公开(公告)号：US08509386B2

公开(公告)日：2013-08-13

申请号：US12816216

申请日：2010-06-15

Applicant: David S. K. Lee ,  John E. Postman

Inventor： David S. K. Lee ,  John E. Postman

IPC: H01J35/10 ,  H01J35/08

CPC classification number: H01J35/10 ,  H01J35/108 ,  H01J2235/084

Abstract: In one example, an x-ray target comprises a target track, a substrate, and an optional backing. The target track includes a base material and a grain growth inhibitor to reduce or prevent microstructure grain growth in the base material. The target track can be included as part of an x-ray tube anode, either of a rotary form or a stationary form.

Abstract translation: 在一个示例中，x射线靶包括目标轨迹，基底和可选的背衬。 目标轨道包括基材和晶粒生长抑制剂，以减少或防止基材中的微结构晶粒生长。 目标轨道可以被包括作为X射线管阳极的一部分，无论是旋转形式还是固定形式。

公开(公告)号：US08165269B2

公开(公告)日：2012-04-24

申请号：US12239536

申请日：2008-09-26

Applicant: David S. K. Lee ,  John E. Postman

Inventor： David S. K. Lee ,  John E. Postman

IPC: H01J35/08 ,  H01J35/10

CPC classification number: H01J35/26 ,  H01J35/08 ,  H01J2235/084

Abstract: In one example, an x-ray target comprises a substrate, a target core, and a target track. The substrate and target core are attached together utilizing a carbide layer and a braze layer.

Abstract translation: 在一个示例中，x射线靶包括衬底，目标芯和目标轨道。 利用碳化物层和钎焊层将衬底和靶芯附接在一起。

公开(公告)号：US08149992B2

公开(公告)日：2012-04-03

申请号：US12985631

申请日：2011-01-06

Applicant: Akihisa Nitta ,  Shinichi Yamamoto ,  Hiromichi Horie

Inventor： Akihisa Nitta ,  Shinichi Yamamoto ,  Hiromichi Horie

IPC: H01J35/10

CPC classification number: H01J35/08 ,  B23K35/001 ,  B23K35/325 ,  B32B15/01 ,  C22C16/00 ,  C22C27/02 ,  C22C27/04 ,  H01J35/10 ,  H01J2235/081 ,  H01J2235/083 ,  H01J2235/084 ,  H01J2235/085 ,  H01J2235/086 ,  H01J2235/088 ,  Y10T29/49826

Abstract: According to one embodiment, there is provided an X-ray tube target. The X-ray tube target has a structure in which a carbon base material is bonded with an Mo base material or Mo alloy base material with a joint layer. The joint layer includes an MoNbTi diffusion phase, an NbTi alloy phase, an Nb-rich phase and a ZrNb alloy phase when the ratios of components in the joint layer are detected by EPMA.

Abstract translation: 根据一个实施例，提供了一种X射线管靶。 X射线管靶具有碳基材料与Mo基材或具有接合层的Mo合金基材结合的结构。 当通过EPMA检测到接合层中的组分的比例时，接合层包括MoNbTi扩散相，NbTi合金相，Nb-富相和ZrNb合金相。

公开(公告)号：US20110103553A1

公开(公告)日：2011-05-05

申请号：US12985631

申请日：2011-01-06

Applicant: Akihisa NITTA ,  Shinichi YAMAMOTO ,  Hiromichi HORIE

Inventor： Akihisa NITTA ,  Shinichi YAMAMOTO ,  Hiromichi HORIE

IPC: H01J35/10 ,  H01J35/08 ,  B23P11/00

CPC classification number: H01J35/08 ,  B23K35/001 ,  B23K35/325 ,  B32B15/01 ,  C22C16/00 ,  C22C27/02 ,  C22C27/04 ,  H01J35/10 ,  H01J2235/081 ,  H01J2235/083 ,  H01J2235/084 ,  H01J2235/085 ,  H01J2235/086 ,  H01J2235/088 ,  Y10T29/49826

Abstract: According to one embodiment, there is provided an X-ray tube target. The X-ray tube target has a structure in which a carbon base material is bonded with an Mo base material or Mo alloy base material with a joint layer. The joint layer includes an MoNbTi diffusion phase, an NbTi alloy phase, an Nb-rich phase and a ZrNb alloy phase when the ratios of components in the joint layer are detected by EPMA.

Abstract translation: 根据一个实施例，提供了一种X射线管靶。 X射线管靶具有碳基材料与Mo基材或具有接合层的Mo合金基材结合的结构。 当通过EPMA检测到接合层中的组分的比例时，接合层包括MoNbTi扩散相，NbTi合金相，Nb-富相和ZrNb合金相。

公开(公告)号：US20020085678A1

公开(公告)日：2002-07-04

申请号：US09966788

申请日：2001-09-28

Inventor： John M. Warren

IPC: H01J035/10

CPC classification number: C04B37/026 ,  B23K35/32 ,  B23K35/325 ,  C04B2237/122 ,  C04B2237/363 ,  C04B2237/403 ,  C22C14/00 ,  H01J35/10 ,  H01J2235/084

Abstract: A joining method designed to minimize the temperature needed to obtain a high strength braze joint between a molybdenum alloy substrate and a graphite disk used in a rotating anode X-ray tube target used for computed tomography applications. The method consists of two separate brazing operations. The first brazing operation joins a thin molybdenum sheet to the graphite disk using a pure metal braze to form a plated graphite subassembly. The second brazing operation joins the plated graphite subassembly to the molybdenum alloy substrate using a highly specialized braze alloy having a melt temperature below the recrystallization temperature of said molybdenum alloy substrate and a remelt temperature after brazing above the recrystallization temperature of said molybdenum alloy substrate. This two step brazing reduces the probability of fracture in the graphite by maintaining the elevated temperature yield strength normally developed in forged molybdenum alloy substrates by avoiding the deleterious yield strength reduction associated with recrystallization of the molybdenum alloy substrate.

Abstract translation: 一种接合方法，其设计成使用于计算机断层成像应用的旋转阳极X射线管靶中使用的钼合金基板和石墨盘之间获得高强度钎焊接头所需的温度最小化。 该方法由两个单独的钎焊操作组成。 第一次钎焊操作使用纯金属钎焊将薄钼片连接到石墨盘上，以形成电镀石墨子组件。 第二钎焊操作使用熔融温度低于所述钼合金基板的再结晶温度的高度专业化的钎焊合金和在所述钼合金基板的再结晶温度之后的钎焊之后的熔融温度，将镀覆的石墨子组件连接到钼合金基板。 通过避免与钼合金基体的再结晶相关的有害的屈服强度降低，通过维持在锻造的钼合金基材中正常显现的升高的温度屈服强度，这两步钎焊降低了石墨中的断裂概率。

公开(公告)号：US6118853A

公开(公告)日：2000-09-12

申请号：US167523

申请日：1998-10-06

Applicant: William H. Hansen ,  Peter E. Loeffler

Inventor： William H. Hansen ,  Peter E. Loeffler

IPC: G21K5/08 ,  H01J35/08 ,  H01J35/10

CPC classification number: H01J35/108 ,  H01J2235/081 ,  H01J2235/083 ,  H01J2235/084 ,  H01J2235/088

Abstract: An x-ray transmission target assembly is disclosed. According to an aspect of the invention, an x-ray target assembly comprises an x-ray generating layer, a thermal buffer, and a support, wherein the thermal buffer is disposed between the x-ray generating layer and support. Another aspect of the invention is directed to a novel material for use as an x-ray generating layer in an x-ray target assembly.

Abstract translation: 公开了一种x射线透射目标组件。 根据本发明的一个方面，x射线靶组件包括x射线产生层，热缓冲器和支撑件，其中热缓冲器设置在x射线产生层和支撑件之间。 本发明的另一方面涉及用作x射线靶组件中的x射线产生层的新型材料。

公开(公告)号：US5259015A

公开(公告)日：1993-11-02

申请号：US882026

申请日：1992-05-13

Applicant: Hisanori Ohara ,  Hiromu Kawai ,  Shigehiko Takaoka ,  Yasuhiro Katoh

Inventor： Hisanori Ohara ,  Hiromu Kawai ,  Shigehiko Takaoka ,  Yasuhiro Katoh

IPC: H01J9/14 ,  C23C16/14 ,  H01J35/10

CPC classification number: H01J35/108 ,  C23C16/14 ,  H01J2235/084

Abstract: A rotary anode for use in an X-ray tube has a graphite substrate plate, an intermediate layer made of a metal that does not react with graphite, and an X-ray generating layer provided on the intermediate layer for generating X-rays when electron impact is applied. The intermediate layer is a rhenium film having an equiaxed grain structure. A method for manufacturing such a rotary anode is proposed. The method has the step of forming, on a graphite substrate plate, an intermediate layer of rhenium by subjecting a metallic chloride to the thermal decomposition CVD process at a substrate temperature of 1200.degree. C. or more. The method further has the step of forming, on the intermediate layer, an X-ray generating layer of tungsten or tungsten-rhenium alloy by subjecting a metallic fluoride to the hydrogen reduction thermal CVD process.

公开(公告)号：US5099506A

公开(公告)日：1992-03-24

申请号：US638256

申请日：1991-01-04

Applicant: Gerhard J. Van Der Kooi ,  Bernard J. P. Van Rheenen ,  Herman W. Pietersma

Inventor： Gerhard J. Van Der Kooi ,  Bernard J. P. Van Rheenen ,  Herman W. Pietersma

IPC: H01J35/10

CPC classification number: H01J35/108 ,  H01J2235/084

Abstract: An X-ray rotary anode (1) comprising a graphite carrier body (3) and a tungsten target layer (11) can withstand a high-temperature load when an intermediate layer is provided which is composed of a layer of silicon carbide (7) and a layer of titanium nitride (9).

公开(公告)号：US4972449A

公开(公告)日：1990-11-20

申请号：US495890

申请日：1990-03-19

Applicant: Kamleshwar Upadhya ,  Thomas C. Tiearney, Jr. ,  William F. Banholzer

Inventor： Kamleshwar Upadhya ,  Thomas C. Tiearney, Jr. ,  William F. Banholzer

IPC: H01J9/14 ,  H01J35/10

CPC classification number: H01J35/108 ,  H01J2235/084

Abstract: An x-ray tube target has improved heat dissipation by applying a layer of diamond between the focal track and the target body. The diamond layer can be applied directly to a graphite target body, a graphite disc covered with silicon carbide or to a disc composed of an molybdenum alloy such as TZM.

公开(公告)号：US4958364A

公开(公告)日：1990-09-18

申请号：US288562

申请日：1988-12-22

Applicant: Christine Guerin ,  Jean-Marie Penato ,  Yves Debrouwer

Inventor： Christine Guerin ,  Jean-Marie Penato ,  Yves Debrouwer

IPC: H01J35/10

CPC classification number: H01J35/108 ,  H01J2235/084

Abstract: A rotating anode for X-ray tube including a base body on which target is formed by the deposit of at least one layer of target material wherein said base body includes a first central section comprising at least to some extent a carbon-carbon composite material and a second part of monolithic graphite supporting target arranged at least partly at the periphery of the former with the two parts bound mechanically to one another by a means of interconnection, such as brazing at the junction point of the two parts.

Abstract translation: 一种用于X射线管的旋转阳极，其包括通过沉积至少一层目标材料而形成靶的基体，其中所述基体包括第一中心部分，该第一中心部分至少在一定程度上包含碳 - 碳复合材料， 整体式石墨支撑靶的第二部分至少部分地布置在前者的周边，其中两个部分通过互连的方式彼此机械地结合，例如在两个部分的连接点处的钎焊。