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公开(公告)号：US12101064B2
公开(公告)日：2024-09-24
申请号：US17891847
申请日：2022-08-19
Applicant: DREAMUS COMPANY
Inventor： Sun Yeol Lee
Abstract: The present exemplary embodiments proposes a vacuum tube amplifier module which removes a noise caused by external shock or vibration, including a vacuum tube amplifier which includes an amplifier in a vacuum tube to increase an energy of an input signal to output the energy as an output signal, an assembly unit which fixes at least one side of the vacuum tube amplifier so as to primarily remove the noise, and a magnet which is assembled in the assembly unit to levitate the amplifier so as to secondarily remove the noise to make the noise a predetermined reference value or lower.
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公开(公告)号：US20190189384A1
公开(公告)日：2019-06-20
申请号：US15845046
申请日：2017-12-18
Applicant: VAREX IMAGING CORPORATION
Inventor： Colton B. Woodman , Christopher M. Lewis
CPC classification number: H01J35/045 , H01J35/06 , H01J35/101 , H01J2201/304 , H05G1/02 , H05G1/30
Abstract: A bipolar grid may be positioned between a cathode and an anode. The bipolar grid may receive a positive grid voltage that corresponds to a voltage in an electric field between the cathode and the anode such that the grid does not interfere with an electron beam generated by an electron emitter of the cathode. The bipolar grid may receive a negative grid voltage to isolate the electron emitter such that the electron beam does not reach the anode.
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公开(公告)号：US20190131102A1
公开(公告)日：2019-05-02
申请号：US15996274
申请日：2018-06-01
Applicant: TRIBO LABS
Inventor： Carlos G. Camara , Mark G. Valentine , Zachary J. Gamlieli , Benjamin A. Lucas , David M. Kamkar , Pedro Cortes, JR. , Vasish Narayan M. , Gilberto Jimenez , Daniel E. Cuadra
CPC classification number: H01J35/08 , H01J35/02 , H01J35/06 , H01J35/18 , H01J35/186 , H01J35/20 , H05G2/00
Abstract: An x-ray device utilizes a band of material to exchange charge through tribocharging within a chamber maintained at low fluid pressure. The charge is utilized to generate x-rays within the housing, which may pass through a window of the housing. Various contact rods may be used as part of the tribocharging process.
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公开(公告)号：US10074503B2
公开(公告)日：2018-09-11
申请号：US15037971
申请日：2014-09-16
Applicant: Siemens Aktiengesellschaft
Inventor： Oliver Heid
Abstract: The invention relates to an electron gun for generating a flat electron beam, comprising a cathode with an emission surface which is curved about a central axis and which is designed to emit electrons. The electron gun further comprises an accelerating device for accelerating the electrons in a radial direction towards a target region on the central axis. Furthermore, the emission surface has a width in the azimuth direction and a height oriented perpendicularly to the width, said width being at least ten times greater than the height.
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公开(公告)号：US10014149B2
公开(公告)日：2018-07-03
申请号：US14762477
申请日：2013-11-05
Applicant: Futaba Corporation , HAMAMATSU PHOTONICS K.K.
Inventor： Tatsuya Nakamura , Norimasa Kosugi , Naoki Okumura , Yoshitaka Sato , Akira Matsumoto , Yoshihisa Marushima , Kazuhito Nakamura
Abstract: In an X-ray radiation source, a counter wall made of alkali-containing glass, out of walls of a housing of an X-ray tube, is sandwiched between a filament and an electric field control electrode to each of which a negative high voltage is applied. This configuration prevents an electric field from being generated in the counter wall and thus suppresses precipitation of alkali ions from the glass. Therefore, it prevents change in potential relationship between electrodes at different potentials such as the filament, grid, and target and enables stable operation to be maintained, without occurrence of a trouble of failure in maintaining a desired X-ray amount.
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Patent Agency Ranking
公开(公告)号：US20180182589A1
公开(公告)日：2018-06-28
申请号：US15737933
申请日：2015-06-24
Applicant: SHIMADZU CORPORATION
Inventor： TAKUMI KOBAYASHI
IPC: H01J35/06
CPC classification number: H01J35/06
Abstract: An X-ray tube device includes an anode (2) and a cathode (1) that emits an electron to the anode. The cathode has an electron emission element (11) having an electric pathway (111) formed as a flat-plate; one pair of terminals connected to the electrode, and support members (13a, 13b) that support an electron emission element independently installed from the terminal and insulated against the electrodes. The terminals include an enlargement member (121, 122) in which a cross-section area in the orthogonal direction to the extending direction of the terminals, is larger than the cross-section area of the electric current pathway in the orthogonal direction to the extending direction of the electric current pathway.
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公开(公告)号：US10008359B2
公开(公告)日：2018-06-26
申请号：US14642283
申请日：2015-03-09
Applicant: VAREX IMAGING CORPORATION
Inventor： Bradley D. Canfield , Colton B. Woodman
CPC classification number: H01J35/14 , H01J35/06 , H01J35/26 , H01J35/305
Abstract: An X-ray tube can include: a cathode including an electron emitter; an anode configured to receive the emitted electrons; a first magnetic quadrupole between the cathode and the anode and having a first quadrupole yoke with four first quadrupole pole projections extending from the first quadrupole yoke and oriented toward a central axis of the first quadrupole yoke and each of the four first quadrupole pole projections having a first quadrupole electromagnetic coil; a second magnetic quadrupole between the first magnetic quadruple and the anode and having a second quadrupole yoke with four second quadrupole pole projections extending from the second quadrupole yoke and oriented toward a central axis of the second quadrupole yoke and each of the four second quadrupole pole projections having a second quadrupole electromagnetic coil; and a magnetic dipole between the cathode and anode and having a dipole yoke with four dipole electromagnetic coils.
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公开(公告)号：US10008358B2
公开(公告)日：2018-06-26
申请号：US15229063
申请日：2016-08-04
Inventor： Jin-Woo Jeong , Yoon-Ho Song
CPC classification number: H01J35/06 , G21K1/02 , H01J35/065 , H01J35/16 , H01J2201/30469 , H01J2235/068 , H01J2235/166
Abstract: Disclosed is an X-ray source, including: a cathode including a shielding channel through which an X-ray passes; emitters formed on an upper surface of the cathode, and arranged around the shielding channel; an anode positioned so as to face the cathode, and including an anode target in which an E-beam is focused; and a gate electrode positioned between the cathode and the anode, and including gate holes at positions corresponding to those of the emitters.
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公开(公告)号：US10008357B2
公开(公告)日：2018-06-26
申请号：US15717384
申请日：2017-09-27
Applicant: NIKON METROLOGY NV
Inventor： Roger Hadland
IPC: H01J35/10 , H01J35/02 , H01J35/16 , F16J15/16 , H01J29/48 , F16C35/04 , F16C33/76 , H02M1/32 , H05G1/12 , H02M7/10 , H01J35/04
CPC classification number: H01J35/025 , F16C33/768 , F16C35/042 , F16J15/16 , H01J29/48 , H01J35/04 , H01J35/06 , H01J35/101 , H01J35/106 , H01J35/108 , H01J35/116 , H01J35/16 , H01J37/065 , H01J2235/0236 , H01J2235/083 , H01J2235/086 , H01J2235/1046 , H01J2235/1204 , H01J2235/1262 , H01J2235/20 , H01J2237/2482 , H02M1/32 , H02M7/106 , H05G1/12
Abstract: Disclosed herein are a high-voltage generator for an x-ray source, an x-ray gun, an electron beam apparatus, a rotary vacuum seal, a target assembly for an x-ray source, a rotary x-ray emission target, and an x-ray source. These various aspects may separately and/or together enable the construction of an x-ray source which can operate at energies of up to 500 kV and beyond, which is suitable for use in commercial and research x-ray applications such as computerised tomography. In particular, the high-voltage generator includes a shield electrode electrically connected intermediate of a first voltage multiplier and a second voltage multiplier. The electron beam apparatus includes control photodetectors and photo emitters having a transparent conductive shield arranged therebetween. The rotary vacuum seal includes a pumpable chamber at a position intermediate between high-pressure and low-pressure ends of a bore for a rotating shaft. The rotary target assembly is configured such that when a torque between a bearing housing and a vacuum housing exceeds a predetermined torque, the bearing housing rotates relative to the vacuum housing. The rotary x-ray emission target has a plurality of target plates supported on a hub, the plates being arranged on the hub to provide an annular target region about an axis rotation of the hub. The x-ray gun is provided with a shield electrode maintained at a potential difference relative to the x-ray target different to the electron beam emission cathode.
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公开(公告)号：US09953798B2
公开(公告)日：2018-04-24
申请号：US15377133
申请日：2016-12-13
Applicant: Airdrie Partners I, LP
Inventor： Thomas A Case , Josh Star-Lack , Brian Patrick Wilfley
CPC classification number: H01J35/14 , H01J35/06 , H01J35/08 , H01J2235/087
Abstract: The present invention pertains to an apparatus for generating a charged particle beam comprising a magnetic element for controlling the profile of the beam in a predetermined plane. A cathode can be provided for emitting charged particles and an anode for accelerating the charged particles along an axis of travel. The present invention also pertains to a method for generating a particle beam that has a uniform profile in a predetermined plane comprising inducing emission of charged particles from an emitter, accelerating those particles along and toward an axis of beam travel, generating a magnetic field with a component aligned with the axis of beam travel but different in the predetermined plane than at the emitter, and modifying the beam profile.
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