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    Targets for generating ions and treatment apparatuses including the targets
    7.
    发明授权
    Targets for generating ions and treatment apparatuses including the targets 有权
    用于产生离子的目标和包括目标的处理装置

    公开(公告)号：US09024274B2

    公开(公告)日：2015-05-05

    申请号：US13868976

    申请日：2013-04-23

    Applicant: Electronics and Telecommunications Research Institute

    Inventor： Moon Youn Jung ,  Hyung Ju Park ,  Hyeon-Bong Pyo ,  Nam Soo Myung ,  Seunghwan Kim

    IPC: G21K5/04 ,  A61N5/10 ,  H01J27/02 ,  H01J27/24

    CPC classification number: A61N5/1077 ,  A61N2005/1088 ,  H01J27/02 ,  H01J27/24

    Abstract: Provided are an ion generation target and a treatment apparatus including the target. The treatment apparatus includes a grid having a net shape of nano wires, an ion generation thin film attached to a side of the grid and generating ions by means of an incident laser beam, and a laser for emitting a laser beam into the nano wire of the grid to generate ions from the ion generation thin film and project the ions onto a tumor portion of a patient. The laser beam emitted into the nano wire forms a near field, the intensity of which is higher than that of the laser beam through a nanoplasmonics phenomenon, and the near field emits the ions from the ion generation thin film.

    Abstract translation: 提供了一种离子产生靶和包括靶的处理装置。 处理装置包括具有纳米线的净形状的栅格，附着在栅格的一侧的离子产生薄膜，并且通过入射的激光束产生离子，以及用于将激光束发射到纳米线的纳米线中的激光 该网格从离子产生薄膜产生离子并将离子投射到患者的肿瘤部分上。 发射到纳米线中的激光束形成近场，其强度高于激光束的强度，并且近场从离子产生薄膜发射出离子。

    Ion Source Having Negatively Biased Extractor
    8.
    发明申请
    Ion Source Having Negatively Biased Extractor 有权
    具有负偏压提取器的离子源

    公开(公告)号：US20140263993A1

    公开(公告)日：2014-09-18

    申请号：US13830401

    申请日：2013-03-14

    Applicant: Schlumberger Technology Corporation

    Inventor： Luke Perkins ,  Benjamin Levitt ,  Peter Wraight ,  Arthur D. Liberman

    IPC: H01J37/08 ,  G01V5/04

    CPC classification number: H01J27/205 ,  G21G4/02 ,  H01J27/02 ,  H01J27/08 ,  H01J27/16

    Abstract: An ion source for use in a radiation generator includes a sealed envelope containing an ionizable gas therein. The ion source also includes a RF antenna external to the sealed envelope, the RF antenna to transmit time-varying electromagnetic fields within the sealed envelope for producing ions from the ionizable gas. There is at least one extractor within the sealed envelope having a potential such that the ions are attracted toward the at least one extractor.

    Abstract translation: 用于辐射发生器的离子源包括其中含有可电离气体的密封外壳。 离子源还包括在密封外壳外部的RF天线，RF天线用于传输密封外壳内的时变电磁场，用于从可电离气体产生离子。 密封外壳内有至少一个提取器具有使得离子被吸引到至少一个提取器的电位。

    METHOD FOR FABRICATING EMITTER
    9.
    发明申请
    METHOD FOR FABRICATING EMITTER 审中-公开
    制造发电机的方法

    公开(公告)号：US20140246397A1

    公开(公告)日：2014-09-04

    申请号：US14278760

    申请日：2014-05-15

    Applicant: HITACHI HIGH-TECH SCIENCE CORPORATION

    Inventor： Yasuhiko SUGIYAMA ,  Kazuo AITA ,  Fumio ARAMAKI ,  Tomokazu KOZAKAI ,  Osamu MATSUDA ,  Anto YASAKA

    IPC: H01J27/02

    CPC classification number: H01J27/02 ,  H01J1/15 ,  H01J1/3044 ,  H01J9/02 ,  H01J9/025 ,  H01J9/04 ,  H01J37/08 ,  H01J37/26 ,  H01J37/3056 ,  H01J2237/3174 ,  H01J2237/31749

    Abstract: A method for fabricating a sharpened needle-like emitter, the method including: electrolytically polishing an end portion of an electrically conductive emitter material so as to be tapered toward a tip portion thereof; performing a first etching in which the electrolytically polished part of the emitter material is irradiated with a charged-particle beam to form a pyramid-like sharpened part having a vertex including the tip portion; performing a second etching in which the tip portion is further sharpened through field-assisted gas etching, while observing a crystal structure at the tip portion by a field ion microscope and keeping the number of atoms at a leading edge of the tip portion at a predetermined number or less; and heating the emitter material to arrange the atoms at the leading edge of the tip portion of the sharpened part in a pyramid shape.

    Abstract translation: 一种用于制造尖锐的针状发射体的方法，该方法包括：电解抛光导电发射体材料的端部，使其朝其尖端部分逐渐变细; 进行第一蚀刻，其中用电荷粒子束照射发射体材料的电解抛光部分以形成具有包括尖端部分的顶点的棱锥状的锐化部分; 进行第二蚀刻，其中尖端部分通过场辅助气体蚀刻进一步锐化，同时通过场离子显微镜观察尖端部分处的晶体结构，并将尖端部分的前缘处的原子数保持在预定的 数量以下 并且加热发射体材料以将原子布置在尖锐部分的尖端部分的金字塔形状。

    Shielded capacitive electrode
    10.
    发明授权
    Shielded capacitive electrode 有权
    屏蔽电容电极

    公开(公告)号：US08481961B2

    公开(公告)日：2013-07-09

    申请号：US12368541

    申请日：2009-02-10

    Applicant: Michel Kireeff Covo

    Inventor： Michel Kireeff Covo

    IPC: G21K5/00

    CPC classification number: H01J27/02 ,  G01R19/0061 ,  G21K5/02 ,  H05H1/0081

    Abstract: A device is described, which is sensitive to electric fields, but is insensitive to stray electrons/ions and unlike a bare, exposed conductor, it measures capacitively coupled current while rejecting currents due to charged particle collected or emitted. A charged particle beam establishes an electric field inside the beam pipe. A grounded metallic box with an aperture is placed in a drift region near the beam tube radius. The produced electric field that crosses the aperture generates a fringe field that terminates in the back surface of the front of the box and induces an image charge. An electrode is placed inside the grounded box and near the aperture, where the fringe fields terminate, in order to couple with the beam. The electrode is negatively biased to suppress collection of electrons and is protected behind the front of the box, so the beam halo cannot directly hit the electrode and produce electrons. The measured signal shows the net potential (positive ion beam plus negative electrons) variation with time, as it shall be observed from the beam pipe wall.

    Abstract translation: 描述了对电场敏感但对杂散电子/离子不敏感的器件，与裸露的导体不同，它测量电容耦合电流，同时由于收集或发射的带电粒子而导致的电流被抑制。 带电粒子束在射束管内形成电场。 具有孔径的接地金属盒放置在射束管半径附近的漂移区域中。 产生的穿过孔的电场产生一个边缘区域，其终止于箱体前部的后表面并引起图像充电。 电极放置在接地箱内部和靠近孔口处，边缘区域终止，以便与梁耦合。 电极被负偏压以抑制电子的收集并且被保护在盒的前部之后，因此光束晕不能直接击中电极并产生电子。 测量的信号显示净电位（正离子束加负电子）随时间的变化，从梁管壁观察。

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