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Sep 13 – 19, 2015
La Biodola, Isola d'Elba
Europe/Rome timezone

Wakefield-Induced Ionization Injection and Self-Similar Staging 
in Beam-driven Plasma Wakes.

Sep 14, 2015, 6:00 PM
30m
SML Sala Maria Luisa (Hotel Hermitage)

SML Sala Maria Luisa

Hotel Hermitage

talk WG1 - Electron beams from plasmas WG1 - Electron beams from plasmas

Speaker

Dr Alberto Martinez de la Ossa (DESY)

Description

We propose a simple strategy for controlled ionization-induced trapping of electrons in beam-driven plasma accelerators (PWFA) [1]. The presented method exploits the electric wakefields to ionize electrons from a dopant gas and to capture them into a well-defined volume of the accelerating and focusing wake phase, leading to the formation of high-quality witness bunches. This injection principle is explained by example of three-dimensional particle-in-cell simulations using the code OSIRIS. The produced bunches feature multi-kA peak currents, ~1 μm transverse normalized emittances, uncorrelated energy spreads of <1% on a GeV-energy scale, and femtosecond bunch lengths. The hereby generated witness bunches fulfill all the requirements to drive the same injection principle in a largely increased plasma density. This brings up a new concept of staging that has the potential of producing electron beams with unprecedented energy and quality in PWFA. References [1] A. Martinez de la Ossa et al., Phys. Rev. Lett. 111, 245003 (2013).

Primary author

Dr Alberto Martinez de la Ossa (DESY)

Co-authors

Dr Jens Osterhoff (Deutsches Elektronen-Synchrotron DESY) Dr Lucas Schaper (University Hamburg / DESY) Dr Matthew Streeter (DESY) Dr Timon Mehrling (DESY)

Presentation materials