402 citations · 1.7k across the 22 of their papers we have counts for
7 papers · 1 filter
Self-modulation instability of ultra-relativistic particle bunches with finite rise times
J. Vieira, L. D. Amorim, Y. Fang +3
We study the evolution of the self-modulation instability using bunches with finite rise times. Using particle-in-cell simulations we show that unlike long bunches with sharp rise…
Ion motion in the wake driven by long particle bunches in plasmas
J. Vieira, R. A. Fonseca, W. B. Mori +1
We explore the role of the background plasma ion motion in self-modulated plasma wakefield accelerators. We employ J. Dawson's plasma sheet model to derive expressions for the tran…
Proton acceleration by a relativistic laser frequency-chirp driven plasma snowplow
Aakash A. Sahai, T. C. Katsouleas, R. A. Bingham +4
We analyze the use of a relativistic laser pulse with a controlled frequency chirp incident on a rising plasma density gradient to drive an acceleration structure for proton and li…
Long Term Evolution of Plasma Wakefields
Aakash A. Sahai, T. C. Katsouleas, F. S. Tsung +1
We study the long-term evolution (LTE) of plasma wakefields over multiple plasma-electron periods and few plasma-ion periods, much less than a recombination time. The evolution and…
Beam quality requirements for the Ion-Channel Laser
X. Davoine, F. Fiúza, R. A. Fonseca +2
In this paper, we determine the electron beam quality requirements to obtain exponential radiation amplification in the ion-channel laser, where a relativistic electron beam wiggle…
Hosing Instability Suppression in Self-Modulated Plasma Wakefields
J. Vieira, W. B. Mori, P. Muggli
We show that the hosing instability can be suppressed after the saturation of the self-modulation instability of a long particle bunch if the plasma density perturbation is linear.…