• Open Access

X-band active-passive rf pulse compressor with plasma switches

A. L. Vikharev, O. A. Ivanov, A. M. Gorbachev, M. A. Lobaev, V. A. Isaev, S. G. Tantawi, J. R. Lewandowski, and J. L. Hirshfield
Phys. Rev. ST Accel. Beams 14, 121302 – Published 8 December 2011

Abstract

As proposed by SLAC, the efficiency of a pulse compressor of the SLED-II type could be increased by changing both the phase of the microwave source and the coupling coefficient of the delay line. In the existing SLED-II system at frequency 11.4 GHz, the resonant delay line is coupled with the source via an iris with a constant reflection coefficient. Replacement of the iris with an active component makes it possible to create an active SLED-II system. In this paper, the use of plasma switches as the active elements is discussed. Plasma switches have been developed and tested at a high-power level for production of flattop compressed pulses. Active switching of SLED-II has demonstrated a marked increase in efficiency (by 20%) and power gain (by 37%) as compared with passive switching. The active compressor has produced 173 ns rf flattop output pulses with a power of about 112 MW.

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  • Received 5 September 2011

DOI:https://doi.org/10.1103/PhysRevSTAB.14.121302

This article is available 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

Authors & Affiliations

A. L. Vikharev1,2, O. A. Ivanov1,2, A. M. Gorbachev1,2, M. A. Lobaev1, V. A. Isaev1, S. G. Tantawi3, J. R. Lewandowski3, and J. L. Hirshfield2,4

  • 1Institute of Applied Physics RAS, Nizhny Novgorod, 603600, Russia
  • 2Omega-P, Inc., New Haven, Connecticut 06510, USA
  • 3SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA
  • 4Department of Physics, Yale University, New Haven, Connecticut 06511, USA

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Vol. 14, Iss. 12 — December 2011

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