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    FREE ELECTRON LASER
    1.
    发明申请
    FREE ELECTRON LASER 审中-公开
    免费电子激光

    公开(公告)号：WO2015067467A1

    公开(公告)日：2015-05-14

    申请号：PCT/EP2014/072588

    申请日：2014-10-22

    Applicant: ASML NETHERLANDS B.V.

    Inventor： AKKERMANS, Johannes, ,  AMENT, Lucas ,  BANINE, Vadim ,  COENEN, Teis, Johan ,  DE JAGER, Pieter ,  DE VRIES, Gosse ,  FRIJNS, Olav ,  GRIMMINCK, Leonardus ,  KATALENIC, Andelko ,  LOOPSTRA, Erik ,  LUITEN, Otger ,  NIKIPELOV, Andrey

    IPC: H01S3/09 ,  H05H9/00 ,  H01J25/12 ,  H01J23/027 ,  H05H7/12

    CPC classification number: H01S3/0903 ,  G03F7/70208 ,  H01J23/027 ,  H01J25/10 ,  H05H9/00

    Abstract: A free electron laser comprising: an electron source (21), a linear accelerator (22), an undulator (26), electron beam optics and a deceleration unit (28'). The electron source is operable to produce a bunched electron beam. The linear accelerator arranged to impart energy to electrons in the bunched electron beam produced by the electron source. The undulator is operable to produce a periodic magnetic field and is arranged so as to guide the bunched electron beam along a periodic path about a central axis of the undulator such that they interact with radiation in the undulator, stimulating emission of coherent radiation. The electron beam optics is arranged to direct the bunched electron beam back into the linear accelerator after it leaves the undulator so as to extract energy from electrons in the bunched electron beam. The deceleration unit is arranged to extract energy from electrons in the bunched electron beam after it has left the undulator. The deceleration unit comprises one or more resonant cavities (33), and an energy dissipation mechanism. The bunched electron beam is directed through the one or more resonant cavities so as to excite one or more resonant standing wave modes therein.

    Abstract translation: 一种自由电子激光器，包括：电子源（21），线性加速器（22），波动器（26），电子束光学器件和减速单元（28'）。 电子源可操作以产生聚束电子束。 线性加速器被布置成赋予由电子源产生的聚束电子束中的电子能量。 波动器可操作以产生周期性磁场，并且被布置成引导聚束电子束沿着围绕波动器的中心轴线的周期性路径，使得它们与波动器中的辐射相互作用，刺激相干辐射的发射。 电子束光学器件被布置成在聚束束电子束离开波束器之后将聚束电子束引导回线性加速器，以便从束电子束中的电子提取能量。 减速单元被布置成在束状电子束离开波动器之后从电子束中的电子提取能量。 减速单元包括一个或多个谐振腔（33）和能量耗散机构。 聚束电子束被引导通过一个或多个谐振腔，以激发其中的一个或多个共振驻波模式。

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