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    Discharge device having cathode with micro hollow array
    81.
    发明授权
    Discharge device having cathode with micro hollow array 失效
    具有阴极和微空心阵列的放电装置

    公开(公告)号：US5686789A

    公开(公告)日：1997-11-11

    申请号：US403477

    申请日：1995-03-14

    Applicant: Karl H. Schoenbach ,  Wojciech W. Byszewski ,  Frank E. Peterkin ,  Amin N. Dharamsi

    Inventor： Karl H. Schoenbach ,  Wojciech W. Byszewski ,  Frank E. Peterkin ,  Amin N. Dharamsi

    IPC: H01J1/02 ,  H01J1/62 ,  H01J27/26 ,  H01J61/06 ,  H01J61/067 ,  H01J61/09 ,  H01J61/12 ,  H01J61/20 ,  H01J61/66 ,  H01J61/72 ,  H01S3/038

    CPC classification number: H01J3/025 ,  H01J1/025 ,  H01J17/04 ,  H01J17/06 ,  H01J27/08 ,  H01J3/04 ,  H01J61/067 ,  H01J61/09 ,  H01J61/12 ,  H01J61/305 ,  H01J61/66 ,  H01J61/72 ,  H01S3/0385 ,  H01J61/78 ,  H01S3/03 ,  H01S3/0382 ,  H01S3/2383

    Abstract: A discharge device for operation in a gas at a prescribed pressure includes a cathode having a plurality of micro hollows therein, and an anode spaced from the cathode. Each of the micro hollows has dimensions selected to produce a micro hollow discharge at the prescribed pressure. Preferably, each of the micro hollows has a cross-sectional dimension that is on the order of the mean free path of electrons in the gas. Electrical energy is coupled to the cathode and the anode at a voltage and current for producing micro hollow discharges in each of the micro hollows in the cathode. The discharge device may include a discharge chamber for maintaining the prescribed pressure. A dielectric layer may be disposed on the cathode when the spacing between the cathode and the anode is greater than about the mean free path of electrons in the gas. Applications of the discharge device include fluorescent lamps, excimer lamps, flat fluorescent light sources, miniature gas lasers, electron sources and ion sources.

    Abstract translation: 用于在规定压力下操作气体的放电装置包括其中具有多个微型空腔的​​阴极和与阴极间隔开的阳极。 每个微型空腔具有选定的尺寸以在规定的压力下产生微细的中空排出。 优选地，每个微型空腔的​​横截面尺寸都是气体中电子的平均自由程的数量级。 电能以负极和电流耦合到阴极和阳极，用于在阴极中的每个微型空腔中产生微空心放电。 排出装置可以包括用于维持规定压力的排出室。 当阴极和阳极之间的间隔大于气体中电子的平均自由程时，电介质层可以设置在阴极上。 放电装置的应用包括荧光灯，准分子灯，平面荧光光源，微型气体激光器，电子源和离子源。

    SOURCE HOUSING ASSEMBLY FOR CONTROLLING ION BEAM EXTRACTION STABILITY AND ION BEAM CURRENT
    82.
    发明申请
    SOURCE HOUSING ASSEMBLY FOR CONTROLLING ION BEAM EXTRACTION STABILITY AND ION BEAM CURRENT 有权
    用于控制离子束提取稳定性和离子束电流的源壳体组件

    公开(公告)号：US20160336138A1

    公开(公告)日：2016-11-17

    申请号：US14713573

    申请日：2015-05-15

    Applicant: Varian Semiconductor Equipment Associates, Inc.

    Inventor： Shengwu Chang ,  Jeff Burgess ,  William Leavitt ,  Michael St Peter ,  Matt Mosher ,  Joe Olson ,  Frank Sinclair

    IPC: H01J27/08 ,  H01J9/18 ,  H01J9/385 ,  H01J27/02

    CPC classification number: H01J27/08 ,  H01J3/04 ,  H01J5/02 ,  H01J9/18 ,  H01J9/385 ,  H01J27/024 ,  H01J37/08

    Abstract: Provided herein are approaches for improving ion beam extraction stability and ion beam current for an ion extraction system. In one approach, a source housing assembly may include a source housing surrounding an ion source including an arc chamber, the source housing having an extraction aperture plate mounted at a proximal end thereof. The source housing assembly further includes a vacuum liner disposed within an interior of the source housing to form a barrier around a set of vacuum pumping apertures. As configured, openings in the source housing assembly, other than an opening in the extraction aperture plate, are enclosed by the extraction aperture plate and the vacuum liner, thus ensuring appendix arcs or extraneous ions produced outside the arc chamber remain within the source housing. Just those ions produced within the arc chamber exit the source housing through the opening of the extraction aperture plate.

    Abstract translation: 本文提供了用于改进离子提取系统的离子束提取稳定性和离子束电流的方法。 在一种方法中，源壳体组件可以包括围绕包括电弧室的离子源的源壳体，源壳体具有安装在其近端处的抽吸孔板。 源壳体组件还包括设置在源壳体的内部中以在一组真空泵浦孔周围形成屏障的真空衬套。 根据构造，源壳体组件中除了抽吸孔板中的开口之外的开口被提取孔板和真空衬套包围，从而确保在电弧室外产生的附加电弧或外来离子保留在源壳体内。 恰好在电弧室内产生的那些离子通过提取孔板的开口离开源壳体。

    Integrated field emission array for ion desorption
    83.
    发明授权
    Integrated field emission array for ion desorption 有权

    公开(公告)号：US09425019B1

    公开(公告)日：2016-08-23

    申请号：US14640655

    申请日：2015-03-06

    Applicant: Sandia Corporation ,  Christopher Holland ,  David Chichester

    Inventor： Paul J. Resnick ,  Kristin L. Hertz ,  Christopher Holland ,  David Chichester

    IPC: H01L29/06 ,  H01J9/02 ,  H01L21/311

    CPC classification number: H01J9/02 ,  H01J3/04 ,  H01L21/31111

    Abstract: An integrated field emission array for ion desorption includes an electrically conductive substrate; a dielectric layer lying over the electrically conductive substrate comprising a plurality of laterally separated cavities extending through the dielectric layer; a like plurality of conically-shaped emitter tips on posts, each emitter tip/post disposed concentrically within a laterally separated cavity and electrically contacting the substrate; and a gate electrode structure lying over the dielectric layer, including a like plurality of circular gate apertures, each gate aperture disposed concentrically above an emitter tip/post to provide a like plurality of annular gate electrodes and wherein the lower edge of each annular gate electrode proximate the like emitter tip/post is rounded. Also disclosed herein are methods for fabricating an integrated field emission array.

    Ion source with cathode having an array of nano-sized projections
    87.
    发明授权
    Ion source with cathode having an array of nano-sized projections 有权
    具有阴极的离子源具有纳米尺寸的突起阵列

    公开(公告)号：US08866068B2

    公开(公告)日：2014-10-21

    申请号：US13728950

    申请日：2012-12-27

    Applicant: Schlumberger Technology Corporation

    Inventor： Jani Reijonen ,  Luke Perkins ,  Harold Pfutzner

    IPC: G01V5/00 ,  H01J27/20 ,  G01V5/08

    CPC classification number: H01J27/205 ,  G01V5/085 ,  H01J1/3044 ,  H01J3/04 ,  H01J2201/30411

    Abstract: An ion source for use in a particle accelerator includes at least one cathode. The at least one cathode has an array of nano-sized projections and an array of gates adjacent the array of nano-sized projections. The array of nano-sized projections and the array of gates have a first voltage difference such that an electric field in the cathode causes electrons to be emitted from the array of nano-sized projections and accelerated downstream. There is a ion source electrode downstream of the at least one cathode, and the at least one cathode and the ion source electrode have the same voltage applied such that the electrons enter the space encompassed by the ion source electrode, some of the electrons as they travel within the ion source electrode striking an ionizable gas to create ions.

    Abstract translation: 用于粒子加速器的离子源包括至少一个阴极。 所述至少一个阴极具有纳米尺寸突起的阵列和邻近纳米尺寸突起阵列的门阵列。 纳米尺寸突起阵列和栅极阵列具有第一电压差，使得阴极中的电场使电子从纳米尺寸突起阵列发射并加速下游。 在至少一个阴极的下游存在离子源电极，并且至少一个阴极和离子源电极施加相同的电压，使得电子进入由离子源电极包围的空间中，一些电子就像它们 在离子源电极内行进进入可电离气体以产生离子。

    TARGET FOR GENERATING POSITIVE IONS, METHOD OF FABRICATING THE SAME, AND TREATMENT APPARATUS USING THE TARGET
    89.
    发明申请
    TARGET FOR GENERATING POSITIVE IONS, METHOD OF FABRICATING THE SAME, AND TREATMENT APPARATUS USING THE TARGET 有权
    用于产生积极离子的目标，制备它的方法和使用目标的治疗装置

    公开(公告)号：US20140135562A1

    公开(公告)日：2014-05-15

    申请号：US13919960

    申请日：2013-06-17

    Applicant: Electronics and Telecommunications Research Institute

    Inventor： Moon Youn JUNG ,  Hyeon-Bong PYO ,  Dong-Ho SHIN ,  Seunghwan KIM

    IPC: H01J27/02 ,  A61N5/10

    CPC classification number: H01J3/04 ,  A61N5/10 ,  A61N2005/1088 ,  H01J27/02 ,  H01J27/022 ,  H01J27/24

    Abstract: Provided is an ion beam treatment apparatus. The treatment apparatus includes a target for generating positive ions including a thin film for generating positive ions and nanowires disposed on at least one side of the thin film for generating positive ions, and a laser for emitting a laser beam incident on nanowires to project positive ions to a tumor region of a patient by generating the positive ions from the thin film for generating positive ions. Each of the nanowires may include a metal nanocore and a polymer shell surrounding the metal nanocore. The laser beam incident on the nanowires forms surface plasmon resonance, a near field having an intensity enhanced more than an intensity of the laser beam is formed by the surface plasmon resonance, and the positive ions are emitted from the thin film for generating positive ions by the near field.

    Abstract translation: 提供了一种离子束处理装置。 该处理装置包括用于产生正离子的目标物，其包括用于产生正离子的薄膜和设置在该薄膜的至少一侧上的用于产生正离子的纳米线，以及用于发射入射到纳米线上以投射正离子的激光束的激光 通过从薄膜产生正离子以产生正离子到患者的肿瘤区域。 每个纳米线可以包括金属纳米孔和围绕金属纳米孔的聚合物壳。 入射到纳米线上的激光束形成表面等离子体共振，通过表面等离子体共振形成具有比激光束强度增强的强度的近场，并且从薄膜发射正离子以产生正离子 近场。

    Proton beam positioning verification method and apparatus used in conjunction with a charged particle cancer therapy system
    90.
    发明授权
    Proton beam positioning verification method and apparatus used in conjunction with a charged particle cancer therapy system 有权
    与带电粒子癌症治疗系统结合使用的质子束定位验证方法和装置

    公开(公告)号：US08178859B2

    公开(公告)日：2012-05-15

    申请号：US12618718

    申请日：2009-11-14

    Applicant: Vladimir Balakin

    Inventor： Vladimir Balakin

    IPC: A61N5/00

    CPC classification number: H05H7/10 ,  A61N5/1048 ,  A61N5/1067 ,  A61N2005/1087 ,  H01J3/04 ,  H01J3/14 ,  H05H13/04

    Abstract: The invention comprises a proton beam positioning method and apparatus used in conjunction with multi-axis charged particle radiation therapy of cancerous tumors. The proton beam verification system allows for monitoring of the actual proton beam position in real-time without destruction of the proton beam. The system includes a coating or thin layer substantially in contact with a foil covering the end of an exit nozzle or is a layer located after the x- and y-axis proton beam scanning controllers and before the patient. The coating yields a measurable spectroscopic response, spatially viewable by the detector, as a result of transmission by the proton beam. The proton beam position is monitored by the detector and compared to the calibration and/or treatment plan to verify accurate proton delivery to the tumor and/or as a proton beam shutoff safety indicator.

    Abstract translation: 本发明包括与癌肿瘤的多轴带电粒子放射治疗结合使用的质子束定位方法和装置。 质子束验证系统允许实时监测实际的质子束位置，而不破坏质子束。 该系统包括基本上与覆盖出口喷嘴的端部的箔接触的涂层或薄层，或者是位于x轴和y轴质子束扫描控制器之后且位于患者之前的层。 作为质子束传输的结果，涂层产生可测量的光谱响应，由检测器空间可见。 质子束位置由检测器监测，并与校准和/或治疗计划进行比较，以验证对肿瘤的精确质子传递和/或作为质子束截止安全指示剂。

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