公开(公告)号：US06390875B1

公开(公告)日：2002-05-21

申请号：US09535019

申请日：2000-03-24

Applicant: John M. Warren ,  Michael Price ,  Martin W. Plutowski

Inventor： John M. Warren ,  Michael Price ,  Martin W. Plutowski

IPC: H01J3510

CPC classification number: H01J35/04 ,  H01J2235/10 ,  H01J2235/12 ,  H01J2235/1237

Abstract: A method is provided for enhancing heat transfer within an X-ray vacuum tube, from a hot component such as the rotating anode assembly to a cooler component such as the metal tube housing, by increasing surface emissivity of respective components. The method comprises the steps of fabricating each component from an alloy containing a specified minimum amount of chromium, and then implementing a first heating operation, wherein a fabricated component is heated in a dry hydrogen atmosphere for a first specified time period. Thereafter, a second heating operation is implemented, wherein the fabricated component is heated in a wet hydrogen atmosphere for a second specified time period. This procedure forms a refractory chromium oxide coating on the component that exhibits high absorption in the NIR region of the electromagnetic spectrum.

Abstract translation: 提供了一种通过增加各个部件的表面发射率来增强X射线真空管内的热传递的方法，从诸如旋转阳极组件的热部件到诸如金属管壳体的较冷部件。 该方法包括以下步骤：从含有规定的最小量的铬的合金制造每个组分，然后实施第一加热操作，其中将制造的组分在干燥氢气氛中加热第一特定时间段。 此后，实施第二加热操作，其中制造的部件在湿氢气氛中加热第二特定时间段。 该方法在组分上形成耐火铬氧化物涂层，其在电磁光谱的NIR区域中表现出高吸收。

公开(公告)号：US06144720A

公开(公告)日：2000-11-07

申请号：US143121

申请日：1998-08-28

Applicant: Frank D. DeCou ,  Paul M. Xu ,  Robert J. Zielinski

Inventor： Frank D. DeCou ,  Paul M. Xu ,  Robert J. Zielinski

IPC: H01J35/10

CPC classification number: H01J35/105 ,  H01J2235/1033 ,  H01J2235/1237

Abstract: A high energy x-ray tube includes an evacuated chamber (12) containing a rotor (34) which rotates an anode (10) in the path of a stream of electrons (A) to generate an x-ray beam (B) and heat. The rotor includes an armature (36) which rotates around a stationary rotor support (40). An emissive coating is formed on the rotor by depositing an iron Fe.sub.3 O.sub.4 oxide plasma onto the surface of the armature. Heat generated in the anode during the production of x-rays is conducted through the anode and the rotor to the emissive coating which irradiates the heat across vacuum, thereby increasing the lifetime of the tube. A stator (32) generates an oscillating magnetic field which induces opposing fields in the Fe.sub.3 O.sub.4 coating to create the rotational forces to rotate the anode.

Abstract translation: 高能量X射线管包括：真空室（12），其包含使电子（A）的路径中的阳极（10）旋转以产生X射线束（B）的转子（34）和热量 。 转子包括围绕固定转子支撑件（40）旋转的电枢（36）。 通过在电枢的表面上沉积铁Fe 3 O 4氧化物等离子体，在转子上形成发光涂层。 在生产X射线期间在阳极中产生的热量通过阳极和转子传导到发射涂层，其通过真空照射热量，从而增加管的寿命。 定子（32）产生振荡磁场，其在Fe 3 O 4涂层中引起相反的场，以产生旋转力来旋转阳极。

公开(公告)号：US20090052627A1

公开(公告)日：2009-02-26

申请号：US12039737

申请日：2008-02-29

Applicant: Madhusudhana T. Subraya ,  Michael Scott Hebert ,  Gregory Alan Steinlage

Inventor： Madhusudhana T. Subraya ,  Michael Scott Hebert ,  Gregory Alan Steinlage

IPC: H01J35/10

CPC classification number: H01J35/16 ,  H01J2235/1216 ,  H01J2235/1237 ,  H01J2235/125 ,  H01J2235/1262 ,  H01J2235/1283 ,  H01J2235/168

Abstract: A system and method for collecting backscattered electrons within a substantially evacuated vessel containing both an electron-emitting cathode assembly and an electron-attracting anode assembly. The system and method comprises an electron collector assembly including a first plate, a second plate, an internal member, a fluid inlet, and a fluid outlet. The first plate is mounted within the vessel closest to the anode assembly. The second plate is mounted within the vessel closest to the cathode assembly. The internal member is positioned between the first plate and the second plate, and includes an internal conduit for conveying a heat absorbing cooling fluid therethrough.

Abstract translation: 一种在包含电子发射阴极组件和吸电子阳极组件的基本抽空的容器内收集反向散射电子的系统和方法。 该系统和方法包括电子收集器组件，其包括第一板，第二板，内部构件，流体入口和流体出口。 第一板安装在最靠近阳极组件的容器内。 第二板安装在最靠近阴极组件的容器内。 内部构件位于第一板和第二板之间，并且包括用于通过其传送吸热冷却流体的内部导管。

公开(公告)号：US20080019481A1

公开(公告)日：2008-01-24

申请号：US11844699

申请日：2007-08-24

Applicant: Jean-Pierre Moy

Inventor： Jean-Pierre Moy

IPC: H05G2/00 ,  G21G4/00 ,  H01J35/00

CPC classification number: H01J35/105 ,  H01J35/106 ,  H01J35/20 ,  H01J2235/081 ,  H01J2235/084 ,  H01J2235/088 ,  H01J2235/1229 ,  H01J2235/1237 ,  H01J2235/1258 ,  H01J2235/1262

Abstract: This monochromatic X-ray source comprises a target in particular made from a material incorporating emitting ions comprising an element, the said atoms being excited by electron bombardment, essentially by the electrons located on the K layers of the said atoms. The target material is generally in the solid state and it is held together by means of structuring atoms representing one or more elements and bound to the emitting atoms, the said structuring atoms having an absorption coefficient equal to or lower than 2.3 μm−1 for the X-rays emitted by the emitting atoms.

Abstract translation: 该单色X射线源包括特别由包含发射包含元素的离子的材料制成的靶，所述原子基本上由位于所述原子的K层上的电子被电子轰击激发。 目标材料通常为固态，并且通过构成表示一个或多个元素的原子并结合到发光原子而保持在一起，所述结构原子具有等于或低于2.3μm的吸收系数， 1发射原子发射的X射线。

公开(公告)号：US5159619A

公开(公告)日：1992-10-27

申请号：US760262

申请日：1991-09-16

Applicant: Mark G. Benz ,  Melvin R. Jackson ,  Robert J. Zabala ,  Karen A. Lou ,  Thomas C. Tiearney, Jr.

Inventor： Mark G. Benz ,  Melvin R. Jackson ,  Robert J. Zabala ,  Karen A. Lou ,  Thomas C. Tiearney, Jr.

IPC: H01J35/10

CPC classification number: H01J35/105 ,  H01J2235/1204 ,  H01J2235/1237 ,  H01J2235/1241

Abstract: A high performance x-ray tube rotating target having a reactive barier layer between the substrate and the emissive coating and, if desired, a protective layer of molybdenum between the reactive barrier and the emissive coating is disclosed.

Abstract translation: 公开了一种高性能X射线管旋转靶，其具有在基底和发射涂层之间的反应性重力层，并且如果需要，在反应性屏障和发射涂层之间具有钼的保护层。

公开(公告)号：US09202664B2

公开(公告)日：2015-12-01

申请号：US13651282

申请日：2012-10-12

Applicant: VARIAN MEDICAL SYSTEMS, INC.

Inventor： Jeffrey Steven Wassom ,  Dennis H. Runnoe ,  Robert Clark Treseder

IPC: H01J35/10

CPC classification number: H01J35/106 ,  H01J2235/1237 ,  H01J2235/125 ,  H01J2235/1283

Abstract: Finned anode. In one example embodiment, an anode suitable for use in an x-ray tube includes a hub, a front side, and a target surface disposed on the front side. The hub is configured to attach to a bearing assembly and the front side substantially faces the bearing assembly. The anode further includes a rear side substantially opposite the front side, as well as two or more annular anode fins extending from the rear side. The annular anode fins are positioned radially outward from the hub to an outer periphery of the rear side.

Abstract translation: 翅片式阳极。 在一个示例实施例中，适用于X射线管的阳极包括设置在前侧的轮毂，前侧和目标表面。 毂被构造成附接到轴承组件，并且前侧基本上面向轴承组件。 阳极还包括与前侧大致相对的后侧，以及从后侧延伸的两个或更多个环形阳极翅片。 环形阳极翅片从轮毂径向向外定位到后侧的外周。

公开(公告)号：US09177754B2

公开(公告)日：2015-11-03

申请号：US13763623

申请日：2013-02-09

Applicant: Varian Medical Systems, Inc.

Inventor： Wayne Hansen ,  Kasey Greenland ,  Todd Parker

IPC: H01J35/10 ,  H01J35/16 ,  H01J35/06

CPC classification number: H01J35/16 ,  H01J35/06 ,  H01J2235/1212 ,  H01J2235/1237

Abstract: An x-ray tube includes an evacuated envelope, and a cathode assembly and an anode assembly both disposed in the evacuated envelope. The cathode assembly includes a cathode shield, a supporting body disposed inside the cathode shield, and an electron source attached to the supporting body and partially enclosed by the cathode shield. The anode assembly includes a target configured to produce x-rays upon impingement by electrons produced by the electron source. The cathode shield comprises a shield base material and a layer over at least a portion of the base material. The layer comprises an emissivity enhancer having an emissivity greater than the emissivity of the shield base material. The layer may comprise an emissive coating applied on the portion of the base material. Alternatively, the layer may comprise a greened surface formed by a greening process.

Abstract translation: x射线管包括抽真空的外壳，以及阴极组件和阳极组件，两者都设置在抽真空的外壳中。 阴极组件包括阴极屏蔽件，设置在阴极屏蔽体内部的支撑体，以及附着到支撑体上并被阴极屏蔽部分包围的电子源。 阳极组件包括被配置为在由电子源产生的电子撞击时产生X射线的靶。 阴极屏蔽包括屏蔽基材和至少部分基材的层。 该层包括发射率增强剂，其发射率大于屏蔽基材的发射率。 该层可以包括施加在基材的部分上的发射涂层。 或者，该层可以包括通过绿化工艺形成的绿化表面。

公开(公告)号：US20140105366A1

公开(公告)日：2014-04-17

申请号：US13651282

申请日：2012-10-12

Applicant: VARIAN MEDICAL SYSTEMS, INC.

Inventor： Jeffrey Steven Wassom ,  Dennis H. Runnoe ,  Robert Clark Treseder

IPC: H01J35/10

CPC classification number: H01J35/106 ,  H01J2235/1237 ,  H01J2235/125 ,  H01J2235/1283

Abstract: Finned anode. In one example embodiment, an anode suitable for use in an x-ray tube includes a hub, a front side, and a target surface disposed on the front side. The hub is configured to attach to a bearing assembly and the front side substantially faces the bearing assembly. The anode further includes a rear side substantially opposite the front side, as well as two or more annular anode fins extending from the rear side. The annular anode fins are positioned radially outward from the hub to an outer periphery of the rear side.

Abstract translation: 翅片式阳极。 在一个示例实施例中，适用于X射线管的阳极包括设置在前侧的轮毂，前侧和目标表面。 毂被构造成附接到轴承组件，并且前侧基本上面向轴承组件。 阳极还包括与前侧大致相对的后侧，以及从后侧延伸的两个或更多个环形阳极翅片。 环形阳极翅片从轮毂径向向外定位到后侧的外周。

公开(公告)号：US5150397A

公开(公告)日：1992-09-22

申请号：US756417

申请日：1991-09-09

Applicant: Michael J. Randzaao

Inventor： Michael J. Randzaao

IPC: H01J35/10

CPC classification number: H01J35/105 ,  H01J2235/1204 ,  H01J2235/1237

Abstract: A high thermal emittance coating for an x-ray tube anode target which permits broad application parameters and a stable and smooth coating. The coating is composed of ZrO.sub.2 present in an amount of 8% to 20% by weight and Al.sub.2 O.sub.3 and TiO.sub.2 present in an amount of 92% to 80% by weight with the Al.sub.2 O.sub.3 and TiO.sub.2 being present in a ratio in the range of 4 to 1. A preferable coating is composed of about 10% by weight of ZrO.sub.2 and 90% by weight of Al.sub.2 O.sub.3 and TiO.sub.2.

Abstract translation: 用于X射线管阳极靶的高热辐射涂层，其允许广泛的应用参数和稳定和光滑的涂层。 该涂层由存在量为8重量％至20重量％的Al 2 O 3和TiO 2组成，其中Al 2 O 3和TiO 2的含量为92重量％至80重量％，Al 2 O 3和TiO 2的比例为4至 优选的涂层由约10重量％的ZrO 2和90重量％的Al 2 O 3和TiO 2组成。

公开(公告)号：US20140226792A1

公开(公告)日：2014-08-14

申请号：US13763623

申请日：2013-02-09

Applicant: VARIAN MEDICAL SYSTEMS, INC.

Inventor： Wayne Hansen ,  Kasey Greenland ,  Todd Parker

IPC: H01J35/16

CPC classification number: H01J35/16 ,  H01J35/06 ,  H01J2235/1212 ,  H01J2235/1237

Abstract: An x-ray tube includes an evacuated envelope, and a cathode assembly and an anode assembly both disposed in the evacuated envelope. The cathode assembly includes a cathode shield, a supporting body disposed inside the cathode shield, and an electron source attached to the supporting body and partially enclosed by the cathode shield. The anode assembly includes a target configured to produce x-rays upon impingement by electrons produced by the electron source. The cathode shield comprises a shield base material and a layer over at least a portion of the base material. The layer comprises an emissivity enhancer having an emissivity greater than the emissivity of the shield base material. The layer may comprise an emissive coating applied on the portion of the base material. Alternatively, the layer may comprise a greened surface formed by a greening process.

Abstract translation: x射线管包括抽真空的外壳，以及阴极组件和阳极组件，两者都设置在抽真空的外壳中。 阴极组件包括阴极屏蔽件，设置在阴极屏蔽体内部的支撑体，以及附着到支撑体上并被阴极屏蔽部分包围的电子源。 阳极组件包括被配置为在由电子源产生的电子撞击时产生X射线的靶。 阴极屏蔽包括屏蔽基材和至少部分基材的层。 该层包括发射率增强剂，其发射率大于屏蔽基材的发射率。 该层可以包括施加在基材的部分上的发射涂层。 或者，该层可以包括通过绿化工艺形成的绿化表面。