专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明公开

EP4336540A1 SMALL-TARGET X-RAY SYSTEM 审中-公开
公开(公告)号：EP4336540A1
公开(公告)日：2024-03-13
申请号：EP22195135.3
申请日：2022-09-12
申请人： Excillum AB
发明人： NILSSON, Daniel , LUNDSTRÖM, Ulf
IPC分类号： H01J35/08 , H01J35/14 , H01J35/30 , H05G1/52
摘要： An X-ray system comprising an X-ray source; a sample position; a detector arranged to detect X-ray radiation downstream of said sample position; and a controller is disclosed. The X-ray source comprises an electron source arranged to provide an electron beam; a target arranged to produce X-ray radiation upon impact by said electron beam at an electron beam spot, wherein said target comprises a substrate and a target layer, and wherein said target layer exhibits a hole having a diameter smaller than a diameter of the electron beam spot; a deflector for directing the electron beam to a first position on said target where the electron beam spot is formed at a uniform portion of said target layer away from said hole, and to a second position on said target where the electron beam spot is formed at a portion of said target exhibiting said hole. The controller is configured to acquire, using said detector, a first image with the electron beam directed to said first position, and a second image with the electron beam directed to said second position, and to generate a difference image between the first image and the second image. A corresponding method is also disclosed.

2. 发明公开

EP3836187A1 RÖNTGENRÖHRE MIT GERINGERER EXTRA-FOKALER RÖNTGENSTRAHLUNG 审中-公开
公开(公告)号：EP3836187A1
公开(公告)日：2021-06-16
申请号：EP19215135.5
申请日：2019-12-11
申请人： Siemens Healthcare GmbH
发明人： Fritzler, Anja
IPC分类号： H01J35/30 , H01J35/06
摘要： Die Erfindung betrifft eine Drehkolben-Röntgenröhre, einen Drehkolben-Röntgenstrahler, eine Röntgeneinrichtung und einen Computertomograph.
Die erfindungsgemäße Drehkolben-Röntgenröhre weist
- ein Vakuumgehäuse,
- eine Kathode und
- einen Anodenteller mit einer ringförmigen Brennbahn zur Generierung von Röntgenstrahlung mittels Elektronen auf,
- wobei der Anodenteller kegelförmig ist und die ringförmige Brennbahn auf einer Mantelfläche des Anodentellers angeordnet ist,
- wobei in dem Vakuumgehäuse die Kathode und der Anodenteller relativ zueinander drehfest angeordnet sind,
- wobei die Kathode einen Kathodenträger und mehrere ringförmig auf dem Kathodenträger angeordnete Feldeffekt-Emitternadeln zur Emission der Elektronen aufweist und
- wobei die Kathode derart ausgebildet ist, dass die emittierten Elektronen in einem Einfallswinkel kleiner 15° auf der Brennbahn auftreffen.

3. 发明授权

EP3063780B1 X-RAY TUBE HAVING PLANAR EMITTER WITH TUNABLE EMISSION CHARACTERISTICS AND MAGNETIC STEERING AND FOCUSING 有权转让
公开(公告)号：EP3063780B1
公开(公告)日：2021-06-02
申请号：EP14857722.4
申请日：2014-10-29
发明人： CANFIELD, Bradley, D. , WOODMAN, Colton, B.
IPC分类号： H01J1/00 , H01J29/00 , H01J35/04 , H01J35/06 , H01J35/14 , H01J35/30

4. 发明授权

EP2911179B1 X-RAY TUBE DEVICE 有权
标题翻译： X射线管装置
公开(公告)号：EP2911179B1
公开(公告)日：2017-11-29
申请号：EP12886920.3
申请日：2012-10-22
申请人： Shimadzu Corporation
发明人： TOMITA, Sadamu , UKITA, Masaaki
IPC分类号： H01J35/14 , H01J35/16 , H01J35/30
CPC分类号： H01J35/14 , H01J35/16 , H01J35/305 , H01J2235/02 , H01J2235/16 , H01J2235/168
摘要： An X-ray tube device (100) according to the present invention includes a cathode (1) generating an electron beam, an anode (2) generating an X-ray by collision of the electron beam from the cathode, an envelope (3) internally housing the cathode and the anode, a magnetic field generator (4) including a magnetic pole (4b) arranged to be opposed to the envelope, generating a magnetic field for focusing and deflecting the electron beam from the cathode to the anode, and an electric field relaxing electrode (5) arranged between the magnetic pole and the envelope, having an outer surface having a rounded shape. Thus, the magnetic field generator can be placed closer to the envelope while a tip end of the magnetic field generator is suppressed from being a discharge start point, and hence the effect of being capable of downsizing the X-ray tube device is achieved.

5. 发明公开

EP2779203A3 X-ray tube comprising field emission type electron gun and X-ray inspection apparatus using the same 审中-公开
标题翻译：包括场致发射型电子枪的X射线管和使用其的X射线检查设备
公开(公告)号：EP2779203A3
公开(公告)日：2017-09-27
申请号：EP14159162.8
申请日：2014-03-12
申请人： Mars Tohken X-Ray Inspection Co., Ltd.
发明人： Shirota, Kohei , Minami, Katsutoshi , Oohashi, Kenji
IPC分类号： H01J35/16 , H01J35/30 , H01J35/14
CPC分类号： H01J35/14 , G01N23/04 , H01J35/16 , H01J35/30 , H01J2235/087 , H01J2235/1204
摘要： The X-ray tube (2) according to the present invention comprises a field emission type electron gun chamber (12), an electron beam aperture (40), an X-ray target (23) and a vacuum pump (27), in one body with a vacuum sealing structure (vacuum tube section). The vacuum tube section (11) is attachable and detachable to the electro magnetic lens section (28) in the X-ray tube, thereby it is possible to perform the baking by removing only the vacuum tube section. The fitting portions for positioning are provided at the vacuum tube section and the electro magnetic lens section, and therefore it is a constitution to easily perform an optical axis alignment at a mounting time after the baking.
摘要翻译：根据本发明的X射线管（2）包括场发射型电子枪室（12），电子束孔（40），X射线靶（23）和真空泵（27），其中一个带有真空密封结构的主体（真空管部分）。真空管部（11）能够相对于X射线管内的电磁透镜部（28）装卸，能够仅去除真空管部来进行烧成。定位用的嵌合部设置在真空管部和电磁透镜部，因此，构成为在烧成后的安装时容易进行光轴取向。

6. 发明公开

EP2252216A1 ANORDNUNG ZUR DREIDIMENSIONALEN ELEKTRONENSTRAHLTOMOGRAPHIE 有权转让
标题翻译：安排用于三维电子断层扫描
公开(公告)号：EP2252216A1
公开(公告)日：2010-11-24
申请号：EP09704135.4
申请日：2009-01-20
申请人： Forschungszentrum Dresden - Rossendorf e.V.
发明人： HAMPEL, Uwe
IPC分类号： A61B6/03 , H01J35/30 , H01J35/16
CPC分类号： H01J35/30 , A61B6/027 , A61B6/032 , A61B6/4028 , A61B6/503 , A61B6/508 , H01J35/08 , H01J35/14 , H01J2235/086
摘要： The aim of the present invention is to disclose an arrangement for X-ray computer tomography allowing continuous three-dimensional imaging of the scanned object or a partial volume of the scanned object at high temporal and spatial resolution, wherein high spatial resolution is defined as high resolution both within the section plane and in the axial direction.

7. 发明公开

EP1840935A1 X-ray inspection system with coordination between detector and multiple focal spots 有权
标题翻译： Röntgen-Durchleuchtungsanlage mit Multi-Fokus und darauf abgestimmten Detektor
公开(公告)号：EP1840935A1
公开(公告)日：2007-10-03
申请号：EP07104944.9
申请日：2007-03-27
申请人： General Electric Company
发明人： Birdwell, Thomas William , Galish, Andrew Joseph
IPC分类号： H01J35/30 , H05G1/52
CPC分类号： H01J35/30 , G01N23/04
摘要： A radiographic inspection system (10) includes an electron gun (20), a fixed anode (22) of a dense material, and apparatus for steering an electron beam (32) generated by the electron gun (20) to multiple focal spots (44) on the anode (22). A detector (14) includes a plurality of individual detector elements (38). Operation of the system is carried out by directing the electron beam (32) at a first time interval to a first focal spot (44) on the anode (22), generating a first X-ray beam (46) aligned with a first detector element (38). During a second time interval, the electron beam (32) is directed to a second focal spot (44) on the anode (22), spaced-away from the first focal spot (44), generating a second X-ray beam (46) aligned with a second detector element (38). This cycle is repeated with additional focal spots (44) in a one-dimensional or two-dimensional pattern. The detector element output is read in coordination with the position of the electron beam (32).
摘要翻译：射线检查系统（10）包括电子枪（20），致密材料的固定阳极（22）和用于将由电子枪（20）产生的电子束（32）转向多个焦点（44）的装置）在阳极（22）上。检测器（14）包括多个单独的检测器元件（38）。通过将电子束（32）以第一时间间隔引导到阳极（22）上的第一焦点（44）来执行系统的操作，产生与第一检测器对准的第一X射线束（46）元件（38）。在第二时间间隔期间，电子束（32）被引导到与第一焦斑（44）间隔开的阳极（22）上的第二焦点（44），产生第二X射线束（46））与第二检测器元件（38）对准。以一维或二维图案的附加焦斑（44）重复该循环。与电子束（32）的位置协调地读取检测器元件输出。

8. 发明公开

EP1119870A4 X-RAY SCANNING METHOD AND APPARATUS 审中-公开
标题翻译：方法和设备采样由X射线
公开(公告)号：EP1119870A4
公开(公告)日：2006-09-13
申请号：EP99970207
申请日：1999-09-30
申请人： NEXRAY INC
发明人： SOLOMON EDWARD G , WILFLEY BRIAN P
IPC分类号： G21K5/02 , A61B6/06 , G21K1/02 , H01J35/30 , H05G1/00 , H05G2/00
CPC分类号： H01J35/30 , A61B6/06 , A61B6/4028 , A61B6/4488 , G21K1/025 , H01J2235/081 , H01J2235/087
摘要： A method for scanning an X-ray target in a reverse geometry X-ray imaging system with a charged particle beam is disclosed. An aspect of the invention is directed to scanning patterns for moving an electron beam across the target assembly to generate X-rays, in which a charged particle is moved across a plurality of sets of positions (600, 620, 650) on a target assembly, wherein particular positions or sets of positions (600, 620) on the target assembly are rescanned a plurality of times during a single frame. The length of time between a first and a last illumination of the object during the frame is sufficiently small to prevent image blurring during image reconstruction.

9. 发明公开

EP0869534A3 X-ray source with beam steering 失效
标题翻译：带有光束转向的X射线源
公开(公告)号：EP0869534A3
公开(公告)日：1998-11-18
申请号：EP98112612.1
申请日：1995-01-19
申请人： PHOTOELECTRON CORPORATION
发明人： Dinsmore, Mark T. , Smith, Donald O.
IPC分类号： H01J35/32 , H01J35/30
CPC分类号： A61N5/1001 , A61B90/11 , A61B2090/101 , A61N2005/1005 , H01J35/065 , H01J35/08 , H01J35/30 , H01J35/32 , H01J2201/342 , H05G1/06 , H05G1/10 , H05G1/32 , H05G1/34
摘要： This invention is directed to an x-ray source comprising a housing (12), a power supply (12A), an elongated tubular probe (14), a target assembly (26), and a beam steering assembly (29). The housing encloses an electron beam source (22), and has elements for generating an electron beam along a beam path. The power supply (12A) is programmable to control the voltage, current and timing of assembly (26) extends along the central axis and is adapted for coupling to end of the probe (14) distal from the housing (12). The target assembly (26) includes target element (26A) positioned along the beam path, wherein the target element (26A) is adapted to emit x-rays in a predetermined spectral range in response to incident electrons. The beam steering assembly (29) includes a deflection element (30), a feedback network (31) and a deflection controller (144). The deflection element (30) deflects the beam from a nominal axis to a selected surface region on the target element (26) in response to a deflection control signal. The feedback network (31) includes deflection sensing elements for sensing the deflection of the beam and elements for generating feedback signal representative thereof.
摘要翻译：本发明涉及包括外壳（12），电源（12A），细长管状探头（14），靶组件（26）和射束转向组件（29）的X射线源。壳体包围电子束源（22），并具有用于沿着光束路径产生电子束的元件。电源（12A）是可编程的，以控制组件（26）的电压，电流和定时沿着中心轴线延伸并适于耦合到远离壳体（12）的探针（14）的末端。目标组件（26）包括沿着光束路径定位的目标元件（26A），其中目标元件（26A）适于响应入射电子发射预定光谱范围内的X射线。波束转向组件（29）包括偏转元件（30），反馈网络（31）和偏转控制器（144）。偏转元件（30）响应于偏转控制信号将光束从标称轴偏转到目标元件（26）上的选定表面区域。反馈网络（31）包括用于检测光束偏转的偏转检测元件和用于产生代表其反馈信号的元件。

10. 发明授权

EP0224786B1 Röntgenstrahler 失效
标题翻译： X射线发射器
公开(公告)号：EP0224786B1
公开(公告)日：1990-02-28
申请号：EP86115942.4
申请日：1986-11-17
申请人： SIEMENS AKTIENGESELLSCHAFT
发明人： Haberrecker, Klaus, Dr.
IPC分类号： H01J35/14 , H01J35/30 , H05G1/52
CPC分类号： H01J35/14 , H01J35/305 , H05G1/26 , H05G1/52

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式