Plasma wakefield acceleration beyond the dephasing limit with 400 GeV proton driver

A new regime of proton-driven plasma wakefield acceleration is discovered, in which the plasma nonlinearity increases the phase velocity of the excited wave compared to that of the protons. If the beam charge is much larger than minimally necessary to excite a nonlinear wave, there is sufficient fre...

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Veröffentlicht in:	Plasma physics and controlled fusion 2021-12, Vol.63 (12), p.125027, Article 125027
Hauptverfasser:	Lotov, K V, Tuev, P V
Format:	Artikel
Sprache:	eng
Schlagworte:	Physical Sciences Physics Physics, Fluids & Plasmas plasma wakefield acceleration proton beam Science & Technology seeded self-modulation
Online-Zugang:	Volltext
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Beschreibung
Zusammenfassung:	A new regime of proton-driven plasma wakefield acceleration is discovered, in which the plasma nonlinearity increases the phase velocity of the excited wave compared to that of the protons. If the beam charge is much larger than minimally necessary to excite a nonlinear wave, there is sufficient freedom in choosing the longitudinal plasma density profile to make the wave speed close to the speed of light. This allows electrons or positrons to be accelerated to about 200 GeV with a 400 GeV proton driver.
ISSN:	0741-3335 1361-6587
DOI:	10.1088/1361-6587/ac349a