1. 9 GeV Energy Gain in a Beam-Driven Plasma Wakefield Accelerator
- Author
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Litos, M, Adli, E, Allen, J M, An, W, Clarke, C I, Corde, S, Clayton, C E, Frederico, J, Gessner, S J, Green, S Z, Hogan, M J, Joshi, C, Lu, W., Marsh, K A, Mori, W B, Schmeltz, M, Vafaei-Najafabadi, N, and Yakimenko, V
- Subjects
Physics - Plasma Physics ,Physics - Accelerator Physics - Abstract
An electron beam has gained a maximum energy of 9 GeV per particle in a 1.3 m-long electron beam-driven plasma wakefield accelerator. The amount of charge accelerated in the spectral peak was 28.3 pC, and the root-mean-square energy spread was 5.0%. The mean accelerated charge and energy gain per particle of the 215 shot data set was 115 pC and 5.3 GeV, respectively, corresponding to an acceleration gradient of 4.0 GeV/m at the spectral peak. The mean energy spread of the data set was 5.1%. These results are consistent with the extrapolation of the previously reported energy gain results using a shorter, 36 cm-long plasma source to within 10%, evincing a non-evolving wake structure that can propagate distances of over a meter in length. Wake-loading effects were evident in the data through strong dependencies observed between various spectral properties and the amount of accelerated charge., Comment: 11 pages, 3 figures, Laser and Plasma Accelerators Workshop (LPAW) 2015 Proceedings
- Published
- 2015
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