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TY - CONF AU - Rosenzweig, J.B. AU - Ancelin, H.S. AU - Andonian, G. AU - Baryshev, S.V. AU - Baturin, S. AU - Fukasawa, A. AU - Hansel, C.E. AU - Hogan, M.J. AU - Lawler, G.E. AU - Lynn, W.J. AU - Majernik, N. AU - Mann, J.I. AU - Manwani, P. AU - O’Shea, B.D. AU - Sakai, Y. AU - Storey, D.W. AU - Williams, O. AU - Yadav, M. AU - Yakimenko, V. ED - Liu, Lin ED - Byrd, John M. ED - Neuenschwander, Regis T. ED - Picoreti, Renan ED - Schaa, Volker R. W. TI - Physics Goals of DWA Experiments at FACET-II J2 - Proc. of IPAC2021, Campinas, SP, Brazil, 24-28 May 2021 CY - Campinas, SP, Brazil T2 - International Particle Accelerator Conference T3 - 12 LA - english AB - The dielectric wakefield acceleration (DWA) program at FACET produced a multitude of new physics results that range from GeV/m acceleration to the discovery of high field-induced conductivity in THz waves, and beyond, to a demonstration of positron-driven wakes. Here we review the rich program now developing in the DWA experiments at FACET-II. With increases in beam quality, a key feature of this program is extended interaction lengths, near 0.5 m, permitting GeV-class acceleration. Detailed physics studies in this context include beam breakup and its control through the exploitation of DWA structure symmetry. The next step in understanding DWA limits requires the exploration of new materials with low loss tangent, large bandgap, and improved thermal characteristics. Advanced structures with photonic features for mode confinement and exclusion of the field from the dielectric, as well as quasi-optical handling of coherent Cerenkov signals is discussed. Use of DWA for laser-based injection and advanced temporal diagnostics is examined. PB - JACoW Publishing CP - Geneva, Switzerland SP - 3922 EP - 3925 KW - experiment KW - wakefield KW - quadrupole KW - acceleration KW - focusing DA - 2021/08 PY - 2021 SN - 2673-5490 SN - 978-3-95450-214-1 DO - doi:10.18429/JACoW-IPAC2021-THPAB071 UR - https://jacow.org/ipac2021/papers/thpab071.pdf ER -