Transverse emittance and current of multi-GeV trapped electrons in a plasma wakefield accelerator

N. Kirby; I. Blumenfeld; C. E. Clayton; F. J. Decker; M. J. Hogan; C. Huang; R. Ischebeck; R. H. Iverson; C. Joshi; T. Katsouleas; W. Lu; K. A. Marsh; S. F. Martins; W. B. Mori; P. Muggli; E. Oz; R. H. Siemann; D. R. Walz; M. Zhou

doi:10.1103/PhysRevSTAB.12.051302

Transverse emittance and current of multi-GeV trapped electrons in a plasma wakefield accelerator

N. Kirby, I. Blumenfeld, C. E. Clayton, F. J. Decker, M. J. Hogan, C. Huang, R. Ischebeck, R. H. Iverson, C. Joshi, T. Katsouleas, W. Lu, K. A. Marsh, S. F. Martins, W. B. Mori, P. Muggli, E. Oz, R. H. Siemann, D. R. Walz, M. Zhou

Research output: Contribution to journal › Article › peer-review

20 Scopus citations

Abstract

Multi-GeV trapped electron bunches in a plasma wakefield accelerator (PWFA) are observed with normalized transverse emittance divided by peak current, εN,x/It, below the level of 0.2μm/kA. A theoretical model of the trapped electron emittance, developed here, indicates that emittance scales inversely with the square root of the plasma density in the nonlinear "bubble" regime of the PWFA. This model and simulations indicate that the observed values of εN,x/It result from multi-GeV trapped electron bunches with emittances of a fewμm and multi-kA peak currents.

Original language	English (US)
Article number	051302
Journal	Physical Review Special Topics - Accelerators and Beams
Volume	12
Issue number	5
DOIs	https://doi.org/10.1103/PhysRevSTAB.12.051302
State	Published - May 14 2009
Externally published	Yes

ASJC Scopus subject areas

Nuclear and High Energy Physics
Physics and Astronomy (miscellaneous)
Surfaces and Interfaces

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10.1103/PhysRevSTAB.12.051302

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Kirby, N., Blumenfeld, I., Clayton, C. E., Decker, F. J., Hogan, M. J., Huang, C., Ischebeck, R., Iverson, R. H., Joshi, C., Katsouleas, T., Lu, W., Marsh, K. A., Martins, S. F., Mori, W. B., Muggli, P., Oz, E., Siemann, R. H., Walz, D. R., & Zhou, M. (2009). Transverse emittance and current of multi-GeV trapped electrons in a plasma wakefield accelerator. Physical Review Special Topics - Accelerators and Beams, 12(5), Article 051302. https://doi.org/10.1103/PhysRevSTAB.12.051302

Kirby, N, Blumenfeld, I, Clayton, CE, Decker, FJ, Hogan, MJ, Huang, C, Ischebeck, R, Iverson, RH, Joshi, C, Katsouleas, T, Lu, W, Marsh, KA, Martins, SF, Mori, WB, Muggli, P, Oz, E, Siemann, RH, Walz, DR & Zhou, M 2009, 'Transverse emittance and current of multi-GeV trapped electrons in a plasma wakefield accelerator', Physical Review Special Topics - Accelerators and Beams, vol. 12, no. 5, 051302. https://doi.org/10.1103/PhysRevSTAB.12.051302

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abstract = "Multi-GeV trapped electron bunches in a plasma wakefield accelerator (PWFA) are observed with normalized transverse emittance divided by peak current, εN,x/It, below the level of 0.2μm/kA. A theoretical model of the trapped electron emittance, developed here, indicates that emittance scales inversely with the square root of the plasma density in the nonlinear {"}bubble{"} regime of the PWFA. This model and simulations indicate that the observed values of εN,x/It result from multi-GeV trapped electron bunches with emittances of a fewμm and multi-kA peak currents.",

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AU - Blumenfeld, I.

AU - Clayton, C. E.

AU - Decker, F. J.

AU - Hogan, M. J.

AU - Huang, C.

AU - Ischebeck, R.

AU - Iverson, R. H.

AU - Joshi, C.

AU - Katsouleas, T.

AU - Lu, W.

AU - Marsh, K. A.

AU - Martins, S. F.

AU - Mori, W. B.

AU - Muggli, P.

AU - Oz, E.

AU - Siemann, R. H.

AU - Walz, D. R.

AU - Zhou, M.

PY - 2009/5/14

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AB - Multi-GeV trapped electron bunches in a plasma wakefield accelerator (PWFA) are observed with normalized transverse emittance divided by peak current, εN,x/It, below the level of 0.2μm/kA. A theoretical model of the trapped electron emittance, developed here, indicates that emittance scales inversely with the square root of the plasma density in the nonlinear "bubble" regime of the PWFA. This model and simulations indicate that the observed values of εN,x/It result from multi-GeV trapped electron bunches with emittances of a fewμm and multi-kA peak currents.

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Transverse emittance and current of multi-GeV trapped electrons in a plasma wakefield accelerator

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