Chappell, J;
Adli, E;
Agnello, R;
Aladi, M;
Andrebe, Y;
Apsimon, O;
Apsimon, R;
... Zevi Della Porta, G; + view all
(2021)
Experimental study of extended timescale dynamics of a plasma wakefield driven by a self-modulated proton bunch.
Physical Review Accelerators and Beams
, 24
(1)
, Article 011301. 10.1103/PhysRevAccelBeams.24.011301.
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Abstract
Plasma wakefield dynamics over timescales up to 800 ps, approximately 100 plasma periods, are studied experimentally at the Advanced Wakefield Experiment (AWAKE). The development of the longitudinal wakefield amplitude driven by a self-modulated proton bunch is measured using the external injection of witness electrons that sample the fields. In simulation, resonant excitation of the wakefield causes plasma electron trajectory crossing, resulting in the development of a potential outside the plasma boundary as electrons are transversely ejected. Trends consistent with the presence of this potential are experimentally measured and their dependence on wakefield amplitude are studied via seed laser timing scans and electron injection delay scans
| Type: | Article |
|---|---|
| Title: | Experimental study of extended timescale dynamics of a plasma wakefield driven by a self-modulated proton bunch |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevAccelBeams.24.011301 |
| Publisher version: | https://doi.org/10.1103/PhysRevAccelBeams.24.01130... |
| Language: | English |
| Additional information: | Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. https://creativecommons.org/licenses/by/4.0/ |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10119067 |
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