Controlled Growth of the Self-Modulation of a Relativistic Proton Bunch in Plasma

(AWAKE Collaboration)

Research output: Contribution to journalArticlepeer-review

Abstract

A long, narrow, relativistic charged particle bunch propagating in plasma is subject to the self-modulation (SM) instability. We show that SM of a proton bunch can be seeded by the wakefields driven by a preceding electron bunch. SM timing reproducibility and control are at the level of a small fraction of the modulation period. With this seeding method, we independently control the amplitude of the seed wakefields with the charge of the electron bunch and the growth rate of SM with the charge of the proton bunch. Seeding leads to larger growth of the wakefields than in the instability case.

Original languageEnglish
Article number024802
JournalPhysical Review Letters
Volume129
Issue number2
DOIs
Publication statusPublished - 8 Jul 2022

OECD FOS+WOS

  • 1.03 PHYSICAL SCIENCES AND ASTRONOMY

Fingerprint

Dive into the research topics of 'Controlled Growth of the Self-Modulation of a Relativistic Proton Bunch in Plasma'. Together they form a unique fingerprint.

Cite this