6 papers
Features of long particle beam self-modulated in plasma
Vlada Yarygova, Konstantin Lotov
Under certain conditions, a long particle beam self-modulates in a dense plasma, that is, it breaks down into a train of short, stable microbunches under the influence of its own w…
Oscillation damper for misaligned witness in plasma wakefield accelerator
K. V. Lotov, I. Yu. Kargapolov, P. V. Tuev
If a laser- or particle beam-driven plasma wakefield accelerator operates in the linear or moderately nonlinear regime, injecting an externally produced particle bunch (witness) to…
Attenuation of waveguide modes in narrow metal capillaries
P. V. Tuev, K. V. Lotov
The channeling of laser pulses in waveguides filled with a rare plasma is one of promising techniques of laser wakefield acceleration. A solid-state capillary can precisely guide t…
Accelerating field enhancement due to ion motion in plasma wakefield accelerators
V. A. Minakov, A. P. Sosedkin, K. V. Lotov
Ion motion in plasma wakefield accelerators can cause temporal increase of the longitudinal electric field shortly before the wave breaks. The increase is caused by re-distribution…
Amplitude enhancement of the self-modulated plasma wakefields
Y. Li, G. Xia, K. V. Lotov +3
Seeded Self-modulation (SSM) has been demonstrated to transform a long proton bunch into many equidistant micro-bunches (e.g., the AWAKE case), which then resonantly excite strong…
Guiding femtosecond high-intensity high-contrast laser pulses by copper capillaries
V. E. Leshchenko, K. V. Gubin, V. I. Trunov +2
Propagation of high-intensity, high-contrast (), 50\,fs laser pulses through triangilar copper capillaries is experimentally studied. The relative transmission through 20…