公开(公告)号：US08723137B1

公开(公告)日：2014-05-13

申请号：US14051665

申请日：2013-10-11

Applicant: Ruey-Jen Hwu ,  Jishi Ren ,  Jehn-Huar Chern ,  Laurence P. Sadwick

Inventor： Ruey-Jen Hwu ,  Jishi Ren ,  Jehn-Huar Chern ,  Laurence P. Sadwick

IPC: H01J25/02 ,  H01J25/10 ,  H01J3/08

CPC classification number: H01J3/32 ,  H01F7/0278 ,  H01J3/24 ,  H01J23/087 ,  H01J23/10 ,  H01J25/34

Abstract: Various embodiments of a vacuum electronic device, a hybrid magnet for a vacuum electronic device and methods of making a hybrid magnet for a vacuum electronic device are disclosed herein. In one embodiment, a hybrid magnet for a vacuum electronic device includes a first magnet, a second magnet positioned in spaced-apart relation with the first magnet and defining a gap between the first magnet and the second magnet, and a non-magnetic spacer positioned in a portion of the gap between the first magnet and second magnet and connected to the first magnet and the second magnet.

Abstract translation: 这里公开了真空电子器件，真空电子器件的混合磁体和制造用于真空电子器件的混合磁体的方法的各种实施例。 在一个实施例中，一种用于真空电子设备的混合磁体包括第一磁体，与第一磁体间隔开定位并在第一磁体和第二磁体之间限定间隙的第二磁体，以及非磁性间隔件 在第一磁体和第二磁体之间的间隙的一部分中并连接到第一磁体和第二磁体。

公开(公告)号：US20130071791A1

公开(公告)日：2013-03-21

申请号：US13612978

申请日：2012-09-13

Applicant: Keiichi Arita ,  Masahito Shinohara

Inventor： Keiichi Arita ,  Masahito Shinohara

IPC: H01J3/08 ,  G03F7/20 ,  H01J3/26

CPC classification number: H01J37/09 ,  B82Y10/00 ,  B82Y40/00 ,  H01J37/244 ,  H01J37/3177 ,  H01J2237/0453 ,  H01J2237/24507 ,  H01J2237/24585

Abstract: An irradiation apparatus includes: a measurement device including a shield in which plural apertures are formed, and plural detectors configured to respectively detect plural charged particle beams respectively having passed through the plural apertures; a scanning mechanism configured to perform scanning of the plural beams and the measurement device relative to each other so that the plural beams respectively traverse edges of the plural apertures; and a controller configured to perform control of the scanning mechanism and the measurement device to obtain a characteristic of each beam. The controller is configured to perform the control such that in a period of the scanning, an energy, shielded by the shield, out of an energy of one beam increases with time, while an energy, shielded by the shield, out of an energy of another beam decreases with time.

Abstract translation: 一种照射装置，包括：测量装置，包括形成有多个孔的屏蔽件，以及分别检测分别穿过所述多个孔的多个带电粒子束的多个检测器; 扫描机构，被配置为执行所述多个光束和所述测量装置相对于彼此的扫描，使得所述多个光束分别穿过所述多个孔的边缘; 以及控制器，被配置为执行扫描机构和测量装置的控制以获得每个光束的特性。 控制器被配置为执行控制，使得在扫描期间，由一个光束的能量中的被屏蔽屏蔽的能量随着时间而增加，而被屏蔽屏蔽的能量脱离了能量 另一个光束随时间而减小。

公开(公告)号：US20100133444A1

公开(公告)日：2010-06-03

申请号：US12558504

申请日：2009-09-12

Applicant: Vladimir Balakin

Inventor： Vladimir Balakin

IPC: A61N5/00 ,  H01J37/20 ,  H01J3/26 ,  H01J3/08

CPC classification number: A61N5/1049 ,  A61N5/10 ,  A61N5/1082 ,  A61N2005/1087 ,  H05H7/10 ,  H05H13/04

Abstract: The invention comprises a patient positioning method and apparatus used in conjunction with multi-axis charged particle or proton beam radiation therapy of cancerous tumors. The patient positioning system is used to translate the patient and/or rotate the patient into a zone where the proton beam can scan the tumor using a targeting system. The patient positioning system is optionally used in conjunction with systems used to constrain movement of the patient, such as semi-vertical, sitting, or laying positioning systems.

Abstract translation: 本发明包括与多轴带电粒子或癌肿瘤的质子束放射治疗结合使用的患者定位方法和装置。 患者定位系统用于翻译患者和/或将患者旋转到质子束可以使用靶向系统扫描肿瘤的区域。 患者定位系统可选地与用于限制患者的运动的系统结合使用，例如半垂直，坐着或铺设定位系统。

公开(公告)号：US10217599B2

公开(公告)日：2019-02-26

申请号：US14785730

申请日：2015-01-09

Applicant: TECHNOLOGY RESEARCH ASSOCIATION FOR FUTURE ADDITIVE MANUFACTURING

Inventor： Takashi Sato

IPC: H01J37/065 ,  H01J37/06 ,  H01J37/304 ,  B22F3/105 ,  H01J3/08 ,  H01J3/12 ,  B33Y30/00

Abstract: When an emission current is changed, a decrease in brightness of an electron beam is prevented. An electron gun includes a cathode that emits thermoelectrons, a Wehnelt electrode that focuses the thermoelectrons, a control electrode that extracts the thermoelectrons from a distal end of said cathode, an anode that accelerates the thermoelectrons and irradiates a powder with the thermoelectrons as an electron beam, and an optimum condition collection controller that changes at least one of a bias voltage to be applied to the Wehnelt electrode and a control electrode voltage to be applied to the control electrode, and decides a combination of the bias voltage and the control electrode voltage at which the brightness of the electron beam reaches a peak.

公开(公告)号：US20150270088A1

公开(公告)日：2015-09-24

申请号：US14621526

申请日：2015-02-13

Applicant: JEOL Ltd.

Inventor： Takashi Satoh

IPC: H01J3/08 ,  H01J3/02

CPC classification number: H01J3/08 ,  B22F3/1055 ,  B23K15/002 ,  B23K15/0026 ,  B23K15/0086 ,  B23K15/06 ,  B33Y30/00 ,  H01J3/02 ,  H01J3/024 ,  H01J3/027 ,  H01J37/063 ,  H01J37/305 ,  H01J2237/06308 ,  H01J2237/065 ,  H01J2237/3128 ,  Y02P10/295

Abstract: There is disclosed a method of controlling an electron gun without causing decreases in brightness of the electron beam if a current-limiting aperture cannot be used. The electron gun (10) has a cathode (11), a Wehnelt electrode (12), a control electrode (13), an anode (14), and a controller (22). The Wehnelt electrode (12) has a first opening (12c) in which the tip of the cathode is inserted, and focuses thermal electrons emitted from the tip of the cathode (11). The thermal electrons emitted from the tip of the cathode (11) are caused to pass into a second opening (13c) by the control electrode (13). The anode (14) accelerates the thermal electrons emitted from the cathode (11) such that the thermal electrons passed through the second opening (13c) pass through a third opening (14b) and impinge as an electron beam (B1) on a powdered sample (8). The controller (22) sets the bias voltage and the control voltage based on combination conditions of the bias voltage and control voltage to maintain the brightness of the beam constant.

Abstract translation: 如果不能使用限流孔，则公开了一种控制电子枪而不引起电子束亮度降低的方法。 电子枪（10）具有阴极（11），Wehnelt电极（12），控制电极（13），阳极（14）和控制器（22）。 Wehnelt电极（12）具有插入阴极顶端的第一开口（12c），并聚焦从阴极（11）的尖端发射的热电子。 从阴极（11）的顶端发射的热电子被控制电极（13）通入第二开口（13c）。 阳极（14）加速从阴极（11）发射的热电子，使得穿过第二开口（13c）的热电子通过第三开口（14b）并作为电子束（B1）撞击在粉末样品上 （8）。 控制器（22）基于偏置电压和控制电压的组合条件设置偏置电压和控制电压，以保持光束的亮度恒定。

公开(公告)号：US20050078789A1

公开(公告)日：2005-04-14

申请号：US10681756

申请日：2003-10-08

Applicant: Robert Miller

Inventor： Robert Miller

IPC: A23L3/26 ,  A61L2/08 ,  A61L2/26 ,  G21G4/00 ,  G21H20060101 ,  G21K5/00 ,  G21K5/04 ,  G21K5/08 ,  G21K5/10 ,  H01J3/08 ,  H01J35/14 ,  H01J35/30

CPC classification number: A61L2/082 ,  A23L3/263 ,  A61L2/087 ,  G21K5/04 ,  G21K5/10

Abstract: This invention is advantageous in irradiating pallets which cannot be irradiated by conventional techniques, even by x-rays, throughout their complete volumes. In one embodiment, a scan horn scans electron beamlets through a sweep angle. A dipole bends the electron beamlets to focus the electron beamlets at the pallet center. After being bent, the beam becomes converted to x-rays which are irradiated through the pallet to the pallet center. During this irradiation, the pallet is moved in a direction substantially perpendicular to the irradiation. In this way, a quarter of the pallet is irradiated. When the quadrant radiation is completed, the radiation is interrupted and the pallet is rotated 90° to have a second side of the pallet face the radiation. The operation is sequentially repeated for each of the pallet sides. The four (4) irradiated quadrants define the pallet's complete cross-sectional area.

Abstract translation: 本发明在其整个体积内，即使通过X射线照射也不能用常规技术照射的托盘是有利的。 在一个实施例中，扫描喇叭通过扫掠角扫描电子束。 偶极弯曲电子束以将电子束聚焦在托盘中心处。 弯曲后，梁被转换成通过托盘照射到托盘中心的X射线。 在该照射期间，托盘在基本上垂直于照射的方向上移动。 以这种方式，四分之一的托盘被照射。 当象限辐射完成时，辐射被中断，托盘旋转90°以使托盘的第二面面对辐射。 对于每个托盘侧面顺序地重复操作。 四（4）个照射的象限定义了托盘的完整横截面积。

公开(公告)号：US5386172A

公开(公告)日：1995-01-31

申请号：US882436

申请日：1992-05-13

Applicant: Hiroshi Komatsu

Inventor： Hiroshi Komatsu

IPC: H01J1/304 ,  H01J1/46 ,  H01J1/52 ,  H01J3/08 ,  H01J3/40 ,  H01J9/02 ,  H01J19/24 ,  H01J19/38 ,  H01J21/10 ,  H01J1/02 ,  H01J1/16

CPC classification number: H01J21/105 ,  H01J1/3042 ,  H01J9/025

Abstract: A multiple electrode field electron emission device is formed on an insulating layer disposed on a surface of an insulated flat substrate and has a cathode with multiple of emission projections each having a projection tip that overhangs the insulating layer. The device further includes an anode for collecting electrons ejected from the cathode emission projections formed on the surface of the substrate. Control electrodes, having one of several alternate configurations, are formed between the cathode and the anode. The device is fabricated using over-etching and directional particulate deposition techniques.

Abstract translation: 在设置在绝缘平坦基板的表面上的绝缘层上形成多电极场电子发射装置，并且具有多个发射突起的阴极，每个发射突起均具有突出绝缘层的突出端。 该装置还包括用于收集从形成在基板的表面上的阴极发射突起喷出的电子的阳极。 在阴极和阳极之间形成具有若干备选配置之一的控制电极。 该器件使用过蚀刻和定向微粒沉积技术制造。

公开(公告)号：US4150319A

公开(公告)日：1979-04-17

申请号：US835616

申请日：1977-09-22

Applicant: David J. Nowak ,  James E. Rice ,  Donald R. Bianco

Inventor： David J. Nowak ,  James E. Rice ,  Donald R. Bianco

IPC: G21K1/04 ,  H01J1/88 ,  H01J3/08 ,  H01J1/46 ,  H01J1/52 ,  H01J17/04 ,  H01J17/12

CPC classification number: H01J49/061 ,  G21K1/04 ,  H01J1/88 ,  H01J3/08 ,  G01N27/622

Abstract: A grid gates a stream of ions when a D.C. potential is applied between two sets of interdigitated wires included in the grid to produce a D.C. field. The improved grid disclosed herein contains the two sets of interdigitated wires in a single plane so that the D.C. field is precisely normal to the ion current flow direction to prevent a residual ion current flow when the grid provides the gating effect.

Abstract translation: 当在电网中包括的两组交叉电线之间施加直流电位以产生直流电场时，栅极栅极离子流。 本文公开的改进的电网在单个平面中包含两组交叉导线，使得直流电场精确地垂直于离子电流流动方向，以防止当栅极提供门控效应时残留的离子电流流动。

公开(公告)号：US09287030B2

公开(公告)日：2016-03-15

申请号：US13116699

申请日：2011-05-26

Applicant: Franc Zajc

Inventor： Franc Zajc

IPC: H01F7/06 ,  H01F7/127 ,  H02K15/02 ,  H02K15/03 ,  H01F27/245 ,  H01F27/25 ,  H01F27/26 ,  H01F27/28 ,  H01J3/14 ,  G11B5/17 ,  H01J3/08

CPC classification number: H01F7/06 ,  G11B5/17 ,  H01F7/127 ,  H01F27/245 ,  H01F27/25 ,  H01F27/26 ,  H01F27/263 ,  H01F27/2828 ,  H01F27/2847 ,  H01F2027/2861 ,  H01J3/08 ,  H01J3/14 ,  H02K15/024 ,  H02K15/03 ,  Y10T29/4902 ,  Y10T29/49075 ,  Y10T29/49078 ,  Y10T29/49126

Abstract: A multi-gap inductor core includes magnetic lamination sheets made of magnetic core material arranged in a stack, and fixing layers made of a fixing material. Each fixing layer is arranged between a corresponding pair of adjacent magnetic lamination sheets. Each fixing layer also includes an embedded mechanical spacer that defines a gap having a predetermined thickness between a corresponding pair of adjacent magnetic lamination sheets.

Abstract translation: 多间隙电感器芯包括由堆叠形成的磁芯材料制成的磁性层压片和由固定材料制成的固定层。 每个固定层布置在相应的一对相邻的磁性层压片之间。 每个固定层还包括嵌入的机械间隔件，其限定了在相应的一对相邻的磁性层压片之间具有预定厚度的间隙。

公开(公告)号：US09269520B2

公开(公告)日：2016-02-23

申请号：US14621526

申请日：2015-02-13

Applicant: JEOL Ltd.

Inventor： Takashi Satoh

IPC: H01J29/58 ,  H01J3/08 ,  H01J3/02 ,  H01J37/063 ,  H01J37/305 ,  B23K15/00 ,  B23K15/06 ,  B33Y30/00

CPC classification number: H01J3/08 ,  B22F3/1055 ,  B23K15/002 ,  B23K15/0026 ,  B23K15/0086 ,  B23K15/06 ,  B33Y30/00 ,  H01J3/02 ,  H01J3/024 ,  H01J3/027 ,  H01J37/063 ,  H01J37/305 ,  H01J2237/06308 ,  H01J2237/065 ,  H01J2237/3128 ,  Y02P10/295

Abstract: There is disclosed a method of controlling an electron gun without causing decreases in brightness of the electron beam if a current-limiting aperture cannot be used. The electron gun (10) has a cathode (11), a Wehnelt electrode (12), a control electrode (13), an anode (14), and a controller (22). The Wehnelt electrode (12) has a first opening (12c) in which the tip of the cathode is inserted, and focuses thermal electrons emitted from the tip of the cathode (11). The thermal electrons emitted from the tip of the cathode (11) are caused to pass into a second opening (13c) by the control electrode (13). The anode (14) accelerates the thermal electrons emitted from the cathode (11) such that the thermal electrons passed through the second opening (13c) pass through a third opening (14b) and impinge as an electron beam (B1) on a powdered sample (8). The controller (22) sets the bias voltage and the control voltage based on combination conditions of the bias voltage and control voltage to maintain the brightness of the beam constant.

Abstract translation: 如果不能使用限流孔，则公开了一种控制电子枪而不引起电子束亮度降低的方法。 电子枪（10）具有阴极（11），Wehnelt电极（12），控制电极（13），阳极（14）和控制器（22）。 Wehnelt电极（12）具有插入阴极顶端的第一开口（12c），并聚焦从阴极（11）的尖端发射的热电子。 从阴极（11）的顶端发射的热电子被控制电极（13）通入第二开口（13c）。 阳极（14）加速从阴极（11）发射的热电子，使得穿过第二开口（13c）的热电子通过第三开口（14b）并作为电子束（B1）撞击在粉末样品上 （8）。 控制器（22）基于偏置电压和控制电压的组合条件设置偏置电压和控制电压，以保持光束的亮度恒定。