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公开(公告)号：US20180213632A1
公开(公告)日：2018-07-26
申请号：US15879323
申请日：2018-01-24
Inventor： Sora PARK , Yoon-Ho SONG , Jin-Woo JEONG
CPC classification number: H05G1/22 , H01J35/08 , H01J35/12 , H01J2235/081 , H01J2235/1225 , H05G1/52 , H05G1/54
Abstract: Provided is a method for driving an X-ray source, which includes a cathode electrode, an electron source provided on the cathode electrode and configured to emit an electron beam, and an anode target including an electron beam irradiation surface with the electron beam irradiated thereto, the method including providing the electron beam in a plurality of main pulses, wherein each of the main pulses includes a plurality of short pulses having an idle time and a pulse time, and each of the idle time and the pulse time is shorter than a duration time of the main pulse, wherein applying the plurality of short pulses comprises irradiating the electron beam from the electron source towards the electron beam irradiation surface during the pulse time; and idling the electron beam during the idle time, wherein a duty cycle of the short pulse is 0.4 to 0.6, which is obtained by dividing the idle time by a sum of the pulse time and the idle time.
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公开(公告)号：US20160064177A1
公开(公告)日：2016-03-03
申请号：US14888312
申请日：2014-03-07
Applicant: SIEMENS AKTIENGESELLSCHAFT
Inventor： Svetlana GOSSMANN , Oliver HEID , Timothy HUGHES
CPC classification number: H01J35/18 , A61B6/4035 , H01J35/16 , H01J2235/06 , H01J2235/086 , H01J2235/1225 , H01J2235/168
Abstract: An evacuable outer housing having at least one X-ray-permeable beam exit window, an electron source, an anode and a collector for catching electrons which penetrate the anode are included as an X-ray source. The collector is part of an electrical current circuit for applying a negative potential to the anode, and the radiation window is disposed such that X-ray radiation which exits from the anode at an angle of 130 degrees to 230 degrees to the electron beam direction can be coupled out through the radiation window. An imaging system includes such an X-ray, an arrangement to accommodate an object to be examined, and an X-ray detector.
Abstract translation: 作为X射线源，包括具有至少一个X射线透过光束出射窗，电子源，阳极和用于捕获贯穿阳极的电子的集电体的可抽空的外壳。 收集器是用于向阳极施加负电位的电流电路的一部分，并且放射窗设置成使得从电极射出方向可以以130度至230度的角度离开阳极的X射线辐射 通过辐射窗口耦合出来。 成像系统包括这样的X射线，用于容纳待检查物体的装置和X射线检测器。
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公开(公告)号：US20150270092A1
公开(公告)日：2015-09-24
申请号：US14660189
申请日：2015-03-17
Applicant: Herbert Gruchatka , Ulrich Kühn , Lothar Werner
Inventor： Herbert Gruchatka , Ulrich Kühn , Lothar Werner
CPC classification number: H01J35/106 , A61B6/032 , A61B6/035 , A61B6/4488 , G01N23/046 , H01J35/06 , H01J2235/1225 , H05G1/025
Abstract: The embodiments relate to a CT system with a stationary part and a rotatable part, which is supported rotatably in the stationary part. At least one x-ray tube unit cooled by a cooling fluid, an x-ray detector lying opposite the x-ray tube unit, and a cooling device coupled in terms of fluid technology to the x-ray tube unit via a coolant circuit are disposed in the rotatable part. A cooling air channel, through which cooling air is able to be fed into the rotatable part, and an exhaust air channel, through which heated exhaust air is able to be taken away from the rotatable part, are disposed in the stationary part. In accordance with the embodiments, at least one overpressure relief valve is disposed in the coolant circuit, through which the cooling fluid is able to be conveyed away in the exhaust air channel.
Abstract translation: 实施例涉及具有固定部分和可旋转部分的CT系统，其可旋转地支撑在固定部分中。 由冷却流体冷却的至少一个X射线管单元，与X射线管单元相对的x射线探测器以及通过冷却剂回路与流体技术耦合到X射线管单元的冷却装置， 设置在可旋转部分中。 冷却空气通道，通过该冷却空气通道可以将冷却空气供给到可旋转部件中;以及排气通道，通过该排气通道，加热的废气能够从可旋转部分中取走，并设置在静止部分中。 根据实施例，至少一个超压安全阀设置在冷却剂回路中，冷却流体能够通过该冷却剂回路在排气通道中被输送。
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公开(公告)号：US07835501B2
公开(公告)日：2010-11-16
申请号：US12444749
申请日：2007-10-09
Applicant: Stefan Hauttmann , Rainer Pietig , Jeroen Jan Lambertus Horikx
Inventor： Stefan Hauttmann , Rainer Pietig , Jeroen Jan Lambertus Horikx
CPC classification number: H01J35/14 , H01J35/06 , H01J35/105 , H01J2235/064 , H01J2235/1225
Abstract: According to an exemplary embodiment an x-ray tube comprises a cathode, rotable disc anode, and a focal spot modulating unit, wherein the cathode is adapted to emit an electron beam, and wherein the focal spot modulating unit is adapted to modulate the electron beam in such a way that an intensity distribution of the electron beam on a focal spot on the anode is asymmetric such that the intensity of the electron beam on the focal spot is higher at the front of the focal spot with respect to the rotation direction.
Abstract translation: 根据示例性实施例，X射线管包括阴极，可旋转盘阳极和焦斑调制单元，其中阴极适于发射电子束，并且其中焦点调制单元适于调制电子束 使得电子束在阳极上的焦斑上的强度分布是不对称的，使得焦点上的电子束的强度相对于旋转方向在焦点的前部较高。
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公开(公告)号：US20100008470A1
公开(公告)日：2010-01-14
申请号：US12444749
申请日：2007-10-09
Applicant: Stefan Hauttmann , Rainer Pietig , Jeroen Jan Lambertus Horikx
Inventor： Stefan Hauttmann , Rainer Pietig , Jeroen Jan Lambertus Horikx
CPC classification number: H01J35/14 , H01J35/06 , H01J35/105 , H01J2235/064 , H01J2235/1225
Abstract: According to an exemplary embodiment an x-ray tube comprises a cathode, rotable disc anode, and a focal spot modulating unit, wherein the cathode is adapted to emit an electron beam, and wherein the focal spot modulating unit is adapted to modulate the electron beam in such a way that an intensity distribution of the electron beam on a focal spot on the anode is asymmetric such that the intensity of the electron beam on the focal spot is higher at the front of the focal spot with respect to the rotation direction.
Abstract translation: 根据示例性实施例，X射线管包括阴极，可旋转盘阳极和焦斑调制单元，其中阴极适于发射电子束，并且其中焦点调制单元适于调制电子束 使得电子束在阳极上的焦斑上的强度分布是不对称的，使得焦点上的电子束的强度相对于旋转方向在焦点的前部较高。
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Patent Agency Ranking
6.发明申请COOLING MECHANISM FOR HIGH-BRIGHTNESS X-RAY TUBE USING PHASE CHANGE HEAT EXCHANGE 审中-公开使用相变热交换器的高亮度X射线管的冷却机理公开(公告)号：US20160064176A1
公开(公告)日：2016-03-03
申请号：US14888690
申请日：2014-05-05
Applicant: Xiaodong XIANG
Inventor： Xiaodong XIANG
CPC classification number: H01J35/12 , H01J35/14 , H01J2235/1204 , H01J2235/1225 , H01J2235/127 , H01J2235/1279 , H05G1/025
Abstract: A mechanism for cooling the anode of an x-ray tube using a phase change material to transfer heat away from the anode. The x-ray tube is joined to a sealed heat exchange chamber which contains a liquid metal as a liquid to vapor phase change material (L-V PCM). The back side of the anode is exposed to an interior of the heat exchange chamber, and a jet sprayer inside the heat exchange chamber sprays a liquid of the metal onto the back side of the heated anode. The L-C PCM evaporates on that surface to carry away the heat, and the vapor then condenses back into the liquid on the cool surfaces of the heat exchange chamber. The surfaces of the heat exchange chamber may be cooled by convection cooling. Optionally, pipes containing a circulating cooling fluid may be provide inside the heat exchange chamber.
Abstract translation: 用于使用相变材料冷却x射线管的阳极以将热量从阳极传递出来的机构。 X射线管连接到密封的热交换室，其包含作为液体 - 气相变材料（L-V PCM）的液态金属。 阳极的背面暴露于热交换室的内部，热交换室内部的喷射喷雾器将金属液体喷射到加热阳极的背面。 L-C PCM在该表面上蒸发以携带热量，然后蒸汽冷凝回热交换室的冷表面上的液体中。 热交换室的表面可以通过对流冷却来冷却。 可选地，可以在热交换室内部提供包含循环冷却流体的管道。
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公开(公告)号：US20150078533A1
公开(公告)日：2015-03-19
申请号：US14551703
申请日：2014-11-24
Applicant: Quantum Technologie (Deutschland) GmbH
Inventor： Ki CHAN
CPC classification number: H01J35/12 , H01J35/06 , H01J2235/1204 , H01J2235/1225 , H01J2235/1262 , H01J2235/1266 , H01J2235/1287 , H01J2235/1291
Abstract: An X-ray tube 10 with an anode 30 comprising at least a rod shaped body with a front wall having target area 32 as target for an electron beam 27 on its frontal side provides a high intensity of X-ray radiation if the anode 30 has at least one cavity extending to the front wall, the cavity having a coating 50 of at least one inorganic salt.
Abstract translation: 具有阳极30的X射线管10包括至少一个具有前壁的杆状体，前壁具有目标区域32作为其正面上的电子束27的目标，如果阳极30具有，则提供高强度的X射线辐射 至少一个空腔延伸到前壁，空腔具有至少一种无机盐的涂层50。
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8.发明授权公开(公告)号：US08428222B2
公开(公告)日：2013-04-23
申请号：US12651010
申请日：2009-12-31
Applicant: Gregory Alan Steinlage , Michael Scott Hebert
Inventor： Gregory Alan Steinlage , Michael Scott Hebert
CPC classification number: H01J35/10 , H01J2235/083 , H01J2235/1204 , H01J2235/1225 , Y10T29/4973
Abstract: An x-ray tube target and method of repairing a damaged x-ray tube target. The x-ray tube target includes an original substrate and a portion of the original substrate that includes a new portion of a substrate and a new target track that is attached to a void in the original substrate. The method includes removal and replacement of damaged materials on used anode targets of x-ray tubes, thereby enabling recovery of used anode targets without the use of expensive and time consuming layer deposition methods. The method also avoids the high costs and long development cycles associated with known repair and refabrication methods for anode targets of x-ray tubes.
Abstract translation: x射线管靶和修复损坏的X射线管靶的方法。 X射线管靶包括原始衬底和原始衬底的包括衬底的新部分的部分和附着到原始衬底中的空隙的新的靶轨迹。 该方法包括在X射线管的使用的阳极靶上移除和更换损坏的材料，从而能够在不使用昂贵且耗时的层沉积方法的情况下回收使用的阳极靶。 该方法还避免了与用于X射线管的阳极靶的已知修复和重新制造方法相关联的高成本和长的开发周期。
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公开(公告)号：US09905390B2
公开(公告)日：2018-02-27
申请号：US14888690
申请日：2014-05-05
Applicant: Xiaodong Xiang
Inventor： Xiaodong Xiang
CPC classification number: H01J35/12 , H01J35/14 , H01J2235/1204 , H01J2235/1225 , H01J2235/127 , H01J2235/1279 , H05G1/025
Abstract: A mechanism for cooling the anode of an x-ray tube using a phase change material to transfer heat away from the anode. The x-ray tube is joined to a sealed heat exchange chamber which contains a liquid metal as a liquid to vapor phase change material (L-V PCM). The back side of the anode is exposed to an interior of the heat exchange chamber, and a jet sprayer inside the heat exchange chamber sprays a liquid of the metal onto the back side of the heated anode. The L-C PCM evaporates on that surface to carry away the heat, and the vapor then condenses back into the liquid on the cool surfaces of the heat exchange chamber. The surfaces of the heat exchange chamber may be cooled by convection cooling. Optionally, pipes containing a circulating cooling fluid may be provide inside the heat exchange chamber.
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公开(公告)号：US09799480B2
公开(公告)日：2017-10-24
申请号：US14660189
申请日：2015-03-17
Applicant: Herbert Gruchatka , Ulrich Kühn , Lothar Werner
Inventor： Herbert Gruchatka , Ulrich Kühn , Lothar Werner
CPC classification number: H01J35/106 , A61B6/032 , A61B6/035 , A61B6/4488 , G01N23/046 , H01J35/06 , H01J2235/1225 , H05G1/025
Abstract: The embodiments relate to a CT system with a stationary part and a rotatable part, which is supported rotatably in the stationary part. At least one x-ray tube unit cooled by a cooling fluid, an x-ray detector lying opposite the x-ray tube unit, and a cooling device coupled in terms of fluid technology to the x-ray tube unit via a coolant circuit are disposed in the rotatable part. A cooling air channel, through which cooling air is able to be fed into the rotatable part, and an exhaust air channel, through which heated exhaust air is able to be taken away from the rotatable part, are disposed in the stationary part. In accordance with the embodiments, at least one overpressure relief valve is disposed in the coolant circuit, through which the cooling fluid is able to be conveyed away in the exhaust air channel.
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