Synchronous acceleration with tapered dielectric-lined waveguides

Lemery, Francois; Floettmann, Klaus; Piot, Philippe; Kartner, Franz X.; ABmann, Ralph

doi:10.1103/PhysRevAccelBeams.21.051302

Title: Synchronous acceleration with tapered dielectric-lined waveguides

Journal Article · 25 May 2018 · Physical Review Accelerators and Beams

DOI: https://doi.org/10.1103/PhysRevAccelBeams.21.051302 · OSTI ID:1418142

Lemery, Francois ^[1]; Floettmann, Klaus ^[1];

^[2]; Kartner, Franz X. ^[3]; ABmann, Ralph ^[1]

Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany)
Northern Illinois Univ., DeKalb, IL (United States); Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany); Univ. of Hamburg, Hamburg (Germany)

Here, we present a general concept to accelerate non-relativistic charged particles. Our concept employs an adiabatically-tapered dielectric-lined waveguide which supports accelerating phase velocities for synchronous acceleration. We propose an ansatz for the transient field equations, show it satisfies Maxwell's equations under an adiabatic approximation and find excellent agreement with a finite-difference time-domain computer simulation. The fields were implemented into the particle-tracking program {\sc astra} and we present beam dynamics results for an accelerating field with a 1-mm-wavelength and peak electric field of 100~MV/m. The numerical simulations indicate that a $$\sim 200$$-keV electron beam can be accelerated to an energy of $$\sim10$$~MeV over $$\sim 10$$~cm. The novel scheme is also found to form electron beams with parameters of interest to a wide range of applications including, e.g., future advanced accelerators, and ultra-fast electron diffraction.

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Research Organization:: Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)

Sponsoring Organization:: USDOE Office of Science (SC), High Energy Physics (HEP)

Grant/Contract Number:: AC02-07CH11359

OSTI ID:: 1418142

Report Number(s):: FERMILAB-PUB-17-610-APC; DESY-17-240; arXiv:1712.08403; PRABCJ; 1644832; TRN: US1801242

Journal Information:: Physical Review Accelerators and Beams, Vol. 21, Issue 5; ISSN 2469-9888

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 15 works

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Design of a tapered slot waveguide dielectric laser accelerator for sub-relativistic electrons Zhao, Zhexin; Hughes, Tyler W.; Tan, Si Optics Express, Vol. 26, Issue 18 https://doi.org/10.1364/oe.26.022801	journal	January 2018
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Simultaneous generation and compression of broadband terahertz pulses in aperiodically poled crystals Ravi, Koustuban; Kärtner, Franz Deutsches Elektronen-Synchrotron, DESY, Hamburg https://doi.org/10.3204/pubdb-2019-01109	text	January 2019
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