Beam Diagnostics Challenges in Plasma Wakefield Acceleration

The field of particle acceleration in plasma wakes has seen remarkable progress in recent years.These days, acceleration gradients in excess of 10 GV/m can be readily achieved using eitherultra-short intense laser pulses or particle beams as wake drivers. With the advent of first multi-GeV electron beams from plasma and a general trend towards improved reproducibility, beamquality and control over the involved processes, plasma-acceleration techniques are starting todraw considerable interest in the traditional acceleratorcommunity.Part of this attention isbased on the extreme beam properties obtainable with plasma, such as femtosecond durationand sub-micron normalized transverse emittance, which pose significant obstacles for beamcharacterization and require cutting-edge detection concepts. In addition, the conservation ofthese characteristics during beam transport is complicated by ~mm beta functions at theplasma exit in combination with correlated energy spreads typically on a percent level. Thispresentation will give an introduction into the field of plasma wakefield acceleration and providean overview about challenges in diagnosing the generated beams