Hot spots and dark current in advanced plasma wakefield accelerators

G. G. Manahan; A. Deng; O. Karger; Y. Xi; A. Knetsch; M. Litos; G. Wittig; T. Heinemann; J. Smith; Z. M. Sheng; D. A. Jaroszynski; G. Andonian; D. L. Bruhwiler; J. B. Rosenzweig; B. Hidding

doi:10.1103/PhysRevAccelBeams.19.011303

Hot spots and dark current in advanced plasma wakefield accelerators

G. G. Manahan, A. Deng, O. Karger, Y. Xi, A. Knetsch, M. Litos, G. Wittig, T. Heinemann, J. Smith, Z. M. Sheng, D. A. Jaroszynski, G. Andonian, D. L. Bruhwiler, J. B. Rosenzweig, B. Hidding

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Abstract

Dark current can spoil witness bunch beam quality and acceleration efficiency in particle beam-driven plasma wakefield accelerators. In advanced schemes, hot spots generated by the drive beam or the wakefield can release electrons from higher ionization threshold levels in the plasma media. These electrons may be trapped inside the plasma wake and will then accumulate dark current, which is generally detrimental for a clear and unspoiled plasma acceleration process. Strategies for generating clean and robust, dark current free plasma wake cavities are devised and analyzed, and crucial aspects for experimental realization of such optimized scenarios are discussed.

Original language	English
Article number	011303
Number of pages	9
Journal	Physical Review Special Topics: Accelerators and Beams
Volume	19
Issue number	1
DOIs	https://doi.org/10.1103/PhysRevAccelBeams.19.011303
Publication status	Published - 29 Jan 2016

Keywords

dark current
plasma wakefield
plasma wakefield acceleration
hot spots

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10.1103/PhysRevAccelBeams.19.011303Licence: CC BY 4.0

Manahan-etal-PRAB-2016-Hot-spots-and-dark-current-in-advanced-plasmaFinal published version, 4.99 MBLicence: CC BY 4.0

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Manahan, G. G., Deng, A., Karger, O., Xi, Y., Knetsch, A., Litos, M., Wittig, G., Heinemann, T., Smith, J., Sheng, Z. M., Jaroszynski, D. A., Andonian, G., Bruhwiler, D. L., Rosenzweig, J. B., & Hidding, B. (2016). Hot spots and dark current in advanced plasma wakefield accelerators. Physical Review Special Topics: Accelerators and Beams, 19(1), Article 011303 . https://doi.org/10.1103/PhysRevAccelBeams.19.011303

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title = "Hot spots and dark current in advanced plasma wakefield accelerators",

abstract = "Dark current can spoil witness bunch beam quality and acceleration efficiency in particle beam-driven plasma wakefield accelerators. In advanced schemes, hot spots generated by the drive beam or the wakefield can release electrons from higher ionization threshold levels in the plasma media. These electrons may be trapped inside the plasma wake and will then accumulate dark current, which is generally detrimental for a clear and unspoiled plasma acceleration process. Strategies for generating clean and robust, dark current free plasma wake cavities are devised and analyzed, and crucial aspects for experimental realization of such optimized scenarios are discussed.",

keywords = "dark current, plasma wakefield, plasma wakefield acceleration, hot spots",

author = "Manahan, {G. G.} and A. Deng and O. Karger and Y. Xi and A. Knetsch and M. Litos and G. Wittig and T. Heinemann and J. Smith and Sheng, {Z. M.} and Jaroszynski, {D. A.} and G. Andonian and Bruhwiler, {D. L.} and Rosenzweig, {J. B.} and B. Hidding",

year = "2016",

month = jan,

day = "29",

doi = "10.1103/PhysRevAccelBeams.19.011303",

language = "English",

volume = "19",

journal = "Physical Review Special Topics: Accelerators and Beams",

issn = "1098-4402",

publisher = "American Physical Society",

number = "1",

}

Manahan, GG, Deng, A, Karger, O, Xi, Y, Knetsch, A, Litos, M, Wittig, G, Heinemann, T, Smith, J, Sheng, ZM, Jaroszynski, DA, Andonian, G, Bruhwiler, DL, Rosenzweig, JB & Hidding, B 2016, 'Hot spots and dark current in advanced plasma wakefield accelerators', Physical Review Special Topics: Accelerators and Beams, vol. 19, no. 1, 011303 . https://doi.org/10.1103/PhysRevAccelBeams.19.011303

TY - JOUR

T1 - Hot spots and dark current in advanced plasma wakefield accelerators

AU - Manahan, G. G.

AU - Deng, A.

AU - Karger, O.

AU - Xi, Y.

AU - Knetsch, A.

AU - Litos, M.

AU - Wittig, G.

AU - Heinemann, T.

AU - Smith, J.

AU - Sheng, Z. M.

AU - Jaroszynski, D. A.

AU - Andonian, G.

AU - Bruhwiler, D. L.

AU - Rosenzweig, J. B.

AU - Hidding, B.

PY - 2016/1/29

Y1 - 2016/1/29

N2 - Dark current can spoil witness bunch beam quality and acceleration efficiency in particle beam-driven plasma wakefield accelerators. In advanced schemes, hot spots generated by the drive beam or the wakefield can release electrons from higher ionization threshold levels in the plasma media. These electrons may be trapped inside the plasma wake and will then accumulate dark current, which is generally detrimental for a clear and unspoiled plasma acceleration process. Strategies for generating clean and robust, dark current free plasma wake cavities are devised and analyzed, and crucial aspects for experimental realization of such optimized scenarios are discussed.

AB - Dark current can spoil witness bunch beam quality and acceleration efficiency in particle beam-driven plasma wakefield accelerators. In advanced schemes, hot spots generated by the drive beam or the wakefield can release electrons from higher ionization threshold levels in the plasma media. These electrons may be trapped inside the plasma wake and will then accumulate dark current, which is generally detrimental for a clear and unspoiled plasma acceleration process. Strategies for generating clean and robust, dark current free plasma wake cavities are devised and analyzed, and crucial aspects for experimental realization of such optimized scenarios are discussed.

KW - dark current

KW - plasma wakefield

KW - plasma wakefield acceleration

KW - hot spots

UR - http://journals.aps.org/prab/abstract/10.1103/PhysRevAccelBeams.19.011303

U2 - 10.1103/PhysRevAccelBeams.19.011303

DO - 10.1103/PhysRevAccelBeams.19.011303

M3 - Article

SN - 1098-4402

VL - 19

JO - Physical Review Special Topics: Accelerators and Beams

JF - Physical Review Special Topics: Accelerators and Beams

IS - 1

M1 - 011303

ER -

Hot spots and dark current in advanced plasma wakefield accelerators

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