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公开(公告)号：US20240321542A1
公开(公告)日：2024-09-26
申请号：US18572420
申请日：2022-02-15
Applicant: HAMAMATSU PHOTONICS K.K.
Inventor： Naonobu SUZUKI , Atsushi ISHII , Ryosuke YABUSHITA , Akimichi SHIMIZU , Naofumi KOSUGI , Ginji SUGIURA
CPC classification number: H01J35/30 , H01J35/112 , H01J35/153 , H01J35/18
Abstract: An X-ray generation device includes: a housing; an electron gun including an electron-emitting unit that emits an electron inside the housing, and an extraction electrode for extracting the electron emitted from the electron-emitting unit; a target that generates an X-ray upon an incidence of the electron inside the housing; a window member that seals an opening of the housing and that transmits the X-ray; and a tube voltage application unit that applies a tube voltage between the electron-emitting unit and the target. A thickness of the target has a distribution, and the target is disposed to be inclined with respect to an imaginary plane orthogonal to an axis of the electron gun.
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公开(公告)号：US20210305003A1
公开(公告)日：2021-09-30
申请号：US16836187
申请日：2020-03-31
Applicant: ENERGETIQ TECHNOLOGY, INC. , HAMAMATSU PHOTONICS K.K.
Inventor： Matthew M. BESEN , Ryosuke YABUSHITA
Abstract: An X-ray generation apparatus includes an electron gun configured to emit an electron beam, a rotary anode unit having a target generating an X-ray by receiving the electron beam and configured to rotate the target, a magnetic lens having a coil configured to generate a magnetic force acting on the electron beam between the electron gun and the target, and a wall portion disposed between the target and the coil so as to face the target. The wall portion is formed with an electron passage hole through which the electron beam passes and a flow path configured to allow a coolant to flow.
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公开(公告)号：US20240274393A1
公开(公告)日：2024-08-15
申请号：US18568468
申请日：2022-02-14
Applicant: HAMAMATSU PHOTONICS K.K.
Inventor： Naonobu SUZUKI , Astushi ISHII , Ryosuke YABUSHITA , Akimichi SHIMIZU , Naofumi KOSUGI , Ginji SUGIURA
CPC classification number: H01J35/153 , H01J35/18
Abstract: An X-ray generation device includes: a housing; an electron gun including an electron-emitting unit that emits an electron inside the housing; a target that generates an X-ray upon an incidence of the electron inside the housing; a window member that seals an opening of the housing and that transmits the X-ray; a tube voltage application unit that applies a tube voltage between the electron-emitting unit and the target; and a magnetic field-forming unit for deflecting the electron by forming a magnetic field between the electron-emitting unit and the target. A thickness of the target has a distribution, and the target is disposed such that the electron is incident on a portion of the target which is relatively thinner in the thickness when the tube voltage is relatively low than when the tube voltage is relatively high.
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Patent Agency Ranking
公开(公告)号：US20210319971A1
公开(公告)日：2021-10-14
申请号：US16846401
申请日：2020-04-13
Applicant: HAMAMATSU PHOTONICS K.K.
Inventor： Shinya HATTORI , Ryosuke YABUSHITA , Naofumi KOSUGI
Abstract: An X-ray generation apparatus includes an electron gun emitting an electron beam having a circular cross-sectional shape, a magnetic focusing lens located downstream of the electron gun and focusing the electron beam while rotating the electron beam around an axis along a first direction, a magnetic quadrupole lens located downstream of the magnetic focusing lens and deforming the cross-sectional shape of the electron beam into an elliptical shape having a major axis along a second direction orthogonal to the first direction and a minor axis along a third direction orthogonal to the first direction and the second direction, and a target located downstream of the magnetic quadrupole lens and emitting an X-ray in response to incidence of the electron beam.
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公开(公告)号：US20240290568A1
公开(公告)日：2024-08-29
申请号：US18571441
申请日：2022-03-09
Applicant: HAMAMATSU PHOTONICS K.K.
Inventor： Naonobu SUZUKI , Atsushi ISHII , Ryosuke YABUSHITA , Akimichi SHIMIZU , Naofumi KOSUGI , Ginji SUGIURA
CPC classification number: H01J35/18 , H01J9/24 , H01J2209/264
Abstract: An X-ray tube includes a housing, an electron gun that emits an electron beam inside the housing, a target that generates an X-ray upon an incidence of the electron beam inside the housing, and a window member that seals an opening of the housing and that transmits the X-ray. The window member is formed in a plate shape from a single crystal diamond. A [100] direction of the single crystal diamond is in an intersection relationship with a thickness direction of the window member at an angle of less than 45 degrees.
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公开(公告)号：US20240282545A1
公开(公告)日：2024-08-22
申请号：US18571485
申请日：2022-03-09
Applicant: HAMAMATSU PHOTONICS K.K.
Inventor： Naonobu SUZUKI , Atsushi ISHII , Ryosuke YABUSHITA , Akimichi SHIMIZU , Naofumi KOSUGI , Ginji SUGIURA
CPC classification number: H01J35/18 , H01J35/153 , H01J35/30
Abstract: An X-ray generation device includes an X-ray tube, and an electron beam adjustment part. The X-ray tube includes a housing, an electron gun, a target, and a window member. When a first defect exists in the target, the electron beam adjustment part adjusts an electron beam such that the first defect is not included in an irradiation region of the electron beam on the target, and when a second defect exists in the window member, the electron beam adjustment part adjusts the electron beam such that the second defect is not included in a projection region of the electron beam on the window member.
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公开(公告)号：US20210305004A1
公开(公告)日：2021-09-30
申请号：US16836137
申请日：2020-03-31
Applicant: ENERGETIQ TECHNOLOGY, INC. , HAMAMATSU PHOTONICS K.K.
Inventor： Matthew M. BESEN , Ryosuke YABUSHITA
IPC: H01J35/10
Abstract: A rotary anode unit includes a target formed of a first metal material and a target support body formed of a second metal material, formed in a flat plate shape, and having first and second surfaces. A thermal conductivity of the second metal material is higher than a thermal conductivity of the first metal material. A first recessed portion is formed in the first surface at the outer part of the target support body. The target is disposed in the first recessed portion. A second recessed portion configured to define a flow path for allowing a coolant to flow is formed in the second surface at the inner part of the target support body. A thickness of a first region where the first recessed portion is formed is larger than a thickness of a second region where the second recessed portion is formed.
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公开(公告)号：US20190318901A1
公开(公告)日：2019-10-17
申请号：US16380224
申请日：2019-04-10
Applicant: HAMAMATSU PHOTONICS K.K.
Inventor： Atsushi ISHII , Ryosuke YABUSHITA , Tutomu INAZURU
Abstract: An X-ray tube includes a vacuum housing, an electron gun, and an anode that includes a target emitting X-rays and a target supporting portion supporting the target. The target supporting portion has an anode main body portion and a protrusion portion including a side surface portion. The anode main body portion includes an outer circumferential surface extending in a direction of a tube axis, and a connection portion formed between the side surface portion of the protrusion portion and the outer circumferential surface. An angle formed by the outer circumferential surface and the connection portion is an obtuse angle.
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