Results on intense beam focusing and neutralization from the neutralized beam experiment

Experimental techniques to provide active neutralization for space-charge-dominated beams as well as to prevent uncontrolled ion beam neutralization by stray electrons have been demonstrated. Neutralization is provided by a localized plasma injected from a cathode arc source. Unwanted secondary elec...

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Published in:Physics of Plasmas 2004-05, Vol.11 (5), p.2890-2898
Main Authors: Roy, P. K., Yu, S. S., Eylon, S., Henestroza, E., Anders, A., Bieniosek, F. M., Greenway, W. G., Logan, B. G., Waldron, W. L., Vanecek, D. L., Welch, D. R., Rose, D. V., Davidson, R. C., Efthimion, P. C., Gilson, E. P., Sefkow, A. B., Sharp, W. M.
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cited_by cdi_FETCH-LOGICAL-c332t-a4ecce423523b2d7b42803bb75edab8a95ece5a5544ca8c91a44980dd8e07c463
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container_end_page 2898
container_issue 5
container_start_page 2890
container_title Physics of Plasmas
container_volume 11
creator Roy, P. K.
Yu, S. S.
Eylon, S.
Henestroza, E.
Anders, A.
Bieniosek, F. M.
Greenway, W. G.
Logan, B. G.
Waldron, W. L.
Vanecek, D. L.
Welch, D. R.
Rose, D. V.
Davidson, R. C.
Efthimion, P. C.
Gilson, E. P.
Sefkow, A. B.
Sharp, W. M.
description Experimental techniques to provide active neutralization for space-charge-dominated beams as well as to prevent uncontrolled ion beam neutralization by stray electrons have been demonstrated. Neutralization is provided by a localized plasma injected from a cathode arc source. Unwanted secondary electrons produced at the wall by halo particle impact are suppressed using a radial mesh liner that is positively biased inside a beam drift tube. Measurements of current transmission, beam spot size as a function of axial position, beam energy, and plasma source conditions are presented along with detailed comparisons with theory.
doi_str_mv 10.1063/1.1652712
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title Results on intense beam focusing and neutralization from the neutralized beam experiment
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