• Open Access

Generating high-brightness and coherent soft x-ray pulses in the water window with a seeded free-electron laser

Kaishang Zhou, Chao Feng, Haixiao Deng, and Dong Wang
Phys. Rev. Accel. Beams 20, 010702 – Published 23 January 2017

Abstract

We propose a new scheme to generate high-brightness and temporal coherent soft x-ray radiation in a seeded free-electron laser. The proposed scheme is based on the coherent harmonic generation (CHG) and superradiant principles. A CHG scheme is first used to generate a coherent signal at ultrahigh harmonics of the seed. This coherent signal is then amplified by a series of chicane-undulator modules via the fresh bunch and superradiant processes in the following radiator. Using a representative of a realistic set of parameters, three-dimensional simulations have been carried out and the simulations results demonstrated that 10 GW-level ultrashort (20fs) coherent radiation pulses in the water window can be achieved by using a 1.6 GeV electron beam based on the proposed technique.

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  • Received 4 September 2016

DOI:https://doi.org/10.1103/PhysRevAccelBeams.20.010702

Published by the American Physical Society under the terms of the Creative Commons Attribution 3.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI.

Published by the American Physical Society

Physics Subject Headings (PhySH)

Accelerators & Beams

Authors & Affiliations

Kaishang Zhou, Chao Feng*, Haixiao Deng, and Dong Wang

  • Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China

  • *Corresponding author. fengchao@sinap.ac.cn

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Issue

Vol. 20, Iss. 1 — January 2017

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