Open AccessGeneration of high-quality GeV-class electron beams utilizing attosecond ionization injection
Author(s) -
Zsolt Lécz,
А. А. Андреев,
Christos Kamperidis,
N. Hafz
Publication year - 2021
Publication title -
new journal of physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.584
H-Index - 190
ISSN - 1367-2630
DOI - 10.1088/1367-2630/abf076
Subject(s) - physics , electron , attosecond , acceleration , plasma , ionization , atomic physics , plasma acceleration , bunches , laser , computational physics , nuclear physics , optics , ion , quantum mechanics , ultrashort pulse
Acceleration of electrons in laser-driven plasma wakefields has been extended up to the 10 GeV energy within a distance of 10s of centimeters. However, in applications, requiring small energy spread within the electron bunch, only a small portion of the bunch can be used and often the low-energy electrons represent undesired background in the spectrum. We present a compact and tunable scheme providing clean and mono-energetic electron bunches with less than one percent energy spread and with central energy on the GeV level. It is a two-step process consisting of ionization injection with attosecond pulses and acceleration in a capillary plasma wave-guide. Semi-analytical theory and particle-in-cell simulations are used to accurately model the injection and acceleration steps.