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Title: Generation of a wakefield undulator in plasma with transverse density gradient

Here, we show that a short relativistic electron beam propagating in a plasma with a density gradient perpendicular to the direction of motion generates a wakefield in which a witness bunch experiences a transverse force. A density gradient oscillating along the beam path would create a periodically varying force$-$an undulator, with an estimated strength of the equivalent magnetic field more than ten Tesla. This opens an avenue for creation of a high-strength, short-period undulators, which eventually may lead to all-plasma, free electron lasers where a plasma wakefield acceleration is naturally combined with a plasma undulator in a unifying, compact setup.
Authors:
 [1]
  1. SLAC National Accelerator Lab., Menlo Park, CA (United States)
Publication Date:
Grant/Contract Number:
AC02-76SF00515
Type:
Accepted Manuscript
Journal Name:
Physics of Plasmas
Additional Journal Information:
Journal Volume: 24; Journal Issue: 11; Journal ID: ISSN 1070-664X
Publisher:
American Institute of Physics (AIP)
Research Org:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org:
USDOE Office of Science (SC), Advanced Scientific Computing Research (ASCR) (SC-21)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; Synchrotron radiation; Particle acceleration; Free; Plasma density; Perturbation theory
OSTI Identifier:
1410976
Alternate Identifier(s):
OSTI ID: 1410721

Stupakov, Gennady V. Generation of a wakefield undulator in plasma with transverse density gradient. United States: N. p., Web. doi:10.1063/1.4990048.
Stupakov, Gennady V. Generation of a wakefield undulator in plasma with transverse density gradient. United States. doi:10.1063/1.4990048.
Stupakov, Gennady V. 2017. "Generation of a wakefield undulator in plasma with transverse density gradient". United States. doi:10.1063/1.4990048.
@article{osti_1410976,
title = {Generation of a wakefield undulator in plasma with transverse density gradient},
author = {Stupakov, Gennady V.},
abstractNote = {Here, we show that a short relativistic electron beam propagating in a plasma with a density gradient perpendicular to the direction of motion generates a wakefield in which a witness bunch experiences a transverse force. A density gradient oscillating along the beam path would create a periodically varying force$-$an undulator, with an estimated strength of the equivalent magnetic field more than ten Tesla. This opens an avenue for creation of a high-strength, short-period undulators, which eventually may lead to all-plasma, free electron lasers where a plasma wakefield acceleration is naturally combined with a plasma undulator in a unifying, compact setup.},
doi = {10.1063/1.4990048},
journal = {Physics of Plasmas},
number = 11,
volume = 24,
place = {United States},
year = {2017},
month = {11}
}