Explanipedia

Single-Shot Reconstruction of Electron Beam Longitudinal Phase Space in a Laser Wakefield Accelerator Open

Y. Ma, M. J. V. Streeter, F. Albert, Nicola Bourgeois, Silvia Cipiccia , et al. · 2025

We report on a single-shot longitudinal phase-space reconstruction diagnostic for electron beams in a laser wakefield accelerator via the experimental observation of distinct periodic modulations in the angularly resolved spectra. Such mod…

Stable laser-acceleration of high-flux proton beams with plasma collimation Open

M. J. V. Streeter, G. D. Glenn, S. DiIorio, F. Treffert, B. Loughran , et al. · 2025

Target sensitivity study of density transition-injected electrons in laser wakefield accelerators Open

C. C. Cobo, Christopher Arran, N. Bourgeois, L. Calvin, J. Carderelli , et al. · 2024

While plasma-based accelerators have the potential to positively impact a broad range of research topics, a route to application will only be possible through improved understanding of their stability. We present experimental results of a …

Control Systems and Data Management for High-Power Laser Facilities Open

Scott Feister, K. Cassou, S. J. D. Dann, A. Döpp, Philippe Gauron , et al. · 2023

The next generation of high-power lasers enables repetition of experiments at orders of magnitude higher frequency than was possible using the prior generation. Facilities requiring human intervention between laser repetitions need to adap…

Automated control and optimization of laser-driven ion acceleration: Data Open

B. Loughran, M. J. V. Streeter, H. Ahmed, S. Astbury, Mario Balcazar , et al. · 2023

This data repository contains python scripts that can recreate the plots from the article on 'Automated control and optimization of laser-driven ion acceleration'.

Automated control and optimization of laser-driven ion acceleration: Data Open

B. Loughran, M. J. V. Streeter, H. Ahmed, S. Astbury, Mario Balcazar , et al. · 2023

This data repository contains python scripts that can recreate the plots from the article on 'Automated control and optimization of laser-driven ion acceleration'.

Versatile tape-drive target for high-repetition-rate laser-driven proton acceleration Open

Ning Xu, M. J. V. Streeter, O. C. Ettlinger, H. Ahmed, S. Astbury , et al. · 2023

We present the development and characterization of a high-stability, multi-material, multi-thickness tape-drive target for laser-driven acceleration at repetition rates of up to 100 Hz. The tape surface position was measured to be stable o…

Automated control and optimization of laser-driven ion acceleration Open

B. Loughran, M. J. V. Streeter, H. Ahmed, S. Astbury, Mario Balcazar , et al. · 2023

The interaction of relativistically intense lasers with opaque targets represents a highly non-linear, multi-dimensional parameter space. This limits the utility of sequential 1D scanning of experimental parameters for the optimization of …

Control systems and data management for high-power laser facilities Open

Scott Feister, K. Cassou, S. J. D. Dann, A. Döpp, Philippe Gauron , et al. · 2023

The next generation of high-power lasers enables repetition of experiments at orders of magnitude higher frequency than what was possible using the prior generation. Facilities requiring human intervention between laser repetitions need to…

Versatile tape-drive target for high-repetition-rate laser-driven proton acceleration – CORRIGENDUM Open

Ning Xu, M. J. V. Streeter, O. C. Ettlinger, H. Ahmed, S. Astbury , et al. · 2023

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Characterization of laser wakefield acceleration efficiency with octave spanning near-IR spectrum measurements Open

M. J. V. Streeter, Y. Ma, B. Kettle, S. J. D. Dann, E. Gerstmayr , et al. · 2022

We report on experimental measurements of energy transfer efficiencies in a GeV-class laser wakefield accelerator. Both the transfer of energy from the laser to the plasma wakefield and from the plasma to the accelerated electron beam was …

Characterisation of Laser Wakefield Acceleration Efficiency with Octave Spanning Near-IR Spectrum Measurements Open

M. J. V. Streeter, Yutian Ma, B. Kettle, S. J. D. Dann, E. Gerstmayr , et al. · 2022

The dataset and analysis codes for the publication "Characterisation of Laser Wakefield Acceleration Efficiency with Octave Spanning Near-IR Spectrum Measurements". Analysis code is stored as jupyter notebooks.

Parametric study of high-energy ring-shaped electron beams from a laser wakefield accelerator Open

Antoine Maitrallain, E Brunetti, M. J. V. Streeter, B. Kettle, Roman Spesyvtsev , et al. · 2021

Laser wakefield accelerators commonly produce on-axis, low-divergence, high-energy electron beams. However, a high charge, annular shaped beam can be trapped outside the bubble and accelerated to high energies. Here we present a parametric…

Code and data associated with Automation and control of laser wakefield accelerators using Bayesian optimisation Open

M. J. V. Streeter, R. J. Shalloo, S. J. D. Dann · 2020

This repository contains the basic code for the article Automation and control of laser wakefield accelerators using Bayesian optimisation. It also contains the data and code to reproduce figure 3 and a video from an FBPIC simulation used …

Author Correction: Laser-wakefield accelerators for high-resolution X-ray imaging of complex microstructures Open

Amina Hussein, Nancy Senabulya, Y. Ma, M. J. V. Streeter, B. Kettle , et al. · 2020

Automation and Control of Laser Wakefield Accelerators using Bayesian Optimization Open

R. J. Shalloo, S. J. D. Dann, Jan-Niclas Gruse, Christopher Underwood, Andre Antoine , et al. · 2020

Laser wakefield accelerators promise to revolutionize many areas of accelerator science. However, one of the greatest challenges to their widespread adoption is the difficulty in control and optimization of the accelerator outputs due to c…

Automation and control of laser wakefield accelerators using Bayesian optimization Open

R. J. Shalloo, S. J. D. Dann, J.-N. Gruse, C. I. D. Underwood, Andre Antoine , et al. · 2020

Laser wakefield accelerators promise to revolutionize many areas of accelerator science. However, one of the greatest challenges to their widespread adoption is the difficulty in control and optimization of the accelerator outputs due to c…

Single-Shot Multi-keV X-Ray Absorption Spectroscopy Using an Ultrashort Laser-Wakefield Accelerator Source Open

B. Kettle, E. Gerstmayr, M. J. V. Streeter, F. Albert, R. A. Baggott , et al. · 2019

We report that single-shot absorption measurements have been performed using the multi-keV x rays generated by a laser-wakefield accelerator. A 200 TW laser was used to drive a laser-wakefield accelerator in a mode which produced broadband…

Laser wakefield acceleration with active feedback at 5 Hz Open

S. J. D. Dann, C. D. Baird, Nicolas Bourgeois, O. Chekhlov, Samuel Eardley , et al. · 2019

We describe the use of a genetic algorithm to apply active feedback to a laser wakefield accelerator at a higher power (10 TW) and a lower repetition rate (5 Hz) than previous work. The temporal shape of the drive laser pulse was adjusted …

Laser wakefield acceleration with active feedback at 5 Hz Open

S. J. D. Dann, C. D. Baird, Nicolas Bourgeois, O. Chekhlov, Samuel Eardley , et al. · 2019

The data and code used to produce the plots in Dann et al., "Laser wakefield acceleration with active feedback at 5 Hz", Phys. Rev. Accel. Beams (2019). This is a sub-set of the data collected during an experiment investi…

Laser wakefield acceleration with active feedback at 5 Hz Open

S. J. D. Dann, C. D. Baird, Nicolas Bourgeois, O. Chekhlov, Samuel Eardley , et al. · 2019

The data and code used to produce the plots in Dann et al., "Laser wakefield acceleration with active feedback at 5 Hz", Phys. Rev. Accel. Beams (2019). This is a sub-set of the data collected during an experiment investi…

Laser-wakefield accelerators for high-resolution X-ray imaging of complex microstructures Open

Amina Hussein, Nancy Senabulya, Y. Ma, M. J. V. Streeter, B. Kettle , et al. · 2019

Angular streaking of betatron X-rays in a transverse density gradient laser-wakefield accelerator Open

Y. Ma, D. Seipt, S. J. D. Dann, M. J. V. Streeter, C. A. J. Palmer , et al. · 2018

In a plasma with a transverse density gradient, laser wavefront tilt develops gradually due to phase velocity differences in different plasma densities. The wavefront tilt leads to a parabolic trajectory of the plasma wakefield and hence t…

Ultrahigh-charge electron beams from laser-irradiated solid surface Open

Y. Ma, Jiarui Zhao, Yifei Li, Dazhang Li, Liming Chen , et al. · 2018

Significance In the last three decades, the laser–plasma accelerator (LPA) has shown a rapid development owing to its super–high-accelerate gradients, which makes it a very promising compact accelerator and light source. Acceleration of a …

Progress towards a demonstration of multi-pulse laser Wakefield acceleration and implementation of a single-shot Wakefield diagnostic Open

S. J. D. Dann · 2015

An ongoing experiment is described to demonstrate the principle of multi-pulse laser wakefield acceleration, in which a plasma wakefield is resonantly excited by a train of laser pulses, spaced by the plasma wavelength. Particle-in-cell si…

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