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

P.K. Roy | Zendy; S.S. Yu | Zendy; S. Eylon | Zendy; E. Henestroza | Zendy; André Anders | Zendy; F.M. Bieniosek | Zendy; W. Greenway | Zendy; B.G. Logan | Zendy; W.L. Waldron | Zendy; D. Vanecek | Zendy; D. R. Welch | Zendy; D. V. Rose | Zendy; Ronald C. Davidson | Zendy; P. C. Efthimion | Zendy; E.P. Gilson | Zendy; A. B. Sefkow | Zendy; W.M. Sharp | Zendy

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

Author(s) -

P.K. Roy,

S.S. Yu,

S. Eylon,

E. Henestroza,

André Anders,

F.M. Bieniosek,

W. Greenway,

B.G. Logan,

W.L. Waldron,

D. Vanecek,

D. R. Welch,

D. V. Rose,

Ronald C. Davidson,

P. C. Efthimion,

E.P. Gilson,

A. B. Sefkow,

W.M. Sharp

Publication year - 2004

Publication title -

physics of plasmas

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.75

H-Index - 160

eISSN - 1089-7674

pISSN - 1070-664X

DOI - 10.1063/1.1652712

Subject(s) - physics , beam (structure) , atomic physics , plasma , neutralization , electron , cathode , cathode ray , space charge , ion beam , secondary electrons , optics , nuclear physics , chemistry , antibody , immunology , biology

We have demonstrated experimental techniques to provide active neutralization for space-charge dominated beams as well as to prevent uncontrolled ion beam neutralization by stray electrons. 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. We present measurements of current transmission, beam spot size as a function of axial position, beam energy and plasma source conditions. Detailed comparisons with theory are also presented.

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