparatus comprises an emission shaping mechanism that is configured to receive an electron emission from a cathode and to adjust a shape of the electron emission from a circular cross-sectional shape into a first elliptical cross-sectional shape. The x-ray source further comprises an anode that is configured to convert the electron emission into an unfiltered x-ray emission having a second elliptical cross-sectional shape. The apparatus also comprises an x-ray filter that comprises an emission aperture having a cross-sectional area smaller than an area of the second elliptical cross-sectional shape of the unfiltered x-ray emission. The x-ray filter is located relative to the unfiltered x-ray emission to allow only a portion of the unfiltered x-ray emission to pass through the emission aperture and form a filtered x-ray emission.
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公开(公告)号：US20210265126A1
公开(公告)日：2021-08-26
申请号：US16800908
申请日：2020-02-25
摘要： An improved X-ray source is disclosed. The improved X-ray source has an enclosure, electron guns, a first set of address lines extending through the enclosure, a second set of address lines extending through the enclosure, and nodes defined by the intersection of the first and second set of address lines. Each of the electron guns is coupled to one of the nodes such that a state of each electron gun is uniquely controlled by modulating a state of one of the first set of address lines and one of the second set of address lines.
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公开(公告)号：US11101098B1
公开(公告)日：2021-08-24
申请号：US16846403
申请日：2020-04-13
发明人： Ryosuke Yabushita
摘要： An X-ray generation apparatus includes an electron gun having a cathode emitting an electron beam, a first housing accommodating the electron gun, a target on which the electron beam emitted from the electron gun is incident, a second housing accommodating the target, and an electron passage extending between the first housing and the second housing and configured to transfer the electron beam from a first internal space of the first housing to a second internal space of the second housing. The electron passage includes a diameter-reduced end portion decreasing in diameter toward the target. The first housing is provided with a first exhaust flow path for evacuating the first internal space in the first housing. The second housing is provided with a second exhaust flow path for evacuating the second internal space in the second housing.
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公开(公告)号：US11056308B2
公开(公告)日：2021-07-06
申请号：US16560287
申请日：2019-09-04
申请人： Sigray, Inc.
发明人： Wenbing Yun , Janos Kirz
IPC分类号： H01J35/10 , H01J35/06 , H01J35/14 , G01N23/083 , H01J35/18 , G01N23/2273
摘要： A system for x-ray analysis includes at least one x-ray source configured to emit x-rays. The at least one x-ray source includes at least one silicon carbide sub-source on or embedded in at least one thermally conductive substrate and configured to generate the x-rays in response to electron bombardment of the at least one silicon carbide sub-source. At least some of the x-rays emitted from the at least one x-ray source includes Si x-ray emission line x-rays. The system further includes at least one x-ray optical train configured to receive the Si x-ray emission line x-rays and to irradiate a sample with at least some of the Si x-ray emission line x-rays.
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公开(公告)号：US20210195721A1
公开(公告)日：2021-06-24
申请号：US16722769
申请日：2019-12-20
发明人： Jani Reijonen
摘要： A apparatus may include a power supply to receive a first voltage potential and output a second voltage potential that is greater than the first voltage potential and a cathode emitter to emit ions in response to application of the second voltage potential. The apparatus may also include a step down transformer to receive the second voltage potential and output a third voltage potential that is less than the second voltage potential. The apparatus may also include a heating element to, in response to application of the third voltage potential, heat the cathode emitter and lower a work function of the cathode emitter.
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公开(公告)号：US10910189B2
公开(公告)日：2021-02-02
申请号：US16366698
申请日：2019-03-27
申请人： Euclid Beamlabs, LLC
发明人： Chunguang Jing , Roman Kostin , Ao Liu , Sergey Antipov , Alexei Kanareykin
摘要： In embodiments, a linac electron beam excited X-ray source weighing less than 50 pounds, and having a volume less than 1 cubic foot, injects electrons from an RF-excited, diamond tip cathode into a dielectric accelerator tube of diameter less than 10 mm, where the electrons are RF-accelerated to 1-4 MeV. A focusing channel having a plurality of annular permanent magnets can surround the dielectric tube, and a vacuum can be maintained in the tube by a getter pump. The accelerating RF can be 10 GHz or higher. The X-ray source can be powered by a rechargeable battery for more than an hour. Embodiments can be transported within a case having a display attached to an interior surface of its lid. An X-ray head can be removed from the case and extended up to 10 feet while remaining interconnected with the case by a flexible conduit.
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