Generation of a wakefield undulator in plasma with transverse density gradient

Stupakov, Gennady V.

doi:10.1063/1.4990048

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

Journal Article · Thu Nov 30 00:00:00 EST 2017 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.4990048· OSTI ID:1410976

Stupakov, Gennady V. ^[1]

SLAC National Accelerator Lab., Menlo Park, CA (United States)

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.

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

Sponsoring Organization:: USDOE Office of Science (SC), Advanced Scientific Computing Research (ASCR)

Grant/Contract Number:: AC02-76SF00515

OSTI ID:: 1410976

Alternate ID(s):: OSTI ID: 1410721

Journal Information:: Physics of Plasmas, Vol. 24, Issue 11; ISSN 1070-664X

Publisher:: American Institute of Physics (AIP)Copyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 2 works

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References (26)

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