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公开(公告)号:US06324257B1
公开(公告)日:2001-11-27
申请号:US09325703
申请日:1999-06-03
Applicant: Uriel Halavee
Inventor: Uriel Halavee
IPC: H01J3506
CPC classification number: A61N5/1001 , H01J35/32 , H01J2201/342 , H01J2235/06
Abstract: The present invention related to miniaturized x-ray tubes, that enable radiation treatment by locating the x-ray source within a human body in close vicinity to or inside of the area to be treated with X-rays. Advantageously, the present invention eliminates most of the problems related to the methods based on a radioactive source and offers a method for efficient and controllable radiation treatment.
Abstract translation: 本发明涉及小型化X射线管,能够通过将X射线源定位在与X射线进行治疗的区域附近或内部的人体内进行放射线治疗。 有利地,本发明消除了与基于放射源的方法相关的大多数问题,并且提供了一种用于有效和可控的辐射治疗的方法。
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公开(公告)号:US09779907B2
公开(公告)日:2017-10-03
申请号:US14607942
申请日:2015-01-28
Applicant: VARIAN MEDICAL SYSTEMS, INC.
Inventor: Bradley D. Canfield
CPC classification number: H01J35/045 , H01J9/042 , H01J9/18 , H01J35/06 , H01J35/14 , H01J2235/06 , H01J2235/068
Abstract: A cathode head can include: a first electron emitter filament having a first size; a first grid pair defining walls of a first filament slot having the first filament therein, each grid member of the first grid pair being electronically coupled to different voltage sources; a second electron emitter filament; and a second grid pair defining walls of a second filament slot having the first electron emitter therein, each grid member of the second grid pair being electronically coupled to different voltage sources. The first grid pair can have a first and second grid members; and the second grid pair can have the second grid member and a third grid member. The first grid member and third grid member are electronically coupled to the same voltage source and the second grid member being electronically coupled to a different voltage source.
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公开(公告)号:US20150303023A1
公开(公告)日:2015-10-22
申请号:US14753276
申请日:2015-06-29
Applicant: American Science and Engineering, Inc.
Inventor: Martin Rommel , Peter Rothschild
CPC classification number: H01J35/10 , G21K1/043 , H01J35/16 , H01J2235/06 , H01J2235/086 , H01J2235/16
Abstract: An x-ray tube for generating a sweeping x-ray beam. A cathode is disposed within a vacuum enclosure and emits a beam of electrons attracted toward an anode. The anode is adapted for rotation with respect to the vacuum enclosure about an axis of rotation. At least one collimator opening corotates with the anode within the vacuum enclosure, such that a swept x-ray beam is emitted.
Abstract translation: 用于产生扫掠X射线束的X射线管。 阴极设置在真空外壳内并发射向阳极吸引的电子束。 阳极适于围绕旋转轴线相对于真空外壳旋转。 至少一个准直器开口与真空外壳内的阳极相交,使得发射扫掠的X射线束。
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公开(公告)号:US09099279B2
公开(公告)日:2015-08-04
申请号:US13869101
申请日:2013-04-24
Applicant: American Science and Engineering, Inc.
Inventor: Martin Rommel , Peter Rothschild
CPC classification number: H01J35/10 , G21K1/043 , H01J35/16 , H01J2235/06 , H01J2235/086 , H01J2235/16
Abstract: An x-ray tube for generating a sweeping x-ray beam. A cathode is disposed within a vacuum enclosure and emits a beam of electrons attracted toward an anode. The anode is adapted for rotation with respect to the vacuum enclosure about an axis of rotation. At least one collimator opening corotates with the anode within the vacuum enclosure, such that a swept x-ray beam is emitted.
Abstract translation: 用于产生扫掠X射线束的X射线管。 阴极设置在真空外壳内并发射向阳极吸引的电子束。 阳极适于围绕旋转轴线相对于真空外壳旋转。 至少一个准直器开口与真空外壳内的阳极相交,使得发射扫掠的X射线束。
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公开(公告)号:US20150198860A1
公开(公告)日:2015-07-16
申请号:US14154443
申请日:2014-01-14
Inventor: Zenghu Chang , Qi Zhang , Kun Zhao
CPC classification number: G02F1/353 , G02F2001/3503 , G02F2001/354 , G21K1/10 , H01J35/24 , H01J2235/06 , H01J2235/08 , H05G2/00 , H05G2/008
Abstract: An optical filtering method that utilizes a Microchannel Plate (MCP) and an optical system that utilizes the optical filtering method. As an example, a XUV/SXR generation system that includes a MCP as a dispersionless, broadband IR pump filter.
Abstract translation: 一种利用微通道板(MCP)和利用光学滤波方法的光学系统的光学滤波方法。 作为示例,XUV / SXR生成系统包括MCP作为无色,宽带IR泵滤波器。
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26.
公开(公告)号:US09070529B2
公开(公告)日:2015-06-30
申请号:US13483193
申请日:2012-05-30
Applicant: Miki Tamura , Shuji Aoki , Yoshihiro Yanagisawa , Kazuyuki Ueda
Inventor: Miki Tamura , Shuji Aoki , Yoshihiro Yanagisawa , Kazuyuki Ueda
CPC classification number: H01J35/08 , H01J35/12 , H01J35/14 , H01J35/16 , H01J35/18 , H01J2235/06 , H01J2235/087 , H01J2235/1204 , H01J2235/1216 , H01J2235/122 , H01J2235/1295 , H01J2235/16 , H01J2235/167 , H05G1/06
Abstract: In a radiation imaging apparatus, an envelope has a first window for transmitting radiation and is filled with an insulating liquid, and a radiation tube in the envelope has, at a position facing the first window, a second window for transmitting the radiation, and a shielding member. A solid insulating member is arranged between the shielding member and the inner wall of the envelope, and an opening is formed at a position on the insulating member corresponding to the first window. The shortest distance from the shielding member to the first window or the inner wall of the envelope through the opening of the insulating member without the insulating member is made to be longer than the shortest distance from the shielding member to the first window or the inner wall of the envelope through the insulating member, thereby improving withstand voltage performance without reducing an radiation amount.
Abstract translation: 在放射线成像装置中,外壳具有用于透射辐射的第一窗口,并填充有绝缘液体,并且外壳中的辐射管在朝向第一窗口的位置处具有用于透射辐射的第二窗口, 屏蔽构件。 在屏蔽构件和封套的内壁之间设置有固体绝缘构件,并且在对应于第一窗口的绝缘构件上的位置处形成开口。 通过没有绝缘构件的绝缘构件的开口,从屏蔽构件到第一窗口或封套的内壁的最短距离比从屏蔽构件到第一窗口或内壁的最短距离 通过绝缘构件的封套,从而在不降低辐射量的情况下提高耐压性能。
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公开(公告)号:US20140203707A1
公开(公告)日:2014-07-24
申请号:US14235380
申请日:2012-07-26
Applicant: William P. King , Lane W. Martin , Patrick C. Fletcher
Inventor: William P. King , Lane W. Martin , Patrick C. Fletcher
Abstract: Provided herein are electron emission devices and device components for optical, electronic and optoelectronic devices, including cantilever-based MEMS and NEMS instrumentation. Devices of certain aspects of the invention integrate a dielectric, pyroelectric, piezoelectric or ferroelectric film on the receiving surface of a substrate having an integrated actuator, such as a temperature controller or mechanical actuator, optionally in the form of a cantilever device having an integrated heater-thermometer. Also provided are methods of making and using electron emission devices for a range of applications including sensing and imaging technology.
Abstract translation: 本文提供了用于光学,电子和光电子器件的电子发射器件和器件部件,包括基于悬臂的MEMS和NEMS仪器。 本发明的某些方面的装置将介质,热释电,压电或铁电薄膜集成在具有集成致动器(例如温度控制器或机械致动器)的基板的接收表面上,任选地呈悬臂装置的形式,其具有集成的加热器 -温度计。 还提供了制造和使用电子发射装置用于一系列应用的方法,包括感测和成像技术。
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公开(公告)号:US20130301804A1
公开(公告)日:2013-11-14
申请号:US13946113
申请日:2013-07-19
Applicant: Mark T. Dinsmore
Inventor: Mark T. Dinsmore
IPC: H01J35/06
CPC classification number: H01J35/06 , H01J1/15 , H01J35/14 , H01J2235/06
Abstract: An electrically heated planar cathode for use in miniature x-ray tubes may be spiral design laser cut from a thin tantalum alloy ribbon foil (with grain stabilizing features). Bare ribbon is mounted to an aluminum nitride substrate in a manner that is puts the ribbon in minimal tension before it is machined into the spiral pattern. The spiral pattern can be optimized for electrical, thermal, and emission characteristics.
Abstract translation: 用于微型X射线管的电加热平面阴极可以是从薄钽合金带状箔(具有晶粒稳定特征)切割的螺旋设计激光。 裸带以将其加工成螺旋图案之前将带状物放置在最小张力的方式安装到氮化铝基板上。 螺旋图案可以针对电气,热和发射特性进行优化。
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29.
公开(公告)号:US20130182825A1
公开(公告)日:2013-07-18
申请号:US13352641
申请日:2012-01-18
Applicant: James Russell Boye , Robert Clark Treseder
Inventor: James Russell Boye , Robert Clark Treseder
IPC: H01J35/06
CPC classification number: H01J35/06 , H01J35/14 , H01J35/30 , H01J2235/06
Abstract: An x-ray tube cathode with magnetic electron beam steering. In one example embodiment, an x-ray tube cathode includes a cathode head and an electron emitter. The cathode head includes electrically conductive and non-magnetic material integrated with magnetic material. The cathode head defines an emitter slot in a portion of electrically conductive and non-magnetic material positioned between two portions of magnetic material. The electron emitter is positioned within the emitter slot. The electron emitter is configured to emit a beam of electrons. The beam of electrons is configured to be both focused by the electrically conductive and non-magnetic material and steered during beam formation by the magnetic material.
Abstract translation: 具有磁电子束转向的X射线管阴极。 在一个示例性实施例中,x射线管阴极包括阴极头和电子发射器。 阴极头包括与磁性材料集成的导电和非磁性材料。 阴极头在位于磁性材料的两个部分之间的导电和非磁性材料的一部分中限定发射器狭缝。 电子发射器位于发射极槽内。 电子发射器被配置为发射电子束。 电子束被配置为由导电和非磁性材料聚焦,并且在通过磁性材料形成光束期间转向。
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公开(公告)号:US20120217231A1
公开(公告)日:2012-08-30
申请号:US13465941
申请日:2012-05-07
Applicant: Paul D. Moore , Stephen G. Bandy , Clifford K. Nishimoto , David H. Humber , Gary F. Virshup
Inventor: Paul D. Moore , Stephen G. Bandy , Clifford K. Nishimoto , David H. Humber , Gary F. Virshup
CPC classification number: H01J35/06 , H01J2235/06 , H01J2235/068
Abstract: One example embodiment includes methods for making electron emitters. The electron emitter comprises a conductive member that defines a plurality of filament segments that are integral with each other. Each filament segment includes an intermediate portion and an interconnecting portion attached to an adjacent filament segment. The intermediate portions are substantially coplanar with each other and each intermediate portion includes a substantially planar electron emission surface.
Abstract translation: 一个示例实施例包括用于制造电子发射器的方法。 电子发射器包括限定多个彼此成一体的细丝部分的导电部件。 每个细丝段包括中间部分和连接到相邻细丝部分的互连部分。 中间部分基本上彼此共面,并且每个中间部分包括基本上平面的电子发射表面。
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