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@inproceedings{manwani:ipac2021-tupab147, author = {P. Manwani and H.S. Ancelin and G. Andonian and G. Ha and J.G. Power and J.B. Rosenzweig and M. Yadav}, % author = {P. Manwani and H.S. Ancelin and G. Andonian and G. Ha and J.G. Power and J.B. Rosenzweig and others}, % author = {P. Manwani and others}, title = {{Asymmetric Beam Driven Plasma Wakefields at the AWA}}, booktitle = {Proc. IPAC'21}, pages = {1732--1735}, eid = {TUPAB147}, language = {english}, keywords = {plasma, wakefield, simulation, emittance, electron}, venue = {Campinas, SP, Brazil}, series = {International Particle Accelerator Conference}, number = {12}, publisher = {JACoW Publishing, Geneva, Switzerland}, month = {08}, year = {2021}, issn = {2673-5490}, isbn = {978-3-95450-214-1}, doi = {10.18429/JACoW-IPAC2021-TUPAB147}, url = {https://jacow.org/ipac2021/papers/tupab147.pdf}, note = {https://doi.org/10.18429/JACoW-IPAC2021-TUPAB147}, abstract = {{In future plasma wakefield acceleration-based scenarios for linear colliders, beams with highly asymmetric emittance are expected. In this case, the blowout region is no longer axisymmetric, but elliptical in cross-section, which implies that the focusing is not equal in the two transverse planes. In this paper, we analyze simulations for studying the asymmetries in flat-beam driven plasma acceleration using the round-to-flat-beam transformer at the Argonne Wakefield Accelerator. Beams with high charge and emittance ratios, in excess of 100:1, are routinely available at the AWA. We use particle-in-cell codes to compare various scenarios including a weak blowout, where the plasma focusing effect exhibits higher order mode asymmetry. Further, practical considerations for tunable plasma density using capillary discharge and laser ionization are compared for implementation into experimental designs.}}, }