Remote underwater laser acoustic source
    1.
    发明申请
    Remote underwater laser acoustic source 有权
    远程水下激光声源

    公开(公告)号:US20060096802A1

    公开(公告)日:2006-05-11

    申请号:US11268400

    申请日:2005-11-02

    IPC分类号: G10K15/04

    CPC分类号: G10K15/046

    摘要: A method for generating an acoustic source in a liquid includes transmitting an optical pulse through the liquid so the optical pulse reaches ILIB through pulse compression and ionizes a liquid volume. The pulse compression is achieved through at least one of a) group velocity dispersion induced longitudinal compression of a frequency chirped optical pulse and b) transverse self focusing via a nonlinear optical Kerr effect. The acoustic source can be generated at a controllable remote location many meters from the optical source. The optical source can be a laser or other suitable optical device.

    摘要翻译: 用于在液体中产生声源的方法包括:通过液体传输光脉冲,使得光脉冲通过脉冲压缩达到I LIB,并离子化液体体积。 脉冲压缩是通过a)组速度色散引起的频率啁啾光脉冲的纵向压缩和b)通过非线性光学克尔效应的横向自聚焦中的至少一个来实现的。 声源可以在距离光源许多米的可控远程位置产生。 光源可以是激光器或其他合适的光学器件。

    System for conditioning an electron beam for improved free-electron
laser operation
    2.
    发明授权
    System for conditioning an electron beam for improved free-electron laser operation 失效
    用于调节电子束以改善自由电子激光器操作的系统

    公开(公告)号:US6137811A

    公开(公告)日:2000-10-24

    申请号:US98989

    申请日:1993-07-29

    IPC分类号: H01S3/09 H05H7/04

    CPC分类号: H01S3/0903 H05H7/04

    摘要: A system is disclosed for developing a conditioned electron beam of high quality for an exemplary application to a free-electron source of coherent radiation. The system comprises: a source for producing an electron beam of relatively high energy, a microwave source for generating a microwave field, and a wiggler for generating transverse to the electron beam a periodic magnetic field which cooperates with the microwave field to interact with the electron beam and develop a conditioned electron beam of high quality.

    摘要翻译: 公开了一种用于开发高质量的条件化电子束的系统,用于示范应用于相干辐射的自由电子源。 该系统包括:用于产生相对高能量的电子束的源,用于产生微波场的微波源和用于与电子束横向产生的摆动器,周期性磁场与微波场配合以与电子相互作用 光束和开发高质量的条件电子束。

    Betatron accelerator having high ratio of Budker parameter to
relativistic factor
    3.
    发明授权
    Betatron accelerator having high ratio of Budker parameter to relativistic factor 失效
    Betatron加速器具有高比率的Budker参数与相对论因素

    公开(公告)号:US4481475A

    公开(公告)日:1984-11-06

    申请号:US405465

    申请日:1982-08-05

    IPC分类号: H05H11/00

    CPC分类号: H05H11/00

    摘要: A betatron for accelerating charged particles in a toroidal vacuum chamber comprisinga betatron magnetic field generator;a toroidal magnetic field generator;a generating circuit for generating a charged particle beam into the toroidal chamber with an energy and current such that the ratio of the Budker parameter .nu. to the relativistic factor .gamma. of the beam in the range .nu./.gamma.=0.005 to 0.25 so that the toroidal field effects are significant and act to stabilize the beam, with the beam generation initiated at a point in the betatron magnetic field cycle where the betatron field is slightly less than the field equilibrium value for the beam;a circuit disposed in the toroidal chamber for reducing the local betatron field in the toroidal chamber only during the beam trapping stage while maintaining the average flux constant inside the beam orbit to prevent collision with the beam generation circuit after the first bounce; anda coil circuit disposed such that its axis is approximately coincident with the major axis of the toroid for generating a time varying magnetic field in a direction approximately perpendicular to the plane of the toroid to thereby induce an electric field to oppose the electric field induced by the diffusion of the self magnetic field.

    摘要翻译: 一种用于在包括一个betatron磁场发生器的环形真空室中加速带电粒子的betatron; 环形磁场发生器; 产生电路,用于以能量和电流将带电粒子束产生到环形室中,使得Budker参数nu与在nu /γ= 0.005至0.25的范围内的光束的相对论因子γ的比率使得环形场 效应是显着的,并且用于稳定光束,其中光束产生在比特仑磁场周期中的一个点处发生,其中比特子场比该波束的场平衡值略小; 设置在环形室中的电路,用于仅在波束捕获阶段期间减小环形室中的局部电荷场,同时保持波束轨道内的平均磁通常数,以防止在第一次反弹之后与光束产生电路的碰撞; 以及线圈电路,其设置成使得其轴线与环形线圈的长轴大致重合,以在大致垂直于环形面的平面的方向上产生时变磁场,从而引起电场与由 自磁场的扩散。

    X-ray source for lithography
    5.
    发明授权
    X-ray source for lithography 失效
    用于光刻的X射线源

    公开(公告)号:US5892810A

    公开(公告)日:1999-04-06

    申请号:US520229

    申请日:1990-05-09

    IPC分类号: G03F7/20 H05G2/00 H01J35/00

    CPC分类号: G03F7/70033 H05G2/00

    摘要: An x-ray lithography device in which a beam of electrons interacts with a microwave field of a quasi-optical maser such as a quasi-optical gyrotron. This maser comprises a pair of spaced mirrors defining a quasi-optical cavity therebetween, with one mirror being provided with an orifice to permit extraction of the x-ray beam produced. A Bragg reflector is connected to the mirror orifice to reduce the microwave power loss from the device through the orifice. Electrons injected in the maser cavity are caused to "wiggle" by the interacting microwave field, which functions as an undulator, so as to produce a non-coherent x-ray beam that travels along the longitudinal axis of the cavity and exits through the mirror orifice.

    摘要翻译: 一种x射线光刻设备,其中电子束与诸如准光学陀螺仪的准光学激光器的微波场相互作用。 该激光器包括一对在其间限定准光学腔的隔开的反射镜,其中一个反射镜设有孔口以允许提取所产生的X射线束。 布拉格反射器连接到镜孔,以减少从器件通过孔口的微波功率损耗。 注射在激光器腔中的电子被作为波动器的相互作用的微波场“摆动”,以产生沿空腔的纵向轴线行进并穿过反射镜的非相干x射线束 孔。

    Gyrotron travelling-wave amplifier
    6.
    发明授权
    Gyrotron travelling-wave amplifier 失效
    陀螺仪行波放大器

    公开(公告)号:US4224576A

    公开(公告)日:1980-09-23

    申请号:US943894

    申请日:1978-09-19

    CPC分类号: H01J25/025 H01S3/0947

    摘要: An apparatus for amplifying coherent radiation at millimeter and submillimeter wavelengths includes the combination of a travelling-wave-tube cyclotron-maser-amplifier structure and a magnetron-injection electron gun. The amplifier structure includes a fast-wave drift tube and an electromagnetic wave launcher within the bore of a superconducting magnet. The magnetron-injection electron gun is also within the bore of the magnet and is coupled to the drift tube. As a travelling wave is launched in a preferred mode in the drift tube, the electron gun injects an annular beam of relativistic electrons having both large energy transverse to the axis of the device and small energy spread into the drift tube so that the electrons gyrate at their cyclotron frequency in orbits about the lines of the axial magnetic field produced by the magnet. The travelling wave is amplified by extracting energy from the relativistic electron beam. Efficiency of this energy transfer is optimized by tapering the magnetic field near the output end of the wave-beam interaction region.

    摘要翻译: 用于在毫米波和亚毫米波长处放大相干辐射的装置包括行波管回旋加速器 - 激光放大器结构和磁控管注入电子枪的组合。 放大器结构包括在超导磁体的孔内的快波漂移管和电磁波发射器。 磁控管注射电子枪也在磁体的孔内并且耦合到漂移管。 由于在漂移管中以优选的方式发射行波,所以电子枪注入相对论电子的环形光束,该相对论电子具有横向于器件轴线的大能量,并且小能量扩散到漂移管中,使得电子在 它们的回旋加速器围绕由磁体产生的轴向磁场的线轨道运动。 通过从相对论电子束中提取能量来放大行波。 通过使波束相互作用区域的输出端附近的磁场逐渐变细来优化能量传递的效率。