公开(公告)号：US3705320A

公开(公告)日：1972-12-05

申请号：US3705320D

申请日：1970-01-19

Applicant: ATOMIC ENERGY AUTHORITY UK

Inventor： FREEMAN JAMES HARRY

IPC: B01D59/44 ,  H01J49/10 ,  H01J49/12 ,  H01J3/04 ,  H01J3/10

CPC classification number: B01D59/44 ,  H01J49/10 ,  H01J49/12

Abstract: An ion source for an electromagnetic separator is tiltably mounted upon the ion beam passageway. Adjustment of the inclination to the passageway of the ion beam trajectory is thus provided.

公开(公告)号：US07368734B2

公开(公告)日：2008-05-06

申请号：US10574281

申请日：2004-12-28

Applicant: Sei Umisedo ,  Nariaki Hamamoto

Inventor： Sei Umisedo ,  Nariaki Hamamoto

IPC: H01J3/10

CPC classification number: H01J37/3171 ,  H01J37/244 ,  H01J2237/24405 ,  H01J2237/2446 ,  H01J2237/24507 ,  H01J2237/31703 ,  H01L21/26586

Abstract: A beam current density distribution in y direction of an ion beam 4 at a position of a forestage beam restricting shutter 32 is measured by measuring a change in a beam current of the ion beam 4 incident on a forestage multipoint Faraday 24 by passing an outer side of a side 34 of the shutter 32 while driving the forestage beam restricting shutter 32 in y direction by a forestage shutter driving apparatus 36. Further, a beam current density distribution in y direction of the ion beam 4 at a position of a poststage beam restricting shutter 42 is measured by measuring a change in the beam current of the ion beam 4 incident on a poststage multipoints Faraday 28 by passing an outer side of a side 44 of the shutter 42 while driving the poststage beam restricting shutter 42 in y direction by a poststage shutter driving apparatus 46. Further, at least one of an angle deviation, a diverging angle and abeam side in y direction of the ion beam 4 is measured by using a result of the measurement.

Abstract translation: 通过测量入射在森林多点法拉第24上的离子束4的射束电流的变化，测量离子束4在森林束限制闸门32的位置处的y方向上的束流密度分布，通过使外侧 同时通过森林快门驱动装置36在y方向上驱动森林光束限制快门32，同时快门32的侧面34。 此外，通过测量入射在后级多点法拉第28上的离子束4的射束电流的变化来测量离子束4在后级束限制闸门42的位置的y方向上的束流密度分布， 同时通过后级快门驱动装置46驱动后级束限制快门42在y方向上的快门42的侧面44的外侧。 此外，通过使用测量结果测量离子束4的y方向上的角度偏差，发散角度和光焦度中的至少一个。

公开(公告)号：US5764664A

公开(公告)日：1998-06-09

申请号：US650009

申请日：1996-05-17

Applicant: Kwok Leung Yip ,  Richard Frank Kerr ,  Sreeram Dhurjaty

Inventor： Kwok Leung Yip ,  Richard Frank Kerr ,  Sreeram Dhurjaty

IPC: H04N1/40 ,  H01J3/10

CPC classification number: H04N1/40043 ,  H04N1/40037

Abstract: A laser imaging apparatus comprising: a laser diode which is always operable in a linear lasing region; an amplitude modulator for amplitude modulating said laser diode for a digital image signal applied to said laser diode, when said digital image signal has a code value in a first range of code values in the mid to high range of signal code values; and a high speed pulse width modulator for pulse width modulating said laser diode when said digital signal, which is applied to said laser diode, has a code value in a second range of code values below said first range of code values, said laser diode being operated at a constant predetermined power level which is above the threshold power level of said laser diode.

Abstract translation: 一种激光成像设备，包括：激光二极管，其总是可在线性激光区域中操作; 当所述数字图像信号在信号码值的中间到高范围内的码值的第一范围内具有代码值时，用于对施加到所述激光二极管的数字图像信号幅度调制所述激光二极管的幅度调制器; 以及高速脉冲宽度调制器，用于当施加到所述激光二极管的所述数字信号具有低于所述第一代码值范围的第二代码值范围内的代码值时，脉冲宽度调制所述激光二极管，所述激光二极管为 以高于所述激光二极管的阈值功率电平的恒定的预定功率电平工作。

公开(公告)号：US4275317A

公开(公告)日：1981-06-23

申请号：US23485

申请日：1979-03-23

Applicant: Robert A. Administrator of the National Aeronautics and Space Administration, with respect to an invention of Frosch ,  James B. Laudenslager ,  Thomas J. Pacala

Inventor： Robert A. Administrator of the National Aeronautics and Space Administration, with respect to an invention of Frosch ,  James B. Laudenslager ,  Thomas J. Pacala

IPC: H01S3/097 ,  H03K17/00 ,  H03K17/80 ,  G11C13/02 ,  H01J3/10

CPC classification number: H01S3/097 ,  H03K17/80 ,  H03K2217/0036

Abstract: A saturable inductor switch for compressing the width and sharpening the rise time of high voltage pulses from a relatively slow rise time, high voltage generator to an electric discharge gas laser (EDGL). The switch also provides a capability for efficient energy transfer from a high impedance primary source to an intermediate low impedance laser discharge network. More specifically, a saturable inductor switch is positioned with respect to a capacitive storage device, such as a coaxial cable, so that when a charge build-up in the storage device reaches a predetermined level, saturation of the switch inductor releases or switches energy stored in the capacitive storage device to the EDGL. Also disclosed are cascaded saturable inductor switches for providing output pulses having rise times of less than ten nanoseconds as required for efficient excitation of EDGL's, the pulse rise time being determined by the thickness of a high permeability material forming the saturable inductor switch. In addition, a technique for magnetically biasing the saturable inductor switch is disclosed so that only pulses from a pulse generator having one polarity are passed and pulses having the other polarity are blocked, thereby improving the lifetime of electrical components that are sensitive to voltage reversals.

Abstract translation: 一种可饱和电感开关，用于压缩宽度，并将高电压脉冲的上升时间从相对较慢的上升时间，高电压发生器到放电气体激光器（EDGL）进行锐化。 该开关还提供了从高阻抗初级源到中间低阻抗激光放电网络的有效能量传输的能力。 更具体地，可饱和电感器开关相对于诸如同轴电缆的电容性存储装置定位，使得当存储装置中的电荷积聚达到预定水平时，开关电感器的饱和度释放或切换存储的能量 在电容式存储设备中进行EDGL。 还公开了级联可饱和电感器开关，用于提供具有小于10纳秒的上升时间的输出脉冲，用于EDGL的有效激发所需的脉冲上升时间由形成可饱和电感器开关的高磁导率材料的厚度确定。 此外，公开了用于对可饱和电感器开关进行磁偏置的技术，使得仅来自具有一个极性的脉冲发生器的脉冲通过，并且具有另一极性的脉冲被阻挡，从而提高对电压反转敏感的电气部件的寿命。

公开(公告)号：US5640405A

公开(公告)日：1997-06-17

申请号：US593134

申请日：1996-02-01

Applicant: Richard W. Wallace ,  Walter R. Bosenberg ,  Jason I. Alexander

Inventor： Richard W. Wallace ,  Walter R. Bosenberg ,  Jason I. Alexander

IPC: G02F1/35 ,  G02F1/39 ,  H01S3/08 ,  H01J3/10

CPC classification number: G02F1/3532 ,  G02F1/39 ,  G02F2001/3548 ,  H01S3/08086

Abstract: A laser system in which an intense laser beam of a predefined pumping wavelength traverses a non-linear material, such as crystalline lithium niobate, that has been impressed with one or more quasi phase matching (QPM) gratings is disclosed. Quasi phase matching compensates for the dispersion or birefringence in a non-linear material by modulating the non-linearity with the proper period such that the different wavelengths involved in the non-linear process stay in phase over a long interaction length. The first QPM grating promotes the parametric generation of a resonant signal whose wavelength is determined by the grating period. According to the invention, either a second QPM grating impressed in the same medium or a different order of the first QPM grating promotes the non-linear interaction between the resonant signal and another optical signal traversing the non-linear material. The multi-step process allows efficient generation of high power radiation in wavelength regions, such as the blue, or red, not easily accessible otherwise.

Abstract translation: 公开了一种激光系统，其中预定的泵浦波长的激光束穿过已经被一个或多个准相位匹配（QPM）光栅照射的非线性材料，例如晶体铌酸锂。 准相位匹配通过以适当的周期调制非线性来补偿非线性材料中的色散或双折射，使得非线性过程中涉及的不同波长在长的相互作用长度上保持同相。 第一个QPM光栅促进了波长由光栅周期决定的谐振信号的参数产生。 根据本发明，施加在相同介质中的第二QPM光栅或者第一QPM光栅的不同顺序促进了谐振信号和穿过非线性材料的另一光信号之间的非线性相互作用。 多步骤过程允许在波长区域（例如蓝色或红色）中有效地产生高功率辐射，否则不容易获得。

公开(公告)号：US3842279A

公开(公告)日：1974-10-15

申请号：US31217772

申请日：1972-12-04

Applicant: WESTINGHOUSE ELECTRIC CORP

Inventor： SCHUMACHER B

IPC: E21B7/15 ,  E21C37/00 ,  E21C37/16 ,  E21C37/18 ,  E21D9/10 ,  H01J3/10 ,  H01J37/147 ,  H01J37/301 ,  H01J37/00 ,  G01N23/00

CPC classification number: E21C41/16 ,  E21C37/16 ,  E21C37/18 ,  E21D9/1073 ,  H01J37/1471 ,  H01J37/301

Abstract: There is disclosed apparatus for mining and excavating through rocky terrain without a mechanical tool or machine which must be made rugged enough to withstand the forces and impacts necessary to break rocks. The excavation is carried out with an electron beam which is projected against the rock. The beam is conducted from a generator through a long tube, which may be 20 feet long or more through one or more internal apertures, and is emitted at the end of the tube through an exit aperture. The generator and tube may be mounted on the turret of a vehicle so that the tube can swing in an arc of large angle in the plane of a rocky seam or at any angle transverse to this plane. The beam is centered in, at least, the exit aperture by apparatus which responds to any uneven generation of X-Rays around the periphery of the exit aperture.

Abstract translation: 公开了在没有机械工具或机器的情况下通过岩石地采矿和挖掘的设备，该机械工具或机器必须足够坚固以承受破碎所需的力和冲击。 挖掘是用投射在岩石上的电子束进行的。 光束从发生器通过长管传导，长管可以通过一个或多个内部孔径为20英尺长或更长，并且通过出口孔在管的端部处发射。 发电机和管可以安装在车辆的转塔上，使得管可以在岩石接缝的平面中或以与该平面相交的任何角度以大角度的弧形摆动。 光束至少在出口孔中心，该装置响应于出射孔周边的任何不均匀的X射线产生。

公开(公告)号：US3694687A

公开(公告)日：1972-09-26

申请号：US3694687D

申请日：1970-08-12

Applicant: COLUMBIA BROADCASTING SYST INC

Inventor： GLENN WILLIAM ELLIS

IPC: H01J3/10 ,  H01J37/063 ,  H01J37/065 ,  H01J29/74 ,  H01J29/02 ,  H01J29/82

CPC classification number: H01J37/063 ,  H01J3/10 ,  H01J37/065

Abstract: In an electron gun, an anode structure in which the electron beam aperture is defined by four mutually insulated anode segments which may be energized to provide beam centering. In a preferred embodiment, the anode segments are shaped to intercept the beam if it is off-center, and are returned to ground potential through respective resistors thereby being operative automatically to center the beam.

Abstract translation: 在电子枪中，阳极结构中电子束孔由四个相互绝缘的阳极段限定，阳极段可被激励以提供光束对中。 在一个优选实施例中，如果阳极段偏心，则阳极段被成形为截取光束，并且通过相应的电阻器返回到接地电位，从而自动地使光束中心。

公开(公告)号：US3245794A

公开(公告)日：1966-04-12

申请号：US23378062

申请日：1962-10-29

Applicant: IHILCO CORP

Inventor： CONLEY JAMES W

IPC: C23F1/02 ,  G03B27/53 ,  H01J3/10

CPC classification number: G03B27/53 ,  C23F1/02 ,  H01J3/10 ,  Y10S438/948

公开(公告)号：US12145006B2

公开(公告)日：2024-11-19

申请号：US17970410

申请日：2022-10-20

Applicant: Varian Medical Systems, Inc.

Inventor： Mark Everett Trail ,  James Edward Clayton

IPC: A61N5/10 ,  H01J3/10 ,  H01J35/06 ,  H01J35/14 ,  H01J37/07 ,  H01J37/073 ,  H01J37/075 ,  H05H9/00 ,  H01J3/02 ,  H01J37/147

Abstract: Presented systems and methods facilitate efficient and effective monitoring of particle beams. In some embodiments, a radiation gun system comprises: a particle beam gun that generates a particle beam, and a gun control component that controls the gun particle beam generation characteristics, including particle beam fidelity characteristics. The particle beam characteristics can be compatible with FLASH radiation therapy. Resolution control of the particle beam generation can enable dose delivery at an intra-pulse level and micro-bunch level. The micro-bunch can include individual bunches per each 3 GHz RF cycle within the 5 to 15 μsec pulse-width. The FLASH radiation therapy dose delivery can have a bunch level resolution of approximately 4.4×10{circumflex over ( )}-6 cGy/bunch.

公开(公告)号：US08215011B2

公开(公告)日：2012-07-10

申请号：US12379307

申请日：2009-02-18

Applicant: Seok Hwan Ahn ,  Young Gwan Ko

Inventor： Seok Hwan Ahn ,  Young Gwan Ko

IPC: H01J3/10

CPC classification number: H05K3/107 ,  H05K3/0032 ,  H05K3/045 ,  H05K3/426 ,  H05K2201/0376 ,  H05K2201/0959 ,  H05K2203/025 ,  H05K2203/1461

Abstract: Disclosed is a printed circuit board having a plating pattern buried in a via and a method of manufacturing the same. The method of manufacturing the printed circuit board includes forming a negative pattern for forming a plating pattern, thus remarkably reducing the generation of plating thickness deviation in a plating process for forming a circuit pattern, and the printed circuit board has improved electrical signal transmission properties.

Abstract translation: 公开了一种印刷电路板及其制造方法。 制造印刷电路板的方法包括形成用于形成电镀图案的负图案，从而显着减少了用于形成电路图案的电镀工艺中电镀厚度偏差的产生，并且印刷电路板具有改善的电信号传输性能。