X-ray analyzer having multiple excitation energy bands produced using multi-material x-ray tube anodes and monochromating optics
    72.
    发明授权
    X-ray analyzer having multiple excitation energy bands produced using multi-material x-ray tube anodes and monochromating optics 有权
    具有使用多材料X射线管阳极和单色光学器件产生的多个激发能带的X射线分析仪

    公开(公告)号:US09449780B2

    公开(公告)日:2016-09-20

    申请号:US14381023

    申请日:2013-02-27

    Inventor: Zewu Chen

    Abstract: An x-ray tube includes a target on which electrons impinge to form a diverging x-ray beam. The target has a surface formed from first and second target materials, each tailored to emit a respective x-ray energy profile. A first x-ray optic may be provided for directing the beam toward the sample spot, the first x-ray optic monochromating the diverging x-ray beam to a first energy from the energy emitted by the first target material; and a second x-ray optic may be provided, for directing the beam toward the sample spot, the second x-ray optic monochromating the diverging x-ray beam to a second energy from the energy emitted by the second target material. Fluorescence from the sample spot induced by the first and second monochromated energies is used to measure the concentration of at least one element in the sample, or separately measure elements in a coating and underlying substrate.

    Abstract translation: X射线管包括靶,电子撞击在靶上以形成发散的X射线束。 目标具有由第一和第二目标材料形成的表面,每个被定制以发射相应的x射线能量分布。 可以提供第一x射线光学器件用于将光束引导到样品点,第一x射线光学器件使发散的X射线束从第一靶材料发射的能量单色为第一能量; 并且可以提供第二x射线光学器件,用于将光束引导到样品点,第二x射线光学器件将发散的X射线束单色为由第二靶材料发射的能量的第二能量。 使用由第一和第二单色能量诱导的样品点的荧光来测量样品中至少一种元素的浓度,或单独测量涂层和下面的底物中的元素。

    X-RAY ANALYZER HAVING MULTIPLE EXCITATION ENERGY BANDS PRODUCED USING MULTI-MATERIAL X-RAY TUBE ANODES AND MONOCHROMATING OPTICS
    74.
    发明申请
    X-RAY ANALYZER HAVING MULTIPLE EXCITATION ENERGY BANDS PRODUCED USING MULTI-MATERIAL X-RAY TUBE ANODES AND MONOCHROMATING OPTICS 有权
    具有使用多种X射线管阳极和单色光学元件生产的多种激发能量的X射线分析仪

    公开(公告)号:US20150043713A1

    公开(公告)日:2015-02-12

    申请号:US14381023

    申请日:2013-02-27

    Inventor: Zewu Chen

    Abstract: An x-ray tube includes a target on which electrons impinge to form a diverging x-ray beam. The target has a surface formed from first and second target materials, each tailored to emit a respective x-ray energy profile. A first x-ray optic may be provided for directing the beam toward the sample spot, the first x-ray optic monochromating the diverging x-ray beam to a first energy from the energy emitted by the first target material; and a second x-ray optic may be provided, for directing the beam toward the sample spot, the second x-ray optic monochromating the diverging x-ray beam to a second energy from the energy emitted by the second target material. Fluorescence from the sample spot induced by the first and second monochromated energies is used to measure the concentration of at least one element in the sample, or separately measure elements in a coating and underlying substrate.

    Abstract translation: X射线管包括靶,电子撞击在靶上以形成发散的X射线束。 目标具有由第一和第二目标材料形成的表面,每个被定制以发射相应的x射线能量分布。 可以提供第一x射线光学器件用于将光束引导到样品点,第一x射线光学器件使发散的X射线束从第一靶材料发射的能量单色为第一能量; 并且可以提供第二x射线光学器件,用于将光束引导到样品点,第二x射线光学器件将发散的X射线束单色为由第二靶材料发射的能量的第二能量。 使用由第一和第二单色能量诱导的样品点的荧光来测量样品中至少一种元素的浓度,或单独测量涂层和下面的底物中的元素。

    X-RAY EMITTING TARGET AND X-RAY EMITTING DEVICE
    75.
    发明申请
    X-RAY EMITTING TARGET AND X-RAY EMITTING DEVICE 有权
    X射线发射目标和X射线发射装置

    公开(公告)号:US20140112450A1

    公开(公告)日:2014-04-24

    申请号:US14124216

    申请日:2012-05-28

    Abstract: An X-ray emitting target including a diamond substrate, a first layer disposed on the diamond substrate and including a first metal, and a second layer disposed on the first layer and including a second metal whose atomic number is 42 or more and which has a thermal conductivity higher than that of the first metal. Carbide of the first metal is present at a boundary between the diamond substrate and the first layer. The target is prevented from overheating, so that output variation due to rising temperature is suppressed. Thus it is possible to emit stable and high output X-rays.

    Abstract translation: 一种X射线发射靶,包括金刚石衬底,设置在金刚石衬底上并包括第一金属的第一层和设置在第一层上的第二层,并且包括原子序数为42以上的第二金属, 导热系数高于第一金属。 第一金属的硬质合金存在于金刚石基底和第一层之间的边界处。 防止目标过热,从而抑制由温度升高引起的输出变化。 因此,可以发出稳定且高输出的X射线。

    X-ray target assembly and methods for manufacturing same
    77.
    发明授权
    X-ray target assembly and methods for manufacturing same 有权
    X射线靶组件及其制造方法

    公开(公告)号:US08059785B2

    公开(公告)日:2011-11-15

    申请号:US11851333

    申请日:2007-09-06

    Abstract: The x-ray target assemblies have an oxide dispersion strengthened (ODS) refractory metal alloy substrate that is bonded to a carbon-containing heat sink. The x-ray target assemblies have excellent bonding between the substrate and the heat sink. The improved bonding is achieved by placing an oxide-free barrier layer between the ODS metal substrate and the heat sink. The oxide-free barrier layer minimizes or eliminates chemical reactions that would otherwise be possible between the dispersed oxides and the carbon-based heat sink during the manufacturing process. Preventing these undesired reactions while manufacturing the x-ray target assembly yields a device with improved bonding between the heat sink and the substrate, compared to devices manufactured without the barrier layer.

    Abstract translation: X射线靶组件具有结合到含碳散热器的氧化物分散强化(ODS)难熔金属合金基底。 x射线靶组件在衬底和散热器之间具有优异的接合。 通过在ODS金属基板和散热器之间放置无氧化物阻挡层来实现改进的接合。 无氧化物阻挡层在制造过程中最小化或消除了在分散的氧化物和碳基散热器之间可能的化学反应。 与制造没有阻挡层的装置相比,在制造x射线靶组件时防止这些不期望的反应产生了具有改进的散热器和衬底之间的结合的装置。

    Two-step brazed X-ray target assembly
    78.
    发明授权
    Two-step brazed X-ray target assembly 失效
    两步钎焊X射线靶组件

    公开(公告)号:US06421423B1

    公开(公告)日:2002-07-16

    申请号:US09966788

    申请日:2001-09-28

    Applicant: John M. Warren

    Inventor: John M. Warren

    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。

    Rotating anode with graphite for X-ray tube
    79.
    发明授权
    Rotating anode with graphite for X-ray tube 失效
    用石墨旋转阳极用于X射线管

    公开(公告)号:US4799250A

    公开(公告)日:1989-01-17

    申请号:US3142

    申请日:1987-01-14

    CPC classification number: H01J35/108 H01J2235/084

    Abstract: The invention pertains to a rotating anode with graphite for an X-ray tube in which the quality of the bond with the graphite is considerably improved in comparison with the prior art, through the use of a bonder element comprising beryllium.

    Abstract translation: 本发明涉及一种具有用于X射线管的石墨的旋转阳极,其中与现有技术相比,通过使用包含铍的粘合剂元件,与石墨的粘合质量显着提高。

    Composite rotary anode for X-ray tube and process for preparing the
composite
    80.
    发明授权
    Composite rotary anode for X-ray tube and process for preparing the composite 失效
    用于X射线管的复合旋转阳极和用于制备复合材料的方法

    公开(公告)号:US4700882A

    公开(公告)日:1987-10-20

    申请号:US918455

    申请日:1986-10-14

    CPC classification number: H01J35/108 H01J2235/084

    Abstract: A method for the diffusion bonding of a graphite member to a metallic surface as part of a composite rotary anode for an X-ray tube is set forth. In the completed structure a compound laminate separating and metallurgically bonded to the graphite member and to the metallic surface consists of, in sequence, a layer comprising carbide of vanadium and of a metal selected from the group consisting of of molybdenum and tungsten, a layer of metal selected from the group consisting of vanadium and vanadium alloys, a zone of interdiffused metals comprising platinum and vanadium and then a continuous layer comprising platinum or platinum alloy.

    Abstract translation: 阐述了作为X射线管的复合旋转阳极的一部分将石墨构件扩散接合到金属表面的方法。 在完成的结构中,分离和冶金结合到石墨构件和金属表面上的复合层压体依次包括由钒和选自钼和钨的金属组成的层, 选自钒和钒合金的金属,包含铂和钒的相互扩散的金属区域,然后是包含铂或铂合金的连续层。

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