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 …

Plasma wakefield acceleration is a promising technology to reduce the size of particle
accelerators. The use of high energy protons to drive wakefields in plasma has been …

We study experimentally the effect of linear plasma density gradients on the self-modulation
of a 400 GeV proton bunch. Results show that a positive or negative gradient increases or …

We study experimentally the longitudinal and transverse wakefields driven by a highly
relativistic proton bunch during self-modulation in plasma. We show that the wakefields' …

Seeded self-modulation in a plasma can transform a long proton beam into a train of micro-
bunches that can excite a strong wakefield over long distances, but this needs the plasma to …

We outline plans to use plasma light emitted as atomic lines radiation as a diagnostic for
wakefields driven in plasma by a self-modulating, long proton bunch. This diagnostic is built …

There is a new effect that can limit the lifetime of a weakly non-linear wakefield in a radially
bounded plasma. If the drive beam is narrow, some of the plasma electrons fall out of the …

We propose a new method for analytical self-consistent description of the excitation of a
strongly nonlinear wakefield (a bubble) excited by an electron bunch. This method makes it …

Plasma-based accelerators have made remarkable progress over the last two decades.
Their unique characteristics make them tools that can revolutionize fields of science and …

Plasma-based deceleration could greatly improve the overall compactness of accelerator
facilities. In the so-called passive plasma beam dump, collective oscillations of plasma …