• Open Access

Development for a supercompact X-band pulse compression system and its application at SLAC

Juwen W. Wang, Sami G. Tantawi, Chen Xu, Matt Franzi, Patrick Krejcik, Gordon Bowden, Shantha Condamoor, Yuantao Ding, Valery Dolgashev, John Eichner, Andrew Haase, James R. Lewandowski, and Liling Xiao
Phys. Rev. Accel. Beams 20, 110401 – Published 9 November 2017

Abstract

We have successfully designed, fabricated, installed, and tested a super compact X-band SLAC Energy Doubler system at SLAC. It is composed of an elegant 3 dB coupler–mode converter–polarizer coupled to a single spherical energy storage cavity with high Q0 of 94000 and a diameter less than 12 cm. The available rf peak power of 50 MW can be compressed to a peak average power of more than 200 MW in order to double the kick for the electron bunches in a rf transverse deflector system and greatly improve the measurement resolution of both the electron bunches and the x-ray free-electron laser pulses. The design physics and fabrication as well as the measurement results will be presented in detail. High-power operation has demonstrated the excellent performance of this rf compression system without rf breakdown, sign of pulse heating, and rf radiation.

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  • Received 28 June 2017

DOI:https://doi.org/10.1103/PhysRevAccelBeams.20.110401

Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International 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

Juwen W. Wang*, Sami G. Tantawi, Chen Xu, Matt Franzi, Patrick Krejcik, Gordon Bowden, Shantha Condamoor, Yuantao Ding, Valery Dolgashev, John Eichner, Andrew Haase, James R. Lewandowski, and Liling Xiao

  • SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA

  • *jywap@slac.stanford.edu

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Vol. 20, Iss. 11 — November 2017

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