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    Multiple-position x-ray tube for diffractometer
    101.
    发明授权
    Multiple-position x-ray tube for diffractometer 有权
    用于衍射仪的多位置X射线管

    公开(公告)号：US07248672B2

    公开(公告)日：2007-07-24

    申请号：US11111497

    申请日：2005-04-21

    Applicant: Roger D. Durst ,  Bob Baoping He

    Inventor： Roger D. Durst ,  Bob Baoping He

    IPC: H01J35/00 ,  H05G1/02

    CPC classification number: H01J35/08 ,  G01N2223/204 ,  H01J35/18 ,  H01J35/24 ,  H01J2235/081

    Abstract: An x-ray source provides both a line focus output and a point focus output, and is mounted on a rotatable support to allow easy changing between the two. A housing has ports at different angular positions relative to an anode, and each port has an associated optic appropriate for an x-ray beam passing through that port. Three or four ports may also be used to allow for different types of beam conditioning. The different beam optics may also do conditioning based on wavelength, and the anode may be of a composite material to provide different wavelength ranges. The rotatable support may be manual or motorized, and a lockout mechanism may be used to ensure that only one port is active at a time. The support may also be located on a movable table that is movable in multiple perpendicular directions.

    Abstract translation: X射线源提供线路对焦输出和点对焦输出，并且安装在可旋转的支撑件上以允许在两者之间容易地变化。 壳体具有相对于阳极的不同角度位置处的端口，并且每个端口具有适合于穿过该端口的x射线束的相关联的光学元件。 也可以使用三个或四个端口来允许不同类型的光束调节。 不同的光束光学器件还可以基于波长进行调节，并且阳极可以是复合材料以提供不同的波长范围。 可旋转支撑件可以是手动的或机动的，并且可以使用锁定机构来确保一次只有一个端口是活动的。 支撑件也可以位于可在多个垂直方向上移动的可动台上。

    BONE MINERAL DENSITY ASSESSMENT USING MAMMOGRAPHY SYSTEM
    102.
    发明申请
    BONE MINERAL DENSITY ASSESSMENT USING MAMMOGRAPHY SYSTEM 失效
    使用妈妈系统的骨矿物质密度评估

    公开(公告)号：US20070153973A1

    公开(公告)日：2007-07-05

    申请号：US11614199

    申请日：2006-12-21

    Applicant: Zhimin Huo ,  Chang-Ying Yang ,  Mark Purdum

    Inventor： Zhimin Huo ,  Chang-Ying Yang ,  Mark Purdum

    IPC: G01N23/06 ,  G01B15/02

    CPC classification number: A61B6/4233 ,  A61B6/502 ,  A61B6/505 ,  A61B6/583 ,  G21K1/10 ,  H01J2235/081

    Abstract: A method and system for determining the bone mineral density of a body extremity. An image of a body extremity is acquired using a mammography x-ray system whereby a bone mineral density can be performed on the image. The system for determining the bone mineral density of a body extremity includes: a support for supporting the body extremity; a detector for capturing an image of the body extremity; and an x-ray source adapted to project an x-ray beam through the body extremity toward the detector, the x-ray source having a voltage of no more than about 45 kVp and having a target/filter combination of rhodium/rhodium, molybdenum/molybdenum, molybdenum/rhodium, or tungsten/rhodium.

    Abstract translation: 一种用于确定身体肢体的骨矿物质密度的方法和系统。 使用乳房X射线照相系统获得身体末端的图像，由此可以对图像执行骨矿物质密度。 用于确定身体末端骨矿物质密度的系统包括：用于支撑身体末端的支撑体; 用于捕获身体肢体的图像的检测器; 以及X射线源，其适于将X射线束通过身体末端投射到检测器，X射线源具有不超过约45kVp的电压并且具有铑/铑，钼的靶/过滤器组合 /钼，钼/铑或钨/铑。

    High quantum energy efficiency X-ray tube and targets
    103.
    发明申请
    High quantum energy efficiency X-ray tube and targets 有权
    高量子能效X射线管和靶

    公开(公告)号：US20050123097A1

    公开(公告)日：2005-06-09

    申请号：US10960445

    申请日：2004-10-07

    Applicant: Chia-Gee Wang

    Inventor： Chia-Gee Wang

    IPC: G21K5/00 ,  H01J35/08

    CPC classification number: H01J35/08 ,  H01J2235/081 ,  H01J2235/087 ,  H01J2235/088

    Abstract: The invention relates to targets for an X-ray transmission tube (9); to a high efficiency, high excitation energy X-ray transmission tube; to combinations of the targets and high efficiency X-ray transmission tubes; and applications for utilizing such X-ray tubes. The target comprises two or more different thin foils (1) or at least two foils of the same material but different foil thickness on separate areas of a substantially planar substrate which is substantially transparent to X-rays. The target may also comprise at least two different foils (2, 3) layered sequentially one of the other, wherein X-rays are produced when an electron beam impinges the foil closest to the source fo the electron beam; wherein the energy of the electron beam is selectively changed to produce X-rays of a least one preselected energy characteristic of at least one of the foils.

    Abstract translation: 本发明涉及X射线透射管（9）的靶。 以高效率，高激发能X射线传输管; 目标和高效X射线透射管的组合; 以及利用这种X射线管的应用。 目标包括两个或多个不同的薄箔（1）或至少两个相同材料的箔，但在基本上平坦的基底的对X射线基本透明的分开的区域上具有不同的箔厚度。 目标还可以包括至少两个不同的箔（2,3），其彼此分层地分层，其中当电子束撞击最靠近电子束的源的箔时，产生X射线; 其中电子束的能量被选择性地改变以产生至少一个箔的至少一个预选能量特性的X射线。

    Anode assembly for an x-ray tube
    105.
    发明申请
    Anode assembly for an x-ray tube 有权
    用于X射线管的阳极组件

    公开(公告)号：US20040165699A1

    公开(公告)日：2004-08-26

    申请号：US10371401

    申请日：2003-02-21

    Inventor： Thomas W. Rusch ,  Peter C. Smith ,  Steven D. Hansen ,  Paul A. Lovoi ,  Donald G. Pellinen

    IPC: H05H001/00

    CPC classification number: H01J35/08 ,  H01J35/32 ,  H01J2235/081 ,  H01J2235/087 ,  H01J2235/164

    Abstract: A miniature x-ray tube has an anode assembly capable of transmitting x-rays through the anode and over a wide angular range. The anode is in the shape of a cone or truncated cone with an axis on the x-ray tube frame axis, formed of low-Z material with high thermal conductivity for heat dissipation. A target material on the anode body is in a thin layer, which may be approximately 0.5 to 5 microns thick. In one embodiment a tube evacuation exhaust port at the tail end of the anode assembly forms a cavity for a getter, with a pinched-off tubulation at the end of the cavity.

    Abstract translation: 微型x射线管具有能够通过阳极透射x射线并且在宽角度范围内的阳极组件。 阳极呈圆锥形或截锥形，X射线管框架轴上具有轴，由具有高导热性的低Z材料形成，用于散热。 阳极体上的目标材料为薄层，其厚度可为约0.5至5微米。 在一个实施例中，在阳极组件的尾端处的排气排气口形成用于吸气剂的空腔，在空腔的端部处具有夹断的管道。

    Composite X-ray target
    106.
    发明授权
    Composite X-ray target 失效
    复合X射线靶

    公开(公告)号：US6390876B2

    公开(公告)日：2002-05-21

    申请号：US84684801

    申请日：2001-05-01

    Applicant: GEN ELECTRIC

    Inventor： BENZ MARK GILBERT ,  MUKIRA CHARLES GITAHI ,  RABER THOMAS ROBERT ,  MINAS CONSTANTINOS ,  STEINLAGE GREGORY ALAN ,  REZNIKOV GREGORY ,  HASZ WAYNE CHARLES

    IPC: H01J35/10 ,  H01J9/02

    CPC classification number: H01J35/108 ,  H01J2235/081 ,  H01J2235/083 ,  H01J2235/1241

    Abstract: An X-ray tube anode comprises a graphite ring, a target substrate applied onto the graphite ring and a target focal track applied onto the target substrate. The target focal track comprises a first refractory metal and the target substrate comprises a second refractory metal and at least one layer of a material that is characterized by characterized by a coefficient of thermal expansion (CTE) that is the same as the CTE of the target focal track or is intermediate between the CTE of the target focal track and the CTE of the substrate.

    Abstract translation: X射线管阳极包括石墨环，施加到石墨环上的目标基底和施加到目标基底上的目标焦点轨迹。 目标焦点轨道包括第一耐火金属，并且目标基底包括第二难熔金属和至少一层材料，其特征在于热膨胀系数（CTE）与靶的CTE相同 焦点轨迹或者在目标焦点轨迹的CTE和基底的CTE之间的中间。

    Target/stem connection for x-ray tube anode assemblies
    108.
    发明授权
    Target/stem connection for x-ray tube anode assemblies 失效
    x射线管阳极组件的靶/杆连接

    公开(公告)号：US5577093A

    公开(公告)日：1996-11-19

    申请号：US272063

    申请日：1994-07-08

    Applicant: Mark G. Benz ,  Melvin R. Jackson

    Inventor： Mark G. Benz ,  Melvin R. Jackson

    IPC: A61N5/10 ,  H01J35/10

    CPC classification number: H01J35/101 ,  A61N5/10 ,  H01J2235/081 ,  H01J2235/1013 ,  H01J2235/102

    Abstract: An improved high performance x-ray system having a rotating anode therein which includes an improved target/stem connection wherein at least about 40,000 x-ray scan-seconds are accomplished prior to tube failure due to anode assembly imbalance comprising a metallic target and a metal stem bonded to provide a composite rotating x-ray tube target is disclosed. An insert of an alloy, for example, tantalum alloy, is placed between the target layer and the stem and then bonded thereto to produce a composite x-ray tube target/stem having a high remelt temperature and bond strength which retains its balance throughout the manufacturing process and during x-ray tube operations is also disclosed.

    Abstract translation: 一种改进的高性能x射线系统，其中具有旋转阳极，其包括改进的靶/杆连接，其中在由于阳极组件不平衡而引起的管故障之前至少达到约40,000个x射线扫描秒，其包括金属靶和金属 公开了杆接合以提供复合旋转X射线管靶。 将合金（例如钽合金）的插入件放置在目标层和杆之间，然后结合到其上以产生具有高重熔温度和粘合强度的复合X射线管靶/杆，其在整个过程中保持其平衡 制造工艺和X射线管操作期间也被公开。

    LAMELLA-SHAPED TARGETS FOR X-RAY GENERATION
    110.
    发明申请
    LAMELLA-SHAPED TARGETS FOR X-RAY GENERATION 审中-公开

    公开(公告)号：US20190017942A1

    公开(公告)日：2019-01-17

    申请号：US16032889

    申请日：2018-07-11

    Applicant: FEI Company

    Inventor： Jorge Filevich

    IPC: G01N23/046 ,  H01J35/08

    CPC classification number: G01N23/046 ,  G01N2223/401 ,  G01N2223/419 ,  G21K7/00 ,  H01J35/08 ,  H01J2235/081 ,  H01J2235/086

    Abstract: A method and system are disclosed for producing an x-ray image of a sample using a lamella-shaped target to improve the usual tradeoff between imaging resolution and image acquisition time. A beam of electrons impacts the lamella-shaped target normal to the narrower dimension of the lamella which then determines the virtual source size along that axis. For low-energy x-ray generation, the small electron penetration depth parallel to the wider dimension of the lamella determines the virtual source size along that axis. Conductive cooling of the target is improved over post targets with the same imaging resolution. The lamella-shaped target is long enough to ensure that the electron beam does not impact the support structure which would degrade the imaging resolution. Target materials may be selected from the same metals used for bulk or post targets, including tungsten, molybdenum, titanium, scandium, vanadium, silver, or a refractory metal.

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