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4th European Advanced Accelerator Concepts Workshop

Sep 15 – 21, 2019
Hotel Hermitage, La Biodola Bay, Isola d'Elba, Italy
Europe/Rome timezone

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Session

WG6-WG8 Joint Session

Sep 18, 2019, 4:00 PM
SE (Hotel Hermitage)

SE

Hotel Hermitage

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  1. 11. Physics Opportunities at a Lepton Collider in the Fully Nonperturbative QED Regime
    Vitaly Yakimenko (SLAC)
    9/18/19, 4:00 PM
    WG6-WG8 Joint Session
    talk

    The presentation will discuss physics questions associated with a novel type of lepton collider, which exploits strong-field quantum effects [i]. In particular, the proposed collider mitigates beamstrahlung energy losses by utilizing highly compressed lepton bunches, which are shorter than the average photon emission length. It is therefore fundamentally different from existing designs for...

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  2. 178. A plasma-based accelerator beamline for ultra-low energy spread beams in the 1 GeV range
    Ángel Ferran Pousa (DESY)
    9/18/19, 4:20 PM
    WG6-WG8 Joint Session
    talk

    A new multi-stage concept for plasma-based accelerators which could achieve unprecedented performance in terms of energy spread has recently been proposed. This concept considers splitting the acceleration process into two identical plasma stages joined by a magnetic chicane in which the beam chirp is inverted. So far, this concept has been explored in the context of the EuPRAXIA project for...

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  3. 7. Particle acceleration in co-axial plasma channels
    Alexander Pukhov (University of Dusseldorf)
    9/18/19, 4:40 PM
    WG6-WG8 Joint Session
    talk

    The attainable transformer ratio in plasma accelerators is limited by instabilities. Using three-dimensional particle-in-cell simulations, we demonstrate that these can be controlled using a hollow plasma channel with a coaxial plasma filament. The driver scatters electrons from the filament, and the slow pinch of the ions leads to a strong chirp of the effective betatron frequency, preventing...

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  4. 205. Positron transport and acceleration in beam-driven plasma wakefield accelerators using a plasma column
    Severin Diederichs (University of Hamburg/DESY/LBNL)
    9/18/19, 5:00 PM
    WG6-WG8 Joint Session
    talk

    The transport and acceleration of positron beams is a crucial challenge on the path towards plasma-based particle colliders. We propose a scheme that allows for the simultaneous acceleration and transport of positron beams in plasma wakefield accelerators. A finite-radius plasma column is employed, leading to a reduction of the restoring force acting upon the plasma electrons forming the...

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