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Title: Self-mapping the longitudinal field structure of a nonlinear plasma accelerator cavity

Journal Article · · Nature Communications
DOI:https://doi.org/10.1038/ncomms12483· OSTI ID:1326210

The preservation of emittance of the accelerating beam is the next challenge for plasma-based accelerators envisioned for future light sources and colliders. The field structure of a highly nonlinear plasma wake is potentially suitable for this purpose but has not been yet measured. Here we show that the longitudinal variation of the fields in a nonlinear plasma wakefield accelerator cavity produced by a relativistic electron bunch can be mapped using the bunch itself as a probe. We find that, for much of the cavity that is devoid of plasma electrons, the transverse force is constant longitudinally to within ±3% (r.m.s.). Moreover, comparison of experimental data and simulations has resulted in mapping of the longitudinal electric field of the unloaded wake up to 83 GV m–1 to a similar degree of accuracy. Lastly, these results bode well for high-gradient, high-efficiency acceleration of electron bunches while preserving their emittance in such a cavity.

Research Organization:
SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC)
Grant/Contract Number:
AC02-76SF00515
OSTI ID:
1326210
Report Number(s):
SLAC-PUB-16820; ncomms12483
Journal Information:
Nature Communications, Vol. 7; ISSN 2041-1723
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 19 works
Citation information provided by
Web of Science

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Cited By (6)

Plasma wakefield acceleration experiments at FACET II journal January 2018
Probing plasma wakefields using electron bunches generated from a laser wakefield accelerator journal March 2018
Plasma-based accelerators: then and now journal August 2019
Betatron radiation and emittance growth in plasma wakefield accelerators
  • San Miguel Claveria, P.; Adli, E.; Amorim, L. D.
  • Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, Vol. 377, Issue 2151 https://doi.org/10.1098/rsta.2018.0173
journal June 2019
Producing multi-coloured bunches through beam-induced ionization injection in plasma wakefield accelerator
  • Vafaei-Najafabadi, N.; Amorim, L. D.; Adli, E.
  • Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, Vol. 377, Issue 2151 https://doi.org/10.1098/rsta.2018.0184
journal June 2019
Directions in plasma wakefield acceleration
  • Hidding, B.; Foster, B.; Hogan, M. J.
  • Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, Vol. 377, Issue 2151 https://doi.org/10.1098/rsta.2019.0215
journal June 2019

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