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    High energy beam launching apparatus and method
    161.
    发明授权
    High energy beam launching apparatus and method 失效
    高能束发射装置及方法

    公开(公告)号：US3916239A

    公开(公告)日：1975-10-28

    申请号：US37648773

    申请日：1973-07-05

    Applicant: VARIAN ASSOCIATES

    Inventor： FRIEDLANDER FRED IRWIN

    IPC: G21K1/08 ,  H01J3/02 ,  H01J27/02 ,  H01J29/00

    CPC classification number: G21K1/08 ,  H01J3/02 ,  H01J27/02

    Abstract: Apparatus and method are disclosed for launching a high energy beam of charged particles along an axis into a substantially long path region from an exit aperture, in a manner such that the beam remains confined without application of external focusing fields in the region. The apparatus comprises a cathode, which is a source of electrons to compose the beam, and electrode means for producing an axial accelerating electric field to accelerate electrons in the beam to a relativistic velocity in an accelerating space. At relativistic velocity, the beam itself produces a solenoid-shaped magnetic field which undesirably tends to converge the beam when ionized gas molecules neutralize the space charge in the beam. An external magnet means for producing an axial magnetic field in the accelerating space and a radial magnetic field at the exit aperture, imparts a cyclotron angular momentum to the electrons. The cyclotron angular momentum provides a force to the electrons to substantially cancel the force of the self-magnetic field. Once the beam leaves the accelerating and cyclotron motion inducing space, it remains confined to a desired range of cross section. Such beams may be used for heating plasmas, or in high power microwave oscillators and amplifiers.

    Abstract translation: 公开了一种装置和方法，用于沿轴线将带电粒子的高能量束从出射孔发射到基本上长的路径区域中，使得光束保持局限，而不在该区域内施加外部聚焦场。 该装置包括作为构成光束的电子源的阴极以及用于产生轴向加速电场的电极装置，以将加速电子中的电子加速到加速空间中的相对速度。 在相对速度下，光束本身产生螺线管形磁场，当电离气体分子中和束中的空间电荷时，该磁场不合需要倾向于会聚束。 用于产生加速空间中的轴向磁场和出口孔径的径向磁场的外部磁铁装置向电子赋予回旋加速器角动量。 回旋加速器角动量为电子提供了一个力，从而基本上消除了自磁场的力。 一旦光束离开加速和回旋加速器运动诱导空间，它将保持局限于期望的横截面范围。 这种光束可用于加热等离子体，或用于高功率微波振荡器和放大器。

    Electron beam generator
    162.
    发明授权
    Electron beam generator 失效
    电子束发生器

    公开(公告)号：US3760286A

    公开(公告)日：1973-09-18

    申请号：US3760286D

    申请日：1972-10-18

    Applicant: ATOMIC ENERGY COMMISSION

    Inventor： KELLY J

    IPC: H01J3/02 ,  H01J29/54

    CPC classification number: H01J3/02

    Abstract: An electron beam generator in which an annular sheath of electrons is produced by an annular cathode and anode arrangement and injected in a converging manner to a focal point with a portion of the beam current returned to the center of the converging beam and through the center of the cathode annulus. Another portion of the beam current is fed back around the exterior of the converging beam.

    Abstract translation: 一种电子束发生器，其中电子的环形护套由环形阴极和阳极布置产生，并以会聚的方式注入到焦点，其中一部分光束电流返回到会聚束的中心并且通过 阴极环。 光束电流的另一部分被反射回聚光束的外部。

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