73 citations · 278 across the 14 of their papers we have counts for
15 papers
Slice Emittance Preservation and Focus Control in a Passive Plasma Lens
J. Björklund Svensson, J. Beinortaitė, L. Boulton +15
Strong, symmetrically focusing plasma lenses are promising for accommodating the small beams associated with plasma-based accelerators and collider final foci. However, while focus…
A dump leakage calorimeter to measure the flux of high-energy electrons and photons
Antonios Athanassiadis, Ties Behnke, Jonas Björklund Svensson +18
We developed a novel apparatus based on a lead-glass calorimeter that can measure the flux of high-energy electrons or photons. Our detector uses the electromagnetic shower leakage…
Characterization of discharge capillaries via benchmarked hydrodynamic plasma simulations
S. M. Mewes, G. J. Boyle, R. D'Arcy +10
Plasma accelerators utilize strong electric fields in plasma waves to accelerate charged particles, making them a compact alternative to radiofrequency technologies. Discharge capi…
Ion-motion simulations of a plasma-wakefield experiment at FLASHForward
D. Kalvik, P. Drobniak, F. Peña +13
In plasma-based acceleration, an ultra-relativistic particle bunch$\unicode{x2014}$or an intense laser beam$\unicode{x2014}$is used to expel electrons from its propagation path, fo…
Experimental demonstration of a tomographic 5D phase-space reconstruction
S. Jaster-Merz, R. W. Assmann, J. Beinortaitė +17
Detailed knowledge of particle-beam properties is of great importance to understand and push the performance of existing and next-generation particle accelerators. We recently prop…
Emittance preservation in a plasma-wakefield accelerator
C. A. Lindstrøm, J. Beinortaitė, J. Björklund Svensson +15
Radio-frequency particle accelerators are engines of discovery, powering high-energy physics and photon science, but are also large and expensive due to their limited accelerating…
Energy Depletion and Re-Acceleration of Driver Electrons in a Plasma-Wakefield Accelerator
F. Peña, C. A. Lindstrøm, J. Beinortaitė +13
For plasma-wakefield accelerators to fulfil their potential for cost effectiveness, it is essential that their energy-transfer efficiency be maximized. A key aspect of this efficie…
Longitudinally resolved measurement of energy-transfer efficiency in a plasma-wakefield accelerator
L. Boulton, C. A. Lindstrøm, J. Beinortaite +12
Energy-transfer efficiency is an important quantity in plasma-wakefield acceleration, especially for applications that demand high average power. Conventionally, the efficiency is…
Recovery time of a plasma-wakefield accelerator
R. D'Arcy, J. Chappell, J. Beinortaite +14
The interaction of intense particle bunches with plasma can give rise to plasma wakes capable of sustaining gigavolt-per-metre electric fields, which are orders of magnitude higher…
Controlled density-downramp injection in a beam-driven plasma wakefield accelerator
Alexander Knetsch, Bridget Sheeran, Lewis Boulton +26
This paper describes the utilization of beam-driven plasma wakefield acceleration to implement a high-quality plasma cathode via density-downramp injection in a short injector stag…
A tunable plasma-based energy dechirper
R. D'Arcy, S. Wesch, A. Aschikhin +23
A tunable plasma-based energy dechirper has been developed at FLASHForward to remove the correlated energy spread of a 681~MeV electron bunch. Through the interaction of the bunch…
Direct Measurement of Focusing Fields in Active Plasma Lenses
J. -H. Röckemann, L. Schaper, S. K. Barber +17
Active plasma lenses have the potential to enable broad-ranging applications of plasma-based accelerators owing to their compact design and radially symmetric kT/m-level focusing f…
Longitudinal Bunch Diagnostics using Coherent Transition Radiation Spectroscopy
Bernhard Schmidt, Stephan Wesch, Toke Kövener +4
The generation and properties of transition radiation (TR) are thoroughly treated. The spectral energy density, as described by the Ginzburg-Frank formula, is computed analytically…
Electron beam profile imaging in the presence of coherent optical radiation effects
Christopher Behrens, Christopher Gerth, Gero Kube +3
High-brightness electron beams with low energy spread at existing and future x-ray free-electron lasers are affected by various collective beam self-interactions and microbunching…
A Multi-Channel THz and Infrared Spectrometer for Femtosecond Electron Bunch Diagnostics by Single-Shot Spectroscopy of Coherent Radiation
S. Wesch, B. Schmidt, C. Behrens +2
The high peak current required in free-electron lasers (FELs) is realized by longitudinal compression of the electron bunches to sub-picosecond length. In this paper, a frequency-d…