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公开(公告)号：US11557452B2
公开(公告)日：2023-01-17
申请号：US17013990
申请日：2020-09-08
发明人： Lukas Havla , Anja Fritzler , Peter Roehrer
摘要： An x-ray emitter includes an x-ray tube and an x-ray emitter housing. In an embodiment, the x-ray tube includes an evacuated x-ray tube housing, a cathode for emitting electrons and an anode for generating x-rays as a function of the electrons. Further, in an embodiment, the x-ray emitter housing includes the x-ray tube and outside of the x-ray tube, a gaseous cooling medium. In an embodiment, the x-ray emitter further includes a compressor for a forced convection of the gaseous cooling medium for cooling the x-ray tube, a pressure ratio between the intake side and pressure side of the compressor being greater than 1.3.
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公开(公告)号：US11501944B2
公开(公告)日：2022-11-15
申请号：US16894797
申请日：2020-06-06
发明人： Yanfeng Du , Yingbiao Liu
摘要： The present disclosure relates to a method and system for adjusting a focal point position of an X-ray tube. The method may include: obtaining a first thermal capacity and a first position of a focal point of an X-ray tube; obtaining a second thermal capacity of the X-ray tube; determining a second position of the focal point the X-ray tube based on the second thermal capacity; determining a target grid voltage difference of a focusing cup of the X-ray tube based on the first position and the second position of the focal point; and adjusting the X-ray tube based on the target grid voltage difference.
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公开(公告)号：US20220346212A1
公开(公告)日：2022-10-27
申请号：US17238799
申请日：2021-04-23
摘要： An x-ray source has a target assembly including a target, an electron source for generating electrons to impact the target, and a flight tube assembly separating the target assembly from the electron source and transporting a coolant to the target assembly. The flight tube assembly includes a flight tube interface ring, a target cartridge tube, and an electrical isolation ring between the flight tube interface ring and the target cartridge tube.
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公开(公告)号：US11419563B2
公开(公告)日：2022-08-23
申请号：US17102367
申请日：2020-11-23
发明人： Jie Gu
摘要： A method for controlling the movement of an X-ray source via a suspension device includes obtaining, during a movement of the suspension device along the rail, a first speed of the suspension device at the first reference point. The first reference point may correspond to a first target position. The method may also include determining whether the first speed of the suspension device at the first reference point is less than a threshold speed. In response to a result of the determination that the first speed of the suspension device at the first reference point is less than the threshold speed, the method may further include actuating a control device to move the suspension device to the first target position.
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公开(公告)号：US11234884B2
公开(公告)日：2022-02-01
申请号：US16686892
申请日：2019-11-18
IPC分类号： H05G1/02 , A61G13/10 , A61B6/00 , G01N23/046 , A61B90/00
摘要： A medical apparatus is provided. The medical apparatus comprises an operating table provided with a base and a tabletop for supporting a patient, an x-ray detector attached to the operating table, and at least one x-ray source configured to be attached to the operating table in a manner so as to be movable with respect to the operating table.
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公开(公告)号：US20220030692A1
公开(公告)日：2022-01-27
申请号：US17309899
申请日：2019-10-29
发明人： Wei LIU , Rui ZHENG , Qingguo XIE , Peng XIAO
IPC分类号： H05G1/02
摘要： A soft X-ray light source, including a vacuum target chamber, a refrigeration cavity, and a nozzle. The refrigeration cavity and the nozzle are contained in the vacuum target chamber. The nozzle (36) is arranged in the refrigeration cavity. The vacuum target chamber has a t-branch tube and a multi-channel tube. The t-branch tube has a first outlet and a second outlet opposed to each other and a third outlet, wherein the first outlet is connected to a mounting plate through which a refrigerant inlet pipe, a refrigerant outlet pipe, and a working gas pipe respectively pass and are connected to the refrigeration cavity, and wherein the third outlet is connected to a vacuum extraction device. The multi-channel tube has a top opening and a bottom opening opposed to each other, wherein the top opening is connected to the second outlet, wherein a vacuum outlet is provided at the bottom opening.
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公开(公告)号：US11189389B2
公开(公告)日：2021-11-30
申请号：US16692121
申请日：2019-11-22
IPC分类号： G21G4/02 , H05H3/06 , G01V5/10 , H01J35/04 , H01J35/14 , H01J35/00 , H05G1/10 , H05G1/02 , H05G1/00
摘要： Disclosed is a radiation logging tool, comprising a tool housing; a compact generator that produces radiation; a power supply coupled to the compact generator; and control circuitry. Embodiments of the compact generator comprise a generator vacuum tube comprising a source generating charged particles, and a target onto which the charged particles are directed; and a high voltage supply comprising a high voltage multiplier ladder located laterally adjacent to the generator vacuum tube. The high voltage supply applies a high voltage between the source and the target to accelerate the charged particles to a predetermined energy level. The compact generator also includes an electrical coupling between an output of the high voltage supply and the target of the generator vacuum tube to accommodate the collocated positions of the generator vacuum tube and the high voltage power supply.
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公开(公告)号：US11129264B2
公开(公告)日：2021-09-21
申请号：US17040140
申请日：2019-02-18
发明人： Atsushi Ishii , Akihito Kobayashi
摘要： An X-ray generator includes an X-ray tube, an X-ray tube accommodation portion, and a power source unit having an internal substrate supplying a voltage to the X-ray tube sealed inside an insulating block. A first space is defined by an upper surface of the insulating block and an inner surface of the X-ray tube accommodation portion. A second space is defined by a recess portion opening to the outside formed on a side surface of the insulating block and a sealing member sealing an opening of the recess portion. A communication hole causing the first space and the second space to communicate with each other is provided in the insulating block. Insulating oil is enclosed in the first space and the second space. A depth of the recess portion is smaller than a width of the recess portion.
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公开(公告)号：US11064600B2
公开(公告)日：2021-07-13
申请号：US16612783
申请日：2018-05-30
IPC分类号： A61B6/00 , A61B6/03 , H01J35/06 , H01J35/08 , H01J35/14 , H05G1/02 , H05G1/08 , H05G1/10 , H05G1/26 , H05G1/32 , H05G1/34 , H05G1/46 , H05G1/52 , H05G1/54 , H01J35/10
摘要： At least one power supply produces a voltage between a cathode and an anode. The cathode and anode are operable such that electrons emitted from the cathode interact with the anode with energies corresponding to the voltage. The electrons interact with the anode at a focal spot to generate X-rays. The power supply provides the cathode with a cathode current. An electron detector is positioned relative to the anode, and a backscatter electron signal is measured from the anode. The measured backscatter electron signal is provided to a processing unit, which determines a cathode current correction and/or a correction to the voltage between the cathode and the anode using the measured backscatter electron signal and a correlation between anode surface roughness and backscatter electron emission.
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公开(公告)号：US11058377B2
公开(公告)日：2021-07-13
申请号：US16614114
申请日：2018-05-18
摘要： The present invention relates to a device (1) for determining positioning data for an X-ray image acquisition device (2) on a mobile patient support unit (3), the device comprising: a processing unit (10); and a status detector (11); wherein the status detector (11) is configured to acquire geometry data and type data of a mobile patient support unit (3) and of an X-ray image acquisition device (2) on the mobile patient support unit (3), and to transmit a status signal comprising the geometry data and the type data; wherein the processing unit (10) is configured to receive the status signal and data about region of interest position on the patient; and wherein, based on the status signal and the region of interest position, the processing unit (10) is configured to determine positioning and alignment data for an X-ray image acquisition device (2) on the mobile patient support unit (3), and to provide an image acquisition protocol for the X-ray image acquisition device (2). The device (1) may provide an X-ray image acquisition system having a simple and easy to operate construction.
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