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    Systems and Methods for Generating Tunable Electromagnetic Waves Using Carbon Nanotube-Based Field Emitters
    61.
    发明申请
    Systems and Methods for Generating Tunable Electromagnetic Waves Using Carbon Nanotube-Based Field Emitters 审中-公开
    使用基于碳纳米管的场发射器产生可调谐电磁波的系统和方法

    公开(公告)号：US20160372297A1

    公开(公告)日：2016-12-22

    申请号：US15187659

    申请日：2016-06-20

    Applicant: California Institute of Technology

    Inventor： Harish Manohara ,  Risaku Toda ,  Mohammad M. Mojarradi ,  Linda Y. Del Castillo

    IPC: H01J35/06 ,  H01J35/08

    CPC classification number: H01J35/065 ,  H01J35/08 ,  H01J2201/30469 ,  H01J2235/081

    Abstract: Systems and methods in accordance with embodiments of the invention generate tunable electromagnetic waves using carbon nanotube-based field emitters. In one embodiment, a CNT-based irradiator includes: at least one CNT-based cathode, itself including: a plurality of carbon nanotubes adjoined to a substrate; a plurality of anodic regions; where each anodic region is configured to emit a distinctly different class of photons in a direction away from the at least one cathode in response to a same reception of electrons; where each of the plurality of anodic regions is operable to receive electrons emitted from at least one of said at least one CNT-based cathode; and where each of the at least one CNT-based cathode and the plurality of anodic regions are disposed within a vacuum encasing.

    Abstract translation: 根据本发明的实施例的系统和方法使用基于碳纳米管的场发射器产生可调电磁波。 在一个实施方案中，基于CNT的辐照器包括：至少一个基于CNT的阴极本身包括：与基底相邻的多个碳纳米管; 多个阳极区域; 其中每个阳极区域被配置为响应于相同的电子接收而沿远离所述至少一个阴极的方向发射明显不同类型的光子; 其中所述多个阳极区域中的每一个可操作以接收从所述至少一个基于CNT的阴极中的至少一个发射的电子; 并且其中所述至少一个CNT基阴极和所述多个阳极区域中的每一个设置在真空包装内。

    DIVERGING X-RAY SOURCES USING LINEAR ACCUMULATION
    62.
    发明申请
    DIVERGING X-RAY SOURCES USING LINEAR ACCUMULATION 审中-公开
    使用线性累积的DIVERGING X射线源

    公开(公告)号：US20160351370A1

    公开(公告)日：2016-12-01

    申请号：US15166274

    申请日：2016-05-27

    Applicant: Sigray, Inc.

    Inventor： Wenbing Yun ,  Sylvia Jia Yun Lewis ,  Janos Kirz ,  Alan Francis Lyon ,  David Charles Reynolds

    IPC: H01J35/10 ,  H01J35/18 ,  H01J35/06

    CPC classification number: H01J35/08 ,  G21K1/06 ,  H01J2235/081 ,  H01J2235/086 ,  H01J2235/1204

    Abstract: A compact source for high brightness x-ray generation is disclosed. The higher brightness is achieved through electron beam bombardment of multiple regions aligned with each other to achieve a linear accumulation of x-rays. This may be achieved through the use of x-ray targets that comprise microstructures of x-ray generating materials fabricated in close thermal contact with a substrate with high thermal conductivity. This allows heat to be more efficiently drawn out of the x-ray generating material, and allows bombardment of the x-ray generating material with higher electron density and/or higher energy electrons, leading to greater x-ray brightness. The orientation of the microstructures allows the use of a take-off angle at or near 0°, allowing the accumulation of x-rays from several microstructures to be aligned and be used to form a beam in the shape of an annular cone.

    Abstract translation: 公开了用于高亮度x射线产生的紧凑源。 通过彼此对准的多个区域的电子束轰击实现较高的亮度，以实现x射线的线性积累。 这可以通过使用包括与具有高导热性的基板紧密热接触制造的x射线产生材料的微结构的x射线靶来实现。 这使得能够更有效地从X射线产生材料中引出热量，并且允许以较高电子密度和/或更高能量的电子轰击x射线产生材料，导致更大的x射线亮度。 微结构的方向允许使用在0°或接近0°的起飞角度，允许来自几个微结构的X射线的积聚被对准并且用于形成环形锥形的束。

    Rotary X-ray anode
    63.
    发明授权
    Rotary X-ray anode 有权
    旋转X射线阳极

    公开(公告)号：US09368318B2

    公开(公告)日：2016-06-14

    申请号：US13980585

    申请日：2012-01-17

    Applicant: Johann Eiter ,  Jürgen Schatte ,  Wolfgang Glatz ,  Wolfram Knabl ,  Gerhard Leichtfried ,  Stefan Schönauer

    Inventor： Johann Eiter ,  Jürgen Schatte ,  Wolfgang Glatz ,  Wolfram Knabl ,  Gerhard Leichtfried ,  Stefan Schönauer

    IPC: H01J35/10

    CPC classification number: H01J35/108 ,  H01J2235/081 ,  H01J2235/085

    Abstract: A rotary X-ray anode has a support body and a focal track formed on the support body. The support body and the focal track are produced as a composite by powder metallurgy. The support body is formed from molybdenum or a molybdenum-based alloy and the focal track is formed from tungsten or a tungsten-based alloy. Here, in the conclusively heat-treated rotary X-ray anode, at least one portion of the focal track is located in a non-recrystallized and/or in a partially recrystallized structure.

    Abstract translation: 旋转X射线阳极具有形成在支撑体上的支撑体和焦点轨迹。 支撑体和焦轨通过粉末冶金制成复合材料。 支撑体由钼或钼基合金形成，焦点轨道由钨或钨基合金形成。 这里，在最终热处理的旋转X射线阳极中，焦点轨道的至少一部分位于未再结晶和/或部分重结晶的结构中。

    Low-dose radiographic imaging system
    67.
    发明授权
    Low-dose radiographic imaging system 有权
    低剂量放射成像系统

    公开(公告)号：US09218933B2

    公开(公告)日：2015-12-22

    申请号：US14491825

    申请日：2014-09-19

    Applicant: Rapiscan Systems, Inc.

    Inventor： Willem Gerhardus Johannes Langeveld ,  Joseph Bendahan ,  Tsahi Gozani ,  Michael King ,  Dan Strellis ,  Edward Franco ,  Krystal R. Alfonso

    IPC: H05G1/52 ,  G21K1/08 ,  H01J37/14 ,  H01J35/14 ,  H01J35/30 ,  H01J37/147 ,  G21K1/093

    CPC classification number: H01J35/14 ,  G01V5/0016 ,  G21K1/093 ,  H01J35/08 ,  H01J35/30 ,  H01J35/32 ,  H01J37/14 ,  H01J37/141 ,  H01J37/147 ,  H01J37/1472 ,  H01J37/1475 ,  H01J37/3178 ,  H01J2235/081 ,  H01J2235/086 ,  H05G1/52 ,  H05G2/00

    Abstract: An inspection system for scanning cargo and vehicles is described which employs an X-ray source that includes an electron beam generator, for generating an electron beam; an accelerator for accelerating said electron beam in a first direction; and, a first set of magnetic elements for transporting said electron beam into a magnetic field created by a second set of magnetic elements, wherein the magnetic field created by said second set of magnetic elements causes said electron beam to strike a target such that the target substantially only generates X-rays focused toward a high density section in the scanned object, which is estimated in a second pulse using image data captured by a detector array in a first pulse. The electron beam direction is optimized by said X-ray source during said second pulse to focus X-rays towards said high density section based on said image data in said first pulse.

    Abstract translation: 描述了用于扫描货物和车辆的检查系统，其使用包括电子束发生器的X射线源，用于产生电子束; 用于在第一方向上加速所述电子束的加速器; 以及用于将所述电子束传送到由第二组磁性元件产生的磁场中的第一组磁性元件，其中由所述第二组磁性元件产生的磁场使所述电子束撞击靶，使得所述靶 基本上仅产生朝向扫描对象中的高密度部分聚焦的X射线，其以第一脉冲中由检测器阵列捕获的图像数据在第二脉冲中估计。 在所述第二脉冲期间，由所述X射线源优化电子束方向，以基于所述第一脉冲中的所述图像数据将X射线聚焦到所述高密度部分。

    HIGH BRIGHTNESS X-RAY ABSORPTION SPECTROSCOPY SYSTEM
    68.
    发明申请
    HIGH BRIGHTNESS X-RAY ABSORPTION SPECTROSCOPY SYSTEM 有权
    高亮度X射线吸收光谱系统

    公开(公告)号：US20150357069A1

    公开(公告)日：2015-12-10

    申请号：US14636994

    申请日：2015-03-03

    Applicant: Sigray, Inc.

    Inventor： Wenbing Yun ,  Sylvia Jia Yun Lewis ,  Janos Kirz

    IPC: G21K1/06 ,  G21K1/02 ,  G01N23/207

    CPC classification number: G01N23/2076 ,  G01N23/085 ,  G21K2201/061 ,  G21K2201/062 ,  G21K2201/064 ,  H01J35/08 ,  H01J35/14 ,  H01J2235/081 ,  H01J2235/086

    Abstract: This disclosure presents systems for x-ray absorption fine structure (XAFS) measurements that have x-ray flux and flux density several orders of magnitude greater than existing compact systems. These are useful for laboratory or field applications of x-ray absorption near-edge spectroscopy (XANES) or extended x-ray fine absorption structure (EXFAS) spectroscopy.The higher brightness is achieved by using designs for x-ray targets that comprise a number of aligned microstructures of x-ray generating materials fabricated in close thermal contact with a substrate having high thermal conductivity. This allows for bombardment with higher electron density and/or higher energy electrons, leading to greater x-ray brightness and high flux.The high brightness x-ray source is then coupled to an x-ray reflecting optical system to collimate the x-rays, and a monochromator, which selects the exposure energy. Absorption spectra of samples using the high flux monochromatic x-rays can be made using standard detection techniques.

    Abstract translation: 本公开提供了x射线吸收精细结构（XAFS）测量的系统，其具有比现有紧凑系统大几个数量级的x射线通量和通量密度。 这些对于x射线吸收近边缘光谱（XANES）或扩展X射线精细吸收结构（EXFAS）光谱的实验室或现场应用是有用的。 通过使用X射线靶的设计来实现更高的亮度，所述X射线靶包括与具有高导热性的基底紧密热接触制造的x射线产生材料的多个对准微结构。 这允许用更高电子密度和/或更高能量的电子进行轰击，导致更大的x射线亮度和高通量。 然后将高亮度x射线源耦合到X射线反射光学系统以准直x射线，以及选择曝光能量的单色仪。 使用高通量单色x射线的样品的吸收光谱可以使用标准检测技术进行。

    Multi-target X-ray tube with stationary electron beam position
    69.
    发明授权
    Multi-target X-ray tube with stationary electron beam position 有权
    具有固定电子束位置的多目标X射线管

    公开(公告)号：US09177755B2

    公开(公告)日：2015-11-03

    申请号：US14163486

    申请日：2014-01-24

    Applicant: Moxtek, Inc.

    Inventor： Todd S. Parker ,  Steven D. Liddiard ,  Dave Reynolds

    IPC: H01J35/24 ,  H01J35/10 ,  H01J35/14 ,  H01J35/28

    CPC classification number: H01J35/24 ,  H01J35/08 ,  H01J35/10 ,  H01J35/14 ,  H01J35/16 ,  H01J35/28 ,  H01J2235/081 ,  H01J2235/086 ,  H01J2235/087 ,  H01J2235/186

    Abstract: A transmission x-ray tube comprising an end window hermetically sealed to a flexible coupling. The flexible coupling can allow the window to shift or tilt in one direction or another direction to allow an electron beam to impinge upon one region of the window or another region of the window.A method of utilizing different regions of an x-ray tube target by tilting an x-ray tube window at an acute angle with respect to an electron beam axis to cause an electron beam to impinge on a selected region of the window and tilting the window in a different direction to allow the electron beam to impinge on a different selected region of the window.

    Abstract translation: 一种透射X射线管，包括密封到柔性联轴器的端窗。 柔性联接可以允许窗口在一个方向或另一个方向上移动或倾斜，以允许电子束撞击窗口的一个区域或窗口的另一区域。 一种通过使X射线管窗口相对于电子束轴倾斜为锐角来利用X射线管靶的不同区域的方法，以使电子束撞击在窗口的选定区域上并使窗口倾斜 在不同的方向上，以允许电子束撞击窗口的不同选定区域。

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