• Open Access

High efficiency laser-assisted H charge exchange for microsecond duration beams

Sarah Cousineau, Abdurahim Rakhman, Martin Kay, Alexander Aleksandrov, Viatcheslav Danilov, Timofey Gorlov, Yun Liu, Cary Long, Alexander Menshov, Michael Plum, Andrei Shishlo, Andrew Webster, and David Johnson
Phys. Rev. Accel. Beams 20, 120402 – Published 26 December 2017

Abstract

Laser-assisted stripping is a novel approach to H charge exchange that overcomes long-standing limitations associated with the traditional, foil-based method of producing high-intensity, time-structured beams of protons. This paper reports on the first successful demonstration of the laser stripping technique for microsecond duration beams. The experiment represents a factor of 1000 increase in the stripped pulse duration compared with the previous proof-of-principle demonstration. The central theme of the experiment is the implementation of methods to reduce the required average laser power such that high efficiency stripping can be accomplished for microsecond duration beams using conventional laser technology. The experiment was performed on the Spallation Neutron Source 1 GeV H beam using a 1 MW peak power UV laser and resulted in 95% stripping efficiency.

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  • Received 8 August 2017

DOI:https://doi.org/10.1103/PhysRevAccelBeams.20.120402

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

Sarah Cousineau1,*, Abdurahim Rakhman1, Martin Kay1, Alexander Aleksandrov2, Viatcheslav Danilov2,†, Timofey Gorlov2, Yun Liu2, Cary Long2, Alexander Menshov2, Michael Plum2, Andrei Shishlo2, Andrew Webster2, and David Johnson3

  • 1Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37966, USA
  • 2Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
  • 3Fermilab National Laboratory, Batavia, Illinois 60510, USA

  • *Also at Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA. mcousin2@utk.edu
  • Deceased.

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Vol. 20, Iss. 12 — December 2017

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