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arXiv · 2511.15143

Drive beam depletion with multi-Joule energy transfer in a plasma wakefield accelerator

R. Ariniello·V. Lee·D. Storey·C. Emma·S. Gessner·M. J. Hogan·A. Knetsch·M. D. Litos·N. Majernik·B. O'Shea
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Abstract

A collider based on beam-driven plasma wakefield acceleration will require the drive beam to transfer 10-100s of Joules to the plasma in each stage, with a drive-to-wake energy transfer efficiency exceeding 70%. Using an all-optical plasma source, we demonstrate significant progress towards these parameters, transferring at least 5.6 J from a 1.52 nC, 10 GeV electron beam to a $4.5\times 10^{16}\,\mathrm{cm^{-3}}$ hydrogen plasma while achieving at least $37\pm 3\%$ drive-to-wake energy transfer efficiency. We observe deceleration of some particles to less than 0.93 GeV with up to 90% of the charge participating in the interaction.

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R. Ariniello, V. Lee, D. Storey, C. Emma, S. Gessner, M. J. Hogan, A. Knetsch, M. D. Litos, N. Majernik, B. O'Shea. 2025-11-19. Drive beam depletion with multi-Joule energy transfer in a plasma wakefield accelerator. https://arxiv.org/abs/2511.15143

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