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

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

doi:10.1063/1.1652712

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

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

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65 Scopus citations

Abstract

The use of stray electrons to provide active neutralization for space-charge-dominated beams and to prevent uncontrolled ion beam neutralization was discussed. The neutralization was provided by a localized plasma injected from a cathode arc source. The unwanted secondary electrons produced at the wall by halo particle impact were found to be suppressed using a radial mesh liner that was positively biased inside a beam drift tube. The results show that, when the NTX beams was neutralized by passing it through a MEVVA plasma, the focal radius decreases to 1.26-1.4 mm, compared with the 1 mm spot size found in perfect neutralization.

Original language	English (US)
Pages (from-to)	2890-2898
Number of pages	9
Journal	Physics of Plasmas
Volume	11
Issue number	5 PART 2
DOIs	https://doi.org/10.1063/1.1652712
State	Published - May 2004

All Science Journal Classification (ASJC) codes

Condensed Matter Physics

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10.1063/1.1652712

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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. (2004). Results on intense beam focusing and neutralization from the neutralized beam experiment. Physics of Plasmas, 11(5 PART 2), 2890-2898. https://doi.org/10.1063/1.1652712

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title = "Results on intense beam focusing and neutralization from the neutralized beam experiment",

abstract = "The use of stray electrons to provide active neutralization for space-charge-dominated beams and to prevent uncontrolled ion beam neutralization was discussed. The neutralization was provided by a localized plasma injected from a cathode arc source. The unwanted secondary electrons produced at the wall by halo particle impact were found to be suppressed using a radial mesh liner that was positively biased inside a beam drift tube. The results show that, when the NTX beams was neutralized by passing it through a MEVVA plasma, the focal radius decreases to 1.26-1.4 mm, compared with the 1 mm spot size found in perfect neutralization.",

author = "Roy, \{P. K.\} and Yu, \{S. S.\} and S. Eylon and E. Henestroza and A. Anders and Bieniosek, \{F. M.\} and Greenway, \{W. G.\} and Logan, \{B. G.\} and Waldron, \{W. L.\} and Vanecek, \{D. L.\} and Welch, \{D. R.\} and Rose, \{D. V.\} and Davidson, \{R. C.\} and Efthimion, \{P. C.\} and Gilson, \{E. P.\} and Sefkow, \{A. B.\} and Sharp, \{W. M.\}",

year = "2004",

month = may,

doi = "10.1063/1.1652712",

language = "English (US)",

volume = "11",

pages = "2890--2898",

journal = "Physics of Plasmas",

issn = "1070-664X",

publisher = "American Institute of Physics",

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Roy, PK, Yu, SS, Eylon, S, Henestroza, E, Anders, A, Bieniosek, FM, Greenway, WG, Logan, BG, Waldron, WL, Vanecek, DL, Welch, DR, Rose, DV, Davidson, RC, Efthimion, PC , Gilson, EP, Sefkow, AB & Sharp, WM 2004, 'Results on intense beam focusing and neutralization from the neutralized beam experiment', Physics of Plasmas, vol. 11, no. 5 PART 2, pp. 2890-2898. https://doi.org/10.1063/1.1652712

TY - JOUR

T1 - Results on intense beam focusing and neutralization from the neutralized beam experiment

AU - Roy, P. K.

AU - Yu, S. S.

AU - Eylon, S.

AU - Henestroza, E.

AU - Anders, A.

AU - Bieniosek, F. M.

AU - Greenway, W. G.

AU - Logan, B. G.

AU - Waldron, W. L.

AU - Vanecek, D. L.

AU - Welch, D. R.

AU - Rose, D. V.

AU - Davidson, R. C.

AU - Efthimion, P. C.

AU - Gilson, E. P.

AU - Sefkow, A. B.

AU - Sharp, W. M.

PY - 2004/5

Y1 - 2004/5

N2 - The use of stray electrons to provide active neutralization for space-charge-dominated beams and to prevent uncontrolled ion beam neutralization was discussed. The neutralization was provided by a localized plasma injected from a cathode arc source. The unwanted secondary electrons produced at the wall by halo particle impact were found to be suppressed using a radial mesh liner that was positively biased inside a beam drift tube. The results show that, when the NTX beams was neutralized by passing it through a MEVVA plasma, the focal radius decreases to 1.26-1.4 mm, compared with the 1 mm spot size found in perfect neutralization.

AB - The use of stray electrons to provide active neutralization for space-charge-dominated beams and to prevent uncontrolled ion beam neutralization was discussed. The neutralization was provided by a localized plasma injected from a cathode arc source. The unwanted secondary electrons produced at the wall by halo particle impact were found to be suppressed using a radial mesh liner that was positively biased inside a beam drift tube. The results show that, when the NTX beams was neutralized by passing it through a MEVVA plasma, the focal radius decreases to 1.26-1.4 mm, compared with the 1 mm spot size found in perfect neutralization.

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VL - 11

SP - 2890

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JO - Physics of Plasmas

JF - Physics of Plasmas

IS - 5 PART 2

ER -

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

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