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

Cousineau, Sarah; Rakhman, Abdurahim; Kay, Martin; Aleksandrov, Alexander; Danilov, Viatcheslav; Gorlov, Timofey; Liu, Yun; Long, Cary; Menshov, Alexander; Plum, Michael; Shishlo, Andrei; Webster, Andrew; Johnson, David

doi:10.1103/PhysRevAccelBeams.20.120402

Title: High efficiency laser-assisted $H^{-}$ charge exchange for microsecond duration beams

Journal Article · Tue Dec 26 00:00:00 EST 2017 · Physical Review Accelerators and Beams

DOI:https://doi.org/10.1103/PhysRevAccelBeams.20.120402· OSTI ID:1414878

Cousineau, Sarah; Rakhman, Abdurahim; Kay, Martin; Aleksandrov, Alexander; Danilov, Viatcheslav; Gorlov, Timofey; Liu, Yun; Long, Cary; Menshov, Alexander; Plum, Michael; Shishlo, Andrei; Webster, Andrew; Johnson, David

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. In conclusion, 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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Research Organization:: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)

Sponsoring Organization:: USDOE Office of Science (SC), High Energy Physics (HEP)

Grant/Contract Number:: FG02-13ER41967; AC05-00OR22725; AC02-07CH11359

OSTI ID:: 1414878

Alternate ID(s):: OSTI ID: 1418454

Report Number(s):: FERMILAB-PUB-18-023-AD; PRABCJ; 120402

Journal Information:: Physical Review Accelerators and Beams, Journal Name: Physical Review Accelerators and Beams Vol. 20 Journal Issue: 12; ISSN 2469-9888

Publisher:: American Physical SocietyCopyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 5 works

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References (13)

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