Planar filament with directed electron beam

    公开(公告)号:US11996258B2

    公开(公告)日:2024-05-28

    申请号:US18340690

    申请日:2023-06-23

    Applicant: Moxtek, Inc.

    Inventor: Eric Miller

    CPC classification number: H01J35/064

    Abstract: A planar filament 11f can include multiple materials to increase electron emission in desired directions and to suppress electron emission in undesired directions. The filament 11f can include a core-material CM between a top-material TM and a bottom-material BM. The top-material TM can have a lowest work function WFt; the bottom-material BM can have a highest work function WFb; and the core-material CM can have an intermediate work function WFc (WFt Wb). This shape makes it easier to coat the edges 31e with the bottom-material BM, because the edges 31e tilt toward and partially face the sputter target. This shape also helps direct more electrons to a center of the target 14, and reduce electron emission in undesired directions.

    X-Ray Source Voltage Shield
    22.
    发明申请

    公开(公告)号:US20220059308A1

    公开(公告)日:2022-02-24

    申请号:US17517058

    申请日:2021-11-02

    Applicant: Moxtek, Inc.

    Abstract: A shield around an x-ray tube, a voltage multiplier, or both can improve the manufacturing process by allowing testing earlier in the process and by providing a holder for liquid potting material. The shield can also improve voltage standoff. A shielded x-ray tube can be electrically coupled to a shielded power supply.

    Flowing-fluid X-ray induced ionic electrostatic dissipation

    公开(公告)号:US10524341B2

    公开(公告)日:2019-12-31

    申请号:US15407751

    申请日:2017-01-17

    Applicant: Moxtek, Inc.

    Abstract: An electrostatic dissipation device 10 can comprise an elongated enclosure 11 with a longitudinal axis 12. An x-ray source 13 can be oriented to emit x-rays 16 inside of and along the longitudinal axis 12. A fluid-flow device 14 can be oriented to cause fluid to flow across the x-ray source 13 then inside of and along the longitudinal axis 12, the fluid being ionized by the x-rays 16, forming ionized fluid, then out of the elongated enclosure through outlet opening(s) 15. The arrangement of the x-ray source 13 and the fluid-flow device 14 can allow (1) fluid from the fluid-flow device 14 to cool the x-ray source 13, and (2) ion generation along the length of the elongated enclosure 11.

    X-ray tube integral heatsink
    24.
    发明授权

    公开(公告)号:US10264659B1

    公开(公告)日:2019-04-16

    申请号:US16209639

    申请日:2018-12-04

    Applicant: Moxtek, Inc.

    Abstract: Improved heat transfer from an x-ray tube can be accomplished with a heatsink surrounding at least part of an x-ray tube. The heatsink can be electrically connected to an anode of the x-ray tube and can be an electrical current path. The heatsink can include a plurality of protrusions extending radially outward from the x-ray tube and can be a single, integral substance extending from an inner-surface of the heatsink to a distal-end of the protrusions.

    SPARK GAP X-RAY SOURCE
    26.
    发明申请
    SPARK GAP X-RAY SOURCE 有权
    SPARK GAP X射线源

    公开(公告)号:US20170040079A1

    公开(公告)日:2017-02-09

    申请号:US14739712

    申请日:2015-06-15

    Applicant: Moxtek, Inc.

    Abstract: In one embodiment, the invention includes an x-ray source having a cathode with (1) a pointed end or (2) an elongated blade oriented substantially transverse with respect to a longitudinal axis of the cathode. The pointed end or blade can be pointed towards an anode.In another embodiment, the invention includes an x-ray source having a window with an annular-shape, forming a hollow-ring. A convex portion of a half-ball-shape of an anode can extend into a hollow of the annular-shape of the window.

    Abstract translation: 在另一个实施例中,本发明包括具有环形窗口的X射线源,形成中空环。 阳极的半球形的凸部可以延伸到窗的环形的中空部。

    DUAL TUBE SUPPORT FOR ELECTRON EMITTER
    27.
    发明申请
    DUAL TUBE SUPPORT FOR ELECTRON EMITTER 有权
    双管支持电子发射器

    公开(公告)号:US20150071410A1

    公开(公告)日:2015-03-12

    申请号:US14325896

    申请日:2014-07-08

    Applicant: Moxtek, Inc.

    CPC classification number: H01J35/06 H01J9/26 H01J9/385 H01J35/00 H01J35/16

    Abstract: An x-ray tube including dual, electrically-conductive emitter tubes to support and provide electrical power to an electron emitter. A method of evacuating and sealing the x-ray tube by drawing a vacuum on the x-ray tube through an inner tube of dual emitter tubes, then pinching the inner tube to seal off the enclosure and to maintain a vacuum therein.

    Abstract translation: X射线管包括双重导电发射管,用于支撑并向电子发射器提供电能。 通过双发射管的内管在X射线管上吸取真空,然后夹紧内管以密封外壳并在其中保持真空,来抽空和密封X射线管的方法。

    X-ray source voltage shield
    28.
    发明授权

    公开(公告)号:US11545333B2

    公开(公告)日:2023-01-03

    申请号:US17517058

    申请日:2021-11-02

    Applicant: Moxtek, Inc.

    Abstract: A shield around an x-ray tube, a voltage multiplier, or both can improve the manufacturing process by allowing testing earlier in the process and by providing a holder for liquid potting material. The shield can also improve voltage standoff. A shielded x-ray tube can be electrically coupled to a shielded power supply.

    X-Ray Tube Insulation, Window, and Focusing Plate

    公开(公告)号:US20220013321A1

    公开(公告)日:2022-01-13

    申请号:US17477022

    申请日:2021-09-16

    Applicant: Moxtek, Inc.

    Abstract: X-ray transparent insulation can be sandwiched between an x-ray window and a ground plate. The x-ray transparent insulation can include aluminum nitride, boron nitride, or polyetherimide. The x-ray transparent insulation can include a curved side. The x-ray transparent insulation can be transparent to x-rays and resistant to x-ray damage, and can have high thermal conductivity. An x-ray window can have high thermal conductivity, high electrical conductivity, high melting point, low cost, and matched coefficient of thermal conductivity with the anode. The x-ray window can be made of tungsten. For consistent x-ray spot size and location, a focusing plate and a filament can be attached to a cathode with an open channel of the focusing plate aligned with a longitudinal dimension of the filament. Tabs of the focusing plate bordering the open channel can be bent to align with a location of the filament.

    Non-planar voltage multiplier
    30.
    发明授权

    公开(公告)号:US10945329B2

    公开(公告)日:2021-03-09

    申请号:US16668897

    申请日:2019-10-30

    Applicant: Moxtek, Inc.

    Abstract: In order to reduce the amount of electrical insulation needed for voltage isolation of large voltages generated by a voltage multiplier, the voltage multiplier can be shaped to smooth out electric field gradients. The voltage multiplier can comprise multiple sections, each section located in a different plane. The voltage multiplier can comprise a negative voltage multiplier and a positive voltage multiplier, each inclined at different angles with respect to each other. The voltage multiplier can include a curved shape.

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