FERMI @ Elettra -- A Seeded Harmonic Cascade FEL for EUV and Soft X-rays
FERMI @ Elettra -- A Seeded Harmonic Cascade FEL for EUV and Soft X-rays
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FERMI @ Elettra——用于 EUV 和软 X 射线的种子谐波级联 FEL
DOI：
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发表时间：
2005
期刊：
影响因子：
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通讯作者：
J. Wu
中科院分区：
文献类型：
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作者：
C. Bocchetta;D. Bulfone;P. Craievich;M. Danailov;G. D’Auria;G. Deninno;S. Mitri;B. Diviacco;M. Ferianis;A. Gomezel;F. Iazzourene;E. Karantzoulis;F. Parmigiani;G. Penco;M. Trovò;J. Corlett;W. Fawley;S. Lidia;G. Penn;A. Ratti;J. Staples;R. Wilcox;A. Zholents;W. Graves;F. Ilday;F. Kaertner;Dong Wang;T. Zwart;M. Cornacchia;P. Emma;Zhirong Huang;J. Wu
我们描述了未来五年内资助在意大利 Sincrotrone Trieste 建设的 FERMI FEL 项目的机器布局和主要性能参数。该项目将是第一个基于种子谐波级联 FEL 的用户设施，提供受控的高峰值功率脉冲。借助高亮度射频光电阴极枪，并使用现有的 1.2 GeV S 波段直线加速器，该设施将提供范围从约 100 nm 到约 10 nm 的可调输出，脉冲持续时间从 40 fs 到约 1 ps，峰值功率 GW，并具有完全可变的输出偏振。最初，计划有两个 FEL 级联；单级谐波产生工作>40 nm，两级级联工作波长范围为{约}40 nm至{约}10 nm或更短。输出在空间和时间上都是相干的，峰值功率在 GW 范围内。激光器为电子束提供调制，并驱动光电阴极和其他系统，该设施将激光系统与加速器基础设施集成，包括提供射频信号、激光器和 X 射线脉冲同步的最先进的光学计时系统。描述了主要系统和总体设施布局，并总结了关键性能参数。
We describe the machine layout and major performance parameters for the FERMI FEL project funded for construction at Sincrotrone Trieste, Italy, within the next five years. The project will be the first user facility based on seeded harmonic cascade FELs, providing controlled, high peak-power pulses. With a high-brightness rf photocathode gun, and using the existing 1.2 GeV S-band linac, the facility will provide tunable output over a range from {approx}100 nm to {approx}10nm, with pulse duration from 40 fs to {approx} 1 ps, peak power GW, and with fully variable output polarization. Initially, two FEL cascades are planned; a single-stage harmonic generation to operate >40 nm, and a two stage cascade operating from {approx}40 nm to {approx}10 nm or shorter wavelength. The output is spatially and temporally coherent, with peak power in the GW range. Lasers provide modulation to the electron beam, as well as driving the photocathode and other systems, and the facility will integrate laser systems with the accelerator infrastructure, including a state-of-the-art optical timing system providing synchronization of rf signals, lasers, and x-ray pulses. Major systems and overall facility layout are described, and key performance parameters summarized.