X-RAY TUBE WITH ADJUSTABLE ELECTRON BEAM
    11.
    发明申请
    X-RAY TUBE WITH ADJUSTABLE ELECTRON BEAM 有权
    带可调电子束的X射线管

    公开(公告)号:US20140169530A1

    公开(公告)日:2014-06-19

    申请号:US13718672

    申请日:2012-12-18

    CPC classification number: H01J35/14 H01J35/045

    Abstract: An X-ray tube assembly is provided including an emitter configured to emit an electron beam, an emitter focusing electrode, an extraction electrode, and a downstream focusing electrode. The emitter focusing electrode is disposed proximate to the emitter and outward of the emitter in an axial direction. The extraction electrode is disposed downstream of the emitter and the emitter focusing electrode. The extraction electrode has a negative bias voltage setting at which the extraction electrode has a negative bias voltage with respect to the emitter. The downstream focusing electrode is disposed downstream of the extraction electrode, and has a positive bias voltage with respect to the emitter. When the extraction electrode is at the negative bias voltage setting, the electron beam is emitted from an emission area that is smaller than a maximum emission area from which electrons may be emitted.

    Abstract translation: 提供了包括发射电子束的发射极,发射极聚焦电极,引出电极和下游聚焦电极的X射线管组件。 发射极聚焦电极在轴向方向上靠近发射极和发射极的外侧设置。 引出电极设置在发射极和发射极聚焦电极的下游。 提取电极具有负偏置电压设置,在该设置下,引出电极相对于发射极具有负偏置电压。 下游聚焦电极设置在引出电极的下游,并且相对于发射极具有正偏置电压。 当提取电极处于负偏置电压设置时,电子束从小于可从其发射电子的最大发射区域的发射区域发射。

    Systems and methods for electron beam focusing in electron beam additive manufacturing

    公开(公告)号:US12148592B2

    公开(公告)日:2024-11-19

    申请号:US18497508

    申请日:2023-10-30

    Abstract: A system for melting, sintering, or heat treating a material is provided. The system includes a cathode, an anode, and a focus coil assembly having a quadrupole magnet. The quadrupole magnet includes four poles and a yoke. The four poles are spaced apart and surround a beam cavity. Each of the four poles includes a pole face proximate the beam cavity and an end opposite the pole face. The first and third poles are aligned along an x-axis and configured to have a first magnetic polarity at their respective pole faces and a second magnetic polarity opposite the first magnetic polarity at their respective ends. The second and fourth poles are aligned along a y-axis and configured to have the second magnetic polarity at their respective pole faces and the first magnetic polarity at their respective ends. The yoke surrounds the poles and is coupled to the poles.

    APPARATUS AND METHOD FOR INSPECTING INTEGRITY OF A MULTI-BARRIER WELLBORE

    公开(公告)号:US20190063208A1

    公开(公告)日:2019-02-28

    申请号:US15688102

    申请日:2017-08-28

    CPC classification number: G01V5/12 E21B47/10 G21K1/02

    Abstract: An apparatus for inspecting integrity of a multi-barrier wellbore is described. The apparatus includes at least one source to generate radiation to impinge a target volume of the wellbore. The apparatus includes a source collimator having a plurality of alternating blocking channels and passing channels to direct radiation to impinge the target volume, such that the radiation directed from each passing channel forms a plurality of field of views extending radially into the target volume. The apparatus further includes at least one detector to receive backscatter rays arising from each respective field of view from the plurality of field of views and to generate an image representative of an inspected portion of the wellbore. The apparatus is useful for inspecting very small volumes in the multiple barriers of the wellbore and determine the integrity of the wellbore based on the different densities in the image of the inspected portion.

    Flexible flat emitter for X-ray tubes

    公开(公告)号:US09953797B2

    公开(公告)日:2018-04-24

    申请号:US14867396

    申请日:2015-09-28

    CPC classification number: H01J35/06 H01J1/16 H01J9/042 H01J35/02 H01J35/32

    Abstract: A flat emitter configured for use in an X-ray tube is presented. The X-ray tube includes a first conductive section including a first terminal. Further, the X-ray tube includes a second conductive section including a second terminal. Also, the X-ray tube includes a third conductive section disposed between the first conductive section and the second conductive section, wherein the third conductive section is configured to emit electrons toward a determined focal spot, and wherein the third conductive section includes a plurality of slits subdividing the third conductive section into a winding track coupled to the first conductive section and the second conductive section, wherein at least two of the plurality of slits are interwound spirally to compose the winding track, and wherein the winding track is configured to expand and contract based on heat provided to the third conductive section.

    FLEXIBLE FLAT EMITTER FOR X-RAY TUBES

    公开(公告)号:US20170092456A1

    公开(公告)日:2017-03-30

    申请号:US14867396

    申请日:2015-09-28

    CPC classification number: H01J35/06 H01J1/16 H01J9/042 H01J35/02 H01J35/32

    Abstract: A flat emitter configured for use in an X-ray tube is presented. The X-ray tube includes a first conductive section including a first terminal. Further, the X-ray tube includes a second conductive section including a second terminal. Also, the X-ray tube includes a third conductive section disposed between the first conductive section and the second conductive section, wherein the third conductive section is configured to emit electrons toward a determined focal spot, and wherein the third conductive section includes a plurality of slits subdividing the third conductive section into a winding track coupled to the first conductive section and the second conductive section, wherein at least two of the plurality of slits are interwound spirally to compose the winding track, and wherein the winding track is configured to expand and contract based on heat provided to the third conductive section.

    GAS WELL INTEGRITY INSPECTION SYSTEM
    20.
    发明申请
    GAS WELL INTEGRITY INSPECTION SYSTEM 有权
    气体良好检测系统

    公开(公告)号:US20160061991A1

    公开(公告)日:2016-03-03

    申请号:US14470348

    申请日:2014-08-27

    CPC classification number: G01V5/145

    Abstract: A well integrity inspection system configured to inspect a well structure including multiple concentric layers. The well integrity inspection system includes an inspection probe positioned in the well structure. The inspection probe includes a plurality of excitation assemblies for transmitting a plurality of radiation emissions into the well structure. The plurality of excitation assemblies includes at least a neutron excitation assembly and an X-ray excitation assembly. The inspection probe also includes a plurality of detection assemblies configured to receive a plurality of backscatter radiation returns from the well structure. The plurality of detection assemblies includes at least a neutron detection assembly and an X-ray detection assembly. The well integrity inspection system further including a processor operatively coupled to the inspection probe. The processor is configured to determine a well integrity parameter of the well structure based on at least one of the plurality of backscatter radiation returns.

    Abstract translation: 一种良好完整性检查系统,其被配置为检查包括多个同心层的井结构。 井完整性检查系统包括位于井结构中的检查探针。 检查探针包括用于将多个辐射发射物传输到井结构中的多个激发组件。 多个激励组件至少包括中子激发组件和X射线激发组件。 检查探针还包括多个检测组件,其被配置为从井结构接收多个反向散射辐射返回。 多个检测组件至少包括中子检测组件和X射线检测组件。 井完整性检查系统还包括可操作地耦合到检查探针的处理器。 处理器被配置为基于多个反向散射辐射返回中的至少一个来确定井结构的井完整性参数。

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