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公开(公告)号：US12080508B2
公开(公告)日：2024-09-03
申请号：US17628615
申请日：2020-07-21
CPC分类号： H01J35/153 , H01J35/10 , H01J35/30 , H01J2235/088
摘要： An X-ray source (100) for generating X-ray radiation of first and second energy spectra is proposed, wherein the X-ray intensity imbalance between the first and second energy spectra is reduced as compared to conventional X-ray sources. The reduction of the X-ray intensity imbalance is achieved by configuring a smaller electron impact angle (141) onto the anode (102) when the higher tube voltage is applied as compared to when the lower tube voltage is applied.
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公开(公告)号：US20240194435A1
公开(公告)日：2024-06-13
申请号：US18554873
申请日：2022-04-12
申请人： NCX Corporation
发明人： Jian ZHANG
摘要： An X-ray source device includes a cathode arrangement including a cathode device arranged to emit an electron beam therefrom. An anode arrangement includes an anode spaced apart from the cathode device at a focal distance and arranged to receive the electron beam from the cathode device at one of a plurality of focal spots thereon. The anode is movable such that each of the focal spots is alignable to receive the electron beam, in some instances while maintaining the focal distance of the anode from the cathode device. An associated method of forming an X-ray source device is also provided.
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公开(公告)号：US20230036147A1
公开(公告)日：2023-02-02
申请号：US17872782
申请日：2022-07-25
发明人： Yoon-Ho SONG , Jun-Tae Kang , Jae-Woo Kim , Sora Park , Jin-Woo Jeong
摘要： Provided is an X-ray tube including a cathode structure, an anode spaced apart from the cathode structure, a spacer structure disposed between the cathode structure and the anode, and an external power supply connected to each of the cathode structure, the anode, and the spacer structure. Here, the spacer structure includes a first spacer disposed adjacent to the cathode structure and a second spacer disposed on the first spacer and disposed adjacent to the anode. The first spacer includes a first portion adjacent to the cathode structure and a second portion adjacent to a contact point of the first spacer and the second spacer. The second spacer includes a third portion adjacent to the contact point and a fourth portion adjacent to the anode. Each of the first portion and the third portion has a volume resistivity less than that of the second portion.
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公开(公告)号：US11545331B2
公开(公告)日：2023-01-03
申请号：US17223625
申请日：2021-04-06
申请人： Shimadzu Corporation
发明人： Ken Shirota , Haruo Uno
摘要： The X-ray imaging apparatus includes: a main power supply operation unit for switching ON/OFF of power supply to the X-ray imaging apparatus; a braking unit for decelerating a rotation speed of the anode to a predetermined braking speed lower than a resonance range which is a rotation speed of the anode at which resonance occurs in the X-ray tube; and a non-braking stop prediction unit configured to detect a predetermined situation in which a non-braking stop state is predicted, the non-braking stop state being a state in which the main power supply operation unit is operated to be turned to an OFF state without decelerating the rotating anode by the braking unit. The non-braking stop prediction unit activates the braking unit by detecting the predetermined situation to decrease the rotation speed of the anode to the braking speed.
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公开(公告)号：US11540793B2
公开(公告)日：2023-01-03
申请号：US17150180
申请日：2021-01-15
申请人： Shimadzu Corporation
发明人： Takayuki Mitsuhashi , Haruo Uno , Ken Shirota
摘要： Provided is an X-ray imaging system capable of performing X-ray imaging quickly. The X-ray imaging system is provided with: an X-ray tube device including a cathode and an anode, the X-ray tube device being capable of performing X-ray imaging by irradiating an imaging target with X-rays in a state of rotating the anode; a light irradiation device including a collimator defining an X-ray irradiation range of the X-rays with respect to the imaging target, a visible light irradiation unit for emitting visible light to the imaging target and a light irradiation operation unit for performing an operation for making the visible light irradiation unit in the light irradiation state; and a controller for controlling operations of the X-ray tube device and the light irradiation device. The controller rotates the anode at an imaging possible rotation speed capable of performing X-ray imaging when the light irradiation operation unit is operated.
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公开(公告)号：US20220375711A1
公开(公告)日：2022-11-24
申请号：US17745135
申请日：2022-05-16
发明人： Xiao Dong , Zhen Neng Zhang , Da Peng Hao , Qi Zhou
IPC分类号： H01J35/10
摘要： The disclosure relates to an X-ray tube, comprising a cathode and an anode, the cathode and anode being accommodated in a housing which provides a vacuum environment.
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公开(公告)号：US11443913B2
公开(公告)日：2022-09-13
申请号：US17330978
申请日：2021-05-26
发明人： Anja Fritzler
摘要： An X-ray radiator and an X-ray assembly are disclosed. The X-ray radiator according to an embodiment has an evacuated X-ray tube housing, mounted to be rotatable about a rotation axis, the X-ray tube housing including an anode and an electron source. The anode is arranged within the X-ray tube housing non-rotatably relative to the X-ray tube housing and is configured to generate X-ray radiation via electrons impacting upon a focal spot of the anode, the electron source being mounted substantially stationary within the X-ray tube housing relative to the rotation axis. The electron source has a main emitter and at least one subsidiary emitter for emitting electrons. The electron emission of the main emitter and/or of the at least one subsidiary emitter is controllable such that a spatial movement of the focal spot due to a movement of the electron source is reduced.
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公开(公告)号：US11227739B2
公开(公告)日：2022-01-18
申请号：US16574719
申请日：2019-09-18
发明人： Anja Fritzler , Peter Geithner , Petra Maurer , Thomas Weber , Brigitte Streller
摘要： An x-ray anode for an x-ray emitter has a structured surface provided for impingement with electrons. According to an embodiment of the invention, the structured surface has a surface structure which alternates periodically at least in sections and which varies in the micrometer range with respect to its depth extension and periodicity.
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公开(公告)号：US20210350997A1
公开(公告)日：2021-11-11
申请号：US17382808
申请日：2021-07-22
发明人： Yong Liang , Vance Scott Robinson , Uwe Wiedmann
摘要： An X-ray source includes a target configured to generate X-rays when impacted by an electron beam. The target includes one or more thermally conductive layers; and one or more X-ray generating layers interleaved with the thermally conductive layers, wherein at least one X-ray generating layer comprises regions of X-ray generating material separated by thermally conductive material within the respective X-ray generating layer.
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公开(公告)号：US11164713B2
公开(公告)日：2021-11-02
申请号：US16836187
申请日：2020-03-31
摘要： 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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