Suppression of Deflecting Forces in Planar-Symmetric Dielectric Wakefield Accelerating Structures with Elliptical Bunches

O’Shea, Brendan D.; Andonian, Gerard; Baturin, S. S.; Clarke, Christine I.; Hoang, P. D.; Hogan, Mark J.; Naranjo, Brian; Williams, Oliver B.; Yakimenko, Vitaly; Rosenzweig, James B.

doi:10.1103/physrevlett.124.104801

Title: Suppression of Deflecting Forces in Planar-Symmetric Dielectric Wakefield Accelerating Structures with Elliptical Bunches

Journal Article · Wed Mar 11 00:00:00 EDT 2020 · Physical Review Letters

DOI:https://doi.org/10.1103/physrevlett.124.104801· OSTI ID:1600732

^[1]; Andonian, Gerard ^[2];

^[3]; Clarke, Christine I. ^[4]; Hoang, P. D. ^[2]; Hogan, Mark J. ^[4]; Naranjo, Brian ^[2]; Williams, Oliver B. ^[2]; Yakimenko, Vitaly ^[4]; Rosenzweig, James B. ^[2]

Univ. of California, Los Angeles, CA (United States); SLAC National Accelerator Lab., Menlo Park, CA (United States)
Univ. of California, Los Angeles, CA (United States)
Northern Illinois Univ., DeKalb, IL (United States)
SLAC National Accelerator Lab., Menlo Park, CA (United States)

Wakefield based accelerators capable of accelerating gradients two orders of magnitude higher than present accelerators offer a path to compact high energy physics instruments and light sources. However, for high gradient accelerators, beam instabilities driven by commensurately high transverse wakefields limit beam quality. It has been previously theoretically shown that transverse wakefields can be reduced by elliptically shaping the transverse sizes of beams in dielectric structures with planar symmetry. We report here experimental measurements that demonstrate reduced transverse wakefields for elliptical beams in planar symmetric structures which are consistent with theoretical models. Furthermore, these results may enable the design of gigavolt-per-meter gradient wakefield based accelerators that produce and stably accelerate high quality beams.

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Research Organization:: SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Basic Energy Sciences (BES)

Grant/Contract Number:: AC02-76SF00515; SC0009914

OSTI ID:: 1600732

Alternate ID(s):: OSTI ID: 1604227

Journal Information:: Physical Review Letters, Vol. 124, Issue 10; Related Information: This AM has not been assigned a DOI as of yet.https://journals.aps.org/prl/accepted/42076Yf9X6e1f96997b64f51a2243dbb0b3003291; ISSN 0031-9007

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 9 works

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References (24)

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Title: Suppression of Deflecting Forces in Planar-Symmetric Dielectric Wakefield Accelerating Structures with Elliptical Bunches

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