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    Limiting migration of target material
    123.
    发明授权
    Limiting migration of target material 有权
    限制目标材料的迁移

    公开(公告)号：US09564283B2

    公开(公告)日：2017-02-07

    申请号：US14408085

    申请日：2012-06-14

    Applicant: Oscar Hemberg ,  Tomi Tuohimaa ,  Per Takman

    Inventor： Oscar Hemberg ,  Tomi Tuohimaa ,  Per Takman

    IPC: H01J29/62 ,  H01J35/04 ,  H01J35/08 ,  G21K1/08 ,  G21K5/04 ,  H01J35/14

    CPC classification number: H01J29/62 ,  G21K1/08 ,  G21K5/04 ,  H01J35/04 ,  H01J35/08 ,  H01J35/14 ,  H01J2235/082 ,  H01J2235/16

    Abstract: In an electron irradiation system, a gas-tight housing encloses a cathode region and an irradiation region, which communicate through at least an aperture. In the cathode region, there is arranged a high-voltage cathode for emitting an electron beam. In the irradiation region, there is an irradiation site arranged to accommodate a stationary or moving object to be irradiated. The migration of cathode-degrading debris is limited by means of an electric field designed to prevent positively charged particles from entering the cathode region via the aperture. The invention can be embodied with an axial electric field, which realizes an energy threshold, or a transversal field which deflects charged particles away from trajectories leading into the cathode region.

    Abstract translation: 在电子照射系统中，气密壳体包围通过至少一个孔连通的阴极区域和照射区域。 在阴极区域中设置有用于发射电子束的高电压阴极。 在照射区域中，存在被配置为容纳待照射的静止或移动物体的照射部位。 阴极降解碎屑的迁移通过设计用于防止带正电荷的颗粒经由孔径进入阴极区域的电场而受到限制。 本发明可以用实现能量阈值的轴向电场或使带电粒子远离导入阴极区域的横向场来实现。

    METHOD AND APPARATUS FOR IMPROVED SAMPLING RESOLUTION IN X-RAY IMAGING SYSTEMS
    124.
    发明申请
    METHOD AND APPARATUS FOR IMPROVED SAMPLING RESOLUTION IN X-RAY IMAGING SYSTEMS 有权
    用于X射线成像系统中改进采样分辨率的方法和装置

    公开(公告)号：US20160123902A1

    公开(公告)日：2016-05-05

    申请号：US14977279

    申请日：2015-12-21

    Applicant: NOVARAY MEDICAL, INC.

    Inventor： Augustus Percival Lowell ,  Tobias Funk ,  Chwen-Yuan Ku ,  Josh Star-Lack ,  Edward Gerald Solomon ,  Winston Y. Sun

    IPC: G01N23/04

    CPC classification number: G01N23/04 ,  A61B6/025 ,  A61B6/40 ,  A61B6/4007 ,  A61B6/4233 ,  A61B6/487 ,  A61B6/5205 ,  H01J35/04 ,  H01J35/065

    Abstract: The present invention pertains to an apparatus and method for X-ray imaging wherein a radiation source comprising rows of discrete emissive locations can be positioned such that these rows are angularly offset relative to rows of sensing elements on a radiation sensor. A processor can process and allocate responses of the sensing elements in appropriate memory locations given the angular offset between source and sensor. This manner of allocation can include allocating the responses into data rows associated with unique positions along a direction of columns of discrete emissive locations on the source. Mapping coefficients can be determined that map allocated responses into an image plane.

    Abstract translation: 本发明涉及一种用于X射线成像的装置和方法，其中包括离散发射位置行的辐射源可以被定位成使得这些行相对于辐射传感器上的感测元件的行成角度地偏移。 给定源和传感器之间的角度偏移，处理器可以在适当的存储器位置处理和分配感测元件的响应。 这种分配方式可以包括将响应分配到与源上的离散发射位置的列的方向上的唯一位置相关联的数据行。 可以确定将分配的响应映射到图像平面中的映射系数。

    X-RAY GENERATOR
    127.
    发明申请
    X-RAY GENERATOR 有权
    X射线发生器

    公开(公告)号：US20150279608A1

    公开(公告)日：2015-10-01

    申请号：US14614781

    申请日：2015-02-05

    Applicant: SHIMADZU CORPORATION

    Inventor： Akihiro Miyaoka

    IPC: H01J35/04 ,  H01J35/18

    CPC classification number: H01J35/16 ,  A61B6/40 ,  A61B6/44 ,  A61B2560/0406 ,  H01J1/40 ,  H01J1/88 ,  H01J5/02 ,  H01J5/04 ,  H01J19/56 ,  H01J35/02 ,  H01J35/04 ,  H01J35/14 ,  H01J35/28 ,  H01J37/16 ,  H01J2235/083 ,  H01J2235/087 ,  H01J2235/16 ,  H01J2235/163 ,  H01J2235/186 ,  H05G1/02 ,  H05G1/04

    Abstract: An X-ray generator is provided using a transmission type target having a long life span, where it is possible to change the point for generating X-rays on the surface of the target while maintaining the vacuum chamber in a high vacuum state. A portion of a vacuum chamber 1 that includes a target 2 is linked to a main body portion 1a of the chamber through a linking member 5 as a movable chamber portion 1b. A fixed anode 12 is provided between the target 2 and the electrode 10 at the final stage from among a group of electrodes 8, 9 and 10 for electrostatically accelerating and converging electrons from an electron source 7 and is fixed to the main body portion 1a of the chamber in order to prevent the form of the electrical field from changing when the movable chamber portion 1b is shifted.

    Abstract translation: 使用寿命长的透射型靶设置X射线发生器，能够在将真空室保持在高真空状态的同时，改变在靶表面产生X射线的点。 包括目标2的真空室1的一部分通过作为可移动室部分1b的连接构件5连接到室的主体部分1a。 在一组电极8,9和10之间，在靶2和电极10之间设置固定阳极12，用于从电子源7静电加速和会聚电子，并固定到电极10的主体部分1a 该室为了防止当可动室部分1b移动时电场的形式改变。

    X-RAY GENERATOR HAVING MULTIPLE EXTRACTORS WITH INDEPENDENTLY SELECTABLE POTENTIALS
    128.
    发明申请
    X-RAY GENERATOR HAVING MULTIPLE EXTRACTORS WITH INDEPENDENTLY SELECTABLE POTENTIALS 有权
    具有独立选择性潜能的多级萃取器的X射线发生器

    公开(公告)号：US20150168579A1

    公开(公告)日：2015-06-18

    申请号：US14108244

    申请日：2013-12-16

    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION

    Inventor： LUKE PERKINS

    IPC: G01V1/46 ,  H01J35/14

    CPC classification number: G01V5/12 ,  H01J35/04 ,  H01J35/045 ,  H01J35/30

    Abstract: A logging tool is for determining a property of a subsurface formation having a borehole therein and includes a housing to fit within the borehole. An x-ray generator is carried by the housing and includes at least three extractor electrodes, an electron emitter to emit electrons toward the extractor electrodes, and a target downstream of the extractor electrodes. The extractor electrodes have independently selectable potentials so as to allow direction of an electron beam, formed from the electrons emitted by the electron emitter, toward different longitudinal and lateral regions of the target, the target to emit x-rays into the subsurface formation when struck by the electron beam. A radiation detector is carried by the housing to detect incoming radiation resulting from interactions between the x-rays and the subsurface formation. Processing circuitry is coupled to the radiation detector to determine the property of the subsurface formation based upon detected incoming radiation.

    Abstract translation: 测井工具用于确定其中具有钻孔的地下地层的特性，并且包括适合于钻孔内的壳体。 X射线发生器由壳体承载，并且包括至少三个提取器电极，向提取器电极发射电子的电子发射器，以及提取器电极下游的靶。 提取器电极具有可独立选择的电位，以允许由电子发射器发射的电子形成的电子束朝向目标的不同纵向和横向区域的方向，目标在被击打时将x射线发射到地下地层 通过电子束。 辐射检测器由壳体承载以检测由x射线和地下地层之间的相互作用产生的入射辐射。 处理电路耦合到辐射检测器，以基于检测到的入射辐射来确定地下地层的性质。

    Radiation generating apparatus and radiation imaging apparatus
    129.
    发明授权
    Radiation generating apparatus and radiation imaging apparatus 有权
    辐射发生装置和放射线成像装置

    公开(公告)号：US09058958B2

    公开(公告)日：2015-06-16

    申请号：US13539871

    申请日：2012-07-02

    Applicant: Shuji Aoki ,  Koji Yamazaki ,  Yoshihiro Yanagisawa ,  Kazuyuki Ueda ,  Miki Tamura

    Inventor： Shuji Aoki ,  Koji Yamazaki ,  Yoshihiro Yanagisawa ,  Kazuyuki Ueda ,  Miki Tamura

    IPC: H01J35/18 ,  H01J35/04 ,  H01J35/16

    CPC classification number: H01J35/18 ,  H01J35/04 ,  H01J35/16 ,  H01J2235/06 ,  H01J2235/087 ,  H01J2235/1204 ,  H01J2235/1216 ,  H01J2235/122 ,  H01J2235/1262 ,  H01J2235/1291 ,  H01J2235/16 ,  H01J2235/167 ,  H01J2235/186

    Abstract: The present invention relates to a radiation generating apparatus which includes an envelope provided with a first window through which radiation is transmitted, a radiation tube housed in the envelope and provided with a second window through which the radiation is transmitted, the second window being located at a position opposite the first window, and an insulating fluid adapted to fill the space between the inner wall of the envelope and the radiation tube. Plural plates are arranged side by side between the first window including its periphery and the second window including its periphery, and overlapping one another with gaps between them. The gaps are formed among the plates, and thereby the withstanding voltage between the first window and second window is made larger.

    Abstract translation: 辐射发生装置技术领域本发明涉及一种辐射发生装置，其包括设置有透射辐射的第一窗口的封套，容纳在封套中的辐射管，并设置有第二窗口，第二窗口通过该第二窗口辐射，第二窗口位于 与第一窗口相对的位置，以及适于填充外壳的内壁和辐射管之间的空间的绝缘流体。 多个板并排布置在包括其周边的第一窗口和包括其周边的第二窗口之间并且彼此重叠并且在它们之间具有间隙。 在板之间形成间隙，从而使第一窗和第二窗之间的耐压更大。

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