Batsch, F;
Muggli, P;
Agnello, R;
Ahdida, CC;
Amoedo Goncalves, MC;
Andrebe, Y;
Apsimon, O;
... AWAKE Collaboration; + view all
(2021)
Transition between Instability and Seeded Self-Modulation of a Relativistic Particle Bunch in Plasma.
Physical Review Letters
, 126
(16)
, Article 164802. 10.1103/PhysRevLett.126.164802.
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Abstract
We use a relativistic ionization front to provide various initial transverse wakefield amplitudes for the self-modulation of a long proton bunch in plasma. We show experimentally that, with sufficient initial amplitude [≥(4.1±0.4) MV/m], the phase of the modulation along the bunch is reproducible from event to event, with 3%-7% (of 2π) rms variations all along the bunch. The phase is not reproducible for lower initial amplitudes. We observe the transition between these two regimes. Phase reproducibility is essential for deterministic external injection of particles to be accelerated.
| Type: | Article |
|---|---|
| Title: | Transition between Instability and Seeded Self-Modulation of a Relativistic Particle Bunch in Plasma |
| Location: | United States |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevLett.126.164802 |
| Publisher version: | http://dx.doi.org/10.1103/PhysRevLett.126.164802 |
| 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. |
| 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/10128961 |
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