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公开(公告)号：US20110228905A1
公开(公告)日：2011-09-22
申请号：US13131070
申请日：2009-11-19
CPC分类号： H01J35/10 , H01J2235/1046 , H01J2235/1204
摘要： In a rotatable anode (4) of an X-ray tube, a heat transfer between the rotating disc of the anode (4a) and the second bearing element (11) is achieved by providing a contact material (14) within a gap (16a, b) between the anode disc (4a) and the second bearing element (11). Contact elements (15) protrude from the second bearing element (11) into the contact material (14), thus allowing a heat transfer from anode disc (4a) to second bearing element (11) via contact material (14) and contact element (15).
摘要翻译： 在X射线管的可旋转阳极（4）中，通过在间隙（16a）内设置接触材料（14）来实现阳极（4a）的旋转盘和第二支承元件（11）之间的热传递 ，b）在阳极盘（4a）和第二轴承元件（11）之间。 接触元件（15）从第二轴承元件（11）突出到接触材料（14）中，从而允许通过接触材料（14）和接触元件（14）从阳极盘（4a）到第二轴承元件（11） 15）。
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公开(公告)号：US08582723B2
公开(公告)日：2013-11-12
申请号：US13131070
申请日：2009-11-19
IPC分类号： H01J35/00
CPC分类号： H01J35/10 , H01J2235/1046 , H01J2235/1204
摘要： In a rotatable anode (4) of an X-ray tube, a heat transfer between the rotating disc of the anode (4a) and the second bearing element (11) is achieved by providing a contact material (14) within a gap (16a, b) between the anode disc (4a) and the second bearing element (11). Contact elements (15) protrude from the second bearing element (11) into the contact material (14), thus allowing a heat transfer from anode disc (4a) to second bearing element (11) via contact material (14) and contact element (15).
摘要翻译： 在X射线管的可旋转阳极（4）中，通过在间隙（16a）内设置接触材料（14）来实现阳极（4a）的旋转盘和第二支承元件（11）之间的热传递 ，b）在阳极盘（4a）和第二轴承元件（11）之间。 接触元件（15）从第二轴承元件（11）突出到接触材料（14）中，从而允许通过接触材料（14）和接触元件（14）从阳极盘（4a）到第二轴承元件（11） 15）。
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公开(公告)号：US07654740B2
公开(公告)日：2010-02-02
申请号：US12095352
申请日：2006-11-27
IPC分类号： G01D18/00
CPC分类号： H01J35/10 , H01J35/14 , H01J2235/086 , H05G1/52
摘要： X-ray tube and method for determination of focal spot properties The invention relates to an x-ray tube (1) comprising at least one cathode (3) which emits electrons accelerated towards a rotating anode (5) such that the focal spot (27) is formed on a surface (9) of the anode (5). A structure (15), in particular slits or pits (13), is disposed on the surface (9) of the anode (5). The x-ray tube (1) comprises a detector (7) for detecting a detection signal which changes, if the structure (15) on the rotating anode (5) passes the focal spot. The x-ray tube (1) further comprises determination means (6) for determining properties of the focal spot from changes of the detection signal. Thus, properties of the focal spot can be determined from changes of the detection signal during operation of the x-ray tube (1).
摘要翻译： X射线管和焦点特性的测定方法本发明涉及一种包括至少一个阴极（3）的X射线管（1），该阴极发射朝向旋转阳极（5）加速的电子，使得焦点（27） ）形成在阳极（5）的表面（9）上。 在阳极（5）的表面（9）上设置结构（15），特别是狭缝或凹坑（13）。 如果旋转阳极（5）上的结构（15）通过焦点，则X射线管（1）包括用于检测改变的检测信号的检测器（7）。 X射线管（1）还包括用于根据检测信号的变化来确定焦斑特性的确定装置（6）。 因此，可以根据X射线管（1）的操作期间的检测信号的变化来确定焦点的特性。
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公开(公告)号：US20090067578A1
公开(公告)日：2009-03-12
申请号：US12095352
申请日：2006-11-27
IPC分类号： H01J35/10
CPC分类号： H01J35/10 , H01J35/14 , H01J2235/086 , H05G1/52
摘要： X-ray tube and method for determination of focal spot properties. The invention relates to an x-ray tube (1) comprising at least one cathode (3) which emits electrons accelerated towards a rotating anode (5) such that the focal spot (27) is formed on a surface (9) of the anode (5). A structure (15), in particular slits or pits (13), is disposed on the surface (9) of the anode (5). The x-ray tube (1) comprises a detector (7) for detecting a detection signal which changes, if the structure (15) on the rotating anode (5) passes the focal spot. The x-ray tube (1) further comprises determination means (6) for determining properties of the focal spot from changes of the detection signal. Thus, properties of the focal spot can be determined from changes of the detection signal during operation of the x-ray tube (1).
摘要翻译： X射线管和焦斑特性测定方法。 本发明涉及一种包括至少一个阴极（3）的X射线管（1），该阴极发射朝向旋转阳极（5）加速的电子，使得焦点（27）形成在阳极的表面（9）上 （5）。 在阳极（5）的表面（9）上设置结构（15），特别是狭缝或凹坑（13）。 如果旋转阳极（5）上的结构（15）通过焦点，则X射线管（1）包括用于检测改变的检测信号的检测器（7）。 X射线管（1）还包括用于根据检测信号的变化来确定焦斑特性的确定装置（6）。 因此，可以根据X射线管（1）的操作期间的检测信号的变化来确定焦点的特性。
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公开(公告)号：US20050201519A1
公开(公告)日：2005-09-15
申请号：US10510004
申请日：2003-03-10
申请人： Christoph Bathe , Wolfgang Chrost
发明人： Christoph Bathe , Wolfgang Chrost
CPC分类号： H01J35/105 , H05G1/025
摘要： The invention relates to a device for generating X-rays (41). The device comprises a source (5) for generating an electron beam (35), and a carrier (7) which is rotatable about an axis of rotation (15) and which is provided with a material (9) which generates the X-rays as a result of the incidence of the electron beam thereon. The device further comprises a heat absorbing member (45) which is arranged between the source and the carrier to catch electrons, which are scattered back from an impingement position (39) of the electron beam on the carrier, and to absorb a portion of the radiant heat generated by the carrier when heated during operation. The heat absorbing member is in thermal connection with a cooling system (51) of the device. According to the invention, the thermal connection between the heat absorbing member (45) and the cooling system (51) comprises a thermal barrier (57) which limits a rate of heat transfer (( ) occurring via the thermal connection per unit of temperature difference between the heat absorbing member and the cooling system. In a particular embodiment, said thermal barrier comprises an annular mounting member (57) having a limited dimension (hB), by means of which the heat absorbing member is mounted in the device. As a result of said thermal barrier, the heat absorbed by the heat absorbing member is gradually transferred to the cooling system, so that thermal peak loads on the cooling system and problems like boiling of the cooling liquid are avoided. In addition, relatively high temperatures of the heat absorbing member are allowed, so that the mass and volume of the heat absorbing member, which are necessary to provide the heat absorbing member with a sufficiently large heat absorbing capacity, are considerably reduced.
摘要翻译： 本发明涉及一种用于产生X射线的装置（41）。 该装置包括用于产生电子束（35）的源（5）和可围绕旋转轴线（15）旋转的载体（7），并且其具有产生X射线的材料（9） 作为其上的电子束的入射的结果。 该装置还包括一个设置在源极和载体之间的吸热构件（45），以捕捉从电子束的撞击位置（39）向载体上散射的电子，并吸收一部分 在运行期间加热时由载体产生的辐射热。 吸热构件与装置的冷却系统（51）热连接。 根据本发明，吸热构件（45）和冷却系统（51）之间的热连接包括热障（57），其限制通过每单位温度差的热连接发生的热传递速率（（） 在特定实施例中，所述热障包括具有有限尺寸（hB）的环形安装构件（57），通过该尺寸将吸热构件安装在装置中，作为 所述热障的结果是，由吸热构件吸收的热量逐渐转移到冷却系统，从而避免了冷却系统的热峰值负荷和冷却液沸腾等问题，另外， 允许吸热构件，使得为吸热构件提供足够大的热绝缘体所需的吸热构件的质量和体积 安装能力大大降低。
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公开(公告)号：US08989351B2
公开(公告)日：2015-03-24
申请号：US13266478
申请日：2010-05-12
申请人： Gereon Vogtmeier , Wolfgang Chrost
发明人： Gereon Vogtmeier , Wolfgang Chrost
CPC分类号： H01J35/06 , H01J35/14 , H01J2235/062 , H01J2235/068 , H01J2235/086
摘要： The invention relates to an X-ray source (100) with an electron-beam-generator (120) for generating electron beams (B, B′) that converge towards a target (110). Thus the spatial distribution of X-ray focal spots (T, T′) on the target (110) can be made denser than the distribution of electron sources (121), wherein the latter is usually dictated by hardware limitations. The electron-beam-generator (120) may particularly comprise a curved emitter device (140) with a matrix of CNT based electron emitters (141) and an associated electrode device (130).
摘要翻译： 本发明涉及一种具有用于产生朝向目标（110）会聚的电子束（B，B'）的电子束发生器（120）的X射线源（100）。 因此，靶（110）上的X射线焦点（T，T'）的空间分布可以比电子源（121）的分布更致密，其中后者通常由硬件限制来决定。 电子束发生器（120）可以特别地包括具有基于CNT的电子发射器（141）和相关联的电极装置（130）的矩阵的弯曲发射器装置（140）。
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7.发明授权公开(公告)号：US08576988B2
公开(公告)日：2013-11-05
申请号：US13393835
申请日：2010-09-13
申请人： Astrid Lewalter , Rainer Pietig , Wolfgang Chrost
发明人： Astrid Lewalter , Rainer Pietig , Wolfgang Chrost
CPC分类号： H01J35/28 , A61B6/025 , A61B6/4028 , A61B6/4488 , A61B6/502 , A61B6/508 , H01J35/065 , H01J35/12 , H01J2235/068 , H01J2235/1262
摘要： A distributed X-ray source (3) and an imaging system (1) comprising such an X-ray source (3) are proposed. The X-ray source (3) comprises an electron beam source arrangement (19) and an anode arrangement (17). The electron beam source arrangement (19) is adapted to emit electron beams (24) towards at least two locally distinct focal spots (27) on the anode arrangement (17). Therein, the X-ray source is adapted for displacing the anode arrangement (17) with respect to the electron beam source arrangement (19). While the provision of a plurality of focal spots allows acquisition of projection images under different projection angles thereby allowing reconstruction of three-dimensional X-ray images e.g. in tomosynthesis application, a displacement motion of the anode arrangement (17) with respect to the electron beam source arrangement (19) may allow for distributed heat flux to the anode arrangement thereby possibly reducing cooling requirements.
摘要翻译： 提出了包括这样的X射线源（3）的分布式X射线源（3）和成像系统（1）。 X射线源（3）包括电子束源装置（19）和阳极装置（17）。 电子束源装置（19）适于向阳极装置（17）上的至少两个局部不同的焦点（27）发射电子束（24）。 其中，X射线源适于使阳极装置（17）相对于电子束源装置（19）移位。 虽然提供多个焦点允许在不同的投影角度获取投影图像，从而允许重建三维X射线图像，例如， 在层析合成应用中，阳极布置（17）相对于电子束源装置（19）的位移运动可以允许分布的热通量到阳极布置，从而可能降低冷却要求。
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公开(公告)号：US20120057669A1
公开(公告)日：2012-03-08
申请号：US13266478
申请日：2010-05-12
申请人： Gereon Vogtmeier , Wolfgang Chrost
发明人： Gereon Vogtmeier , Wolfgang Chrost
CPC分类号： H01J35/06 , H01J35/14 , H01J2235/062 , H01J2235/068 , H01J2235/086
摘要： The invention relates to an X-ray source (100) with an electron-beam-generator (120) for generating electron beams (B, B′) that converge towards a target (110). Thus the spatial distribution of X-ray focal spots (T, T′) on the target (110) can be made denser than the distribution of electron sources (121), wherein the latter is usually dictated by hardware limitations. The electron-beam-generator (120) may particularly comprise a curved emitter device (140) with a matrix of CNT based electron emitters (141) and an associated electrode device (130).
摘要翻译： 本发明涉及一种具有用于产生朝向目标（110）会聚的电子束（B，B'）的电子束发生器（120）的X射线源（100）。 因此，靶（110）上的X射线焦点（T，T'）的空间分布可以比电子源（121）的分布更致密，其中后者通常由硬件限制来决定。 电子束发生器（120）可以特别地包括具有基于CNT的电子发射器（141）和相关联的电极装置（130）的矩阵的弯曲发射器装置（140）。
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9.发明申请公开(公告)号：US20100020938A1
公开(公告)日：2010-01-28
申请号：US12518289
申请日：2007-12-07
申请人： Lothar Koch , Wolfgang Chrost , Horst Roloff
发明人： Lothar Koch , Wolfgang Chrost , Horst Roloff
IPC分类号： H01J35/14
摘要： A device and method for X-ray tube focal spot parameter control, wherein stray electrons are detected in an X-ray tube. The detected electrons lead to a signal having a characteristic pattern. The characteristic pattern may be evaluated, and based on the evaluation a controlling signal may be outputted so that a fast and exact controlling of the operating parameters of an X-ray tube may be carried out based on the detected stray electrons.
摘要翻译： 用于X射线管焦斑参数控制的装置和方法，其中在X射线管中检测杂散电子。 检测到的电子导致具有特征图案的信号。 可以评估特征图案，并且基于评估，可以输出控制信号，使得可以基于检测到的杂散电子快速且精确地控制X射线管的操作参数。
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10.发明申请公开(公告)号：US20120300901A1
公开(公告)日：2012-11-29
申请号：US13393835
申请日：2010-09-13
申请人： Astrid Lewalter , Rainer Pietig , Wolfgang Chrost
发明人： Astrid Lewalter , Rainer Pietig , Wolfgang Chrost
CPC分类号： H01J35/28 , A61B6/025 , A61B6/4028 , A61B6/4488 , A61B6/502 , A61B6/508 , H01J35/065 , H01J35/12 , H01J2235/068 , H01J2235/1262
摘要： A distributed X-ray source (3) and an imaging system (1) comprising such an X-ray source (3) are proposed. The X-ray source (3) comprises an electron beam source arrangement (19) and an anode arrangement (17). The electron beam source arrangement (19) is adapted to emit electron beams (24) towards at least two locally distinct focal spots (27) on the anode arrangement (17). Therein, the X-ray source is adapted for displacing the anode arrangement (17) with respect to the electron beam source arrangement (19). While the provision of a plurality of focal spots allows acquisition of projection images under different projection angles thereby allowing reconstruction of three-dimensional X-ray images e.g. in tomosynthesis application, a displacement motion of the anode arrangement (17) with respect to the electron beam source arrangement (19) may allow for distributed heat flux to the anode arrangement thereby possibly reducing cooling requirements.
摘要翻译： 提出了包括这样的X射线源（3）的分布式X射线源（3）和成像系统（1）。 X射线源（3）包括电子束源装置（19）和阳极装置（17）。 电子束源装置（19）适于向阳极装置（17）上的至少两个局部不同的焦点（27）发射电子束（24）。 其中，X射线源适于使阳极装置（17）相对于电子束源装置（19）移位。 虽然提供多个焦点允许在不同的投影角度获取投影图像，从而允许重建三维X射线图像，例如， 在层析合成应用中，阳极布置（17）相对于电子束源装置（19）的位移运动可以允许分布的热通量到阳极布置，从而可能降低冷却要求。
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