TY  - EJOUR
AU  - Lemery, Francois
AU  - Floettmann, Klaus
AU  - Piot, Philippe
AU  - Kärtner, Franz
AU  - Assmann, Ralph
TI  - An Adiabatic Phase-Matching Accelerator
IS  - DESY-17-240
M1  - PUBDB-2018-00768
M1  - DESY-17-240
M1  - FERMILAB-PUB-17-610-APC
M1  - arXiv:1712.08403
PY  - 2018
AB  - 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  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  ∼ 200-keV electron beam can be accelerated to an energy of  ∼ 10 MeV over  ∼ 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.
LB  - PUB:(DE-HGF)25 ; PUB:(DE-HGF)29
DO  - DOI:10.3204/PUBDB-2018-00768
UR  - https://bib-pubdb1.desy.de/record/399587
ER  -