WEO5M05

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URL	https://doi.org/10.18429/JACoW-IPAC2026-WEO5M05
Title	Low-emittance, Low-charge optimization of the Argonne Wakefield Accelerator for the Nanopatterned Microbunching Experiment
Authors	J. Phillips Particle Beam Physics Lab (PBPL) R. Margraf-O'Neal, A. Ody, J. Power Argonne National Laboratory A. Halavanau, N. Majernik SLAC National Accelerator Laboratory B. Temizel Ozdemir, G. Ha Northern Illinois University, Argonne National Laboratory D. Abell RadiaSoft (United States) G. Andonian, J. Rosenzweig University of California, Los Angeles H. Xu, N. Yampolsky Los Alamos National Laboratory J. Maxson Cornell University R. Ryne Lawrence Berkeley National Laboratory
Abstract	Low-emittance microbunched electron beams are a key ingredient in free-electron lasers (FELs), facilitating gain and coherence in radiation production. It has been proposed, such as by the Compact X-ray FEL (CXFEL) group at Arizona State University, that nano-scale microbunching could be produced by rotating transverse beamlets into the longitudinal plane. Such a technique could make short-wavelength FELs much more compact, reducing cost. Thus, a collaboration has been formed to test this principle using the emittance exchange (EEX) beamline of the Argonne Wakefield Accelerator (AWA).* ** This experiment will take micro-scale transverse modulations on a TEM grid and produce mico-to-nano scale microbunches. Performing this with AWA’s 40 MeV electron beam will require low normalized emittance (~50 nm*rad), and low charge (~1pC) electron bunches that are not commonly produced at AWA. These proceedings will detail our work to produce and characterize this low emittance in the AWA beamline.
Paper	download: WEO5M05.pdf
Cite	BibTeX, LaTeX, Text/Word, RIS, EndNote
Conference	17th International Particle Accelerator Conference
Series
Location	Deauville, France
Date	17-22 May 2026
Publisher	JACoW Publishing, Geneva, Switzerland
Editorial Board	Editorial Board
Online ISBN	978-3-95450-252-3
Online ISSN	2673-5350
Received	13 May 2026
Revised	19 May 2026
Accepted
Issued	20 July 2026
DOI	10.18429/JACoW-IPAC2026-WEO5M05
Pages	2420-2424
Copyright	Published by JACoW Publishing under the terms of the Creative Commons Attribution 4.0 license. Any further distribution of this work must maintain attribution to the author(s), the published article's title, publisher, and DOI.