Laser-Plasma Accelerators Workshop

Session

Parallel Session

14 Apr 2025, 15:00

Hotel Continental, Ischia Island (Naples, Italy)

Conveners

Parallel Session: Electron Acceleration

• Ela Rockafellow (University of Maryland)

Parallel Session: Ion Acceleration

• Martin Rehwald

Parallel Session: Electron Acceleration

• Josh Stackhouse (Lawrence Berkeley National Laboratory)

Parallel Session: Ion Acceleration

• Charlotte Palmer (Queen's University Belfast)

Parallel Session: Secondary Radiation Source

• Yinren Shou (Department of Physics of Complex Systems, Weizmann Institute of Science)

Parallel Session: Applications

• Sam Barber (LBNL)

Parallel Session: Diagnostics and Plasma Sources

• Lucio Crincoli (Istituto Nazionale di Fisica Nucleare)

Parallel Session: Machine Learning, Theory and Simulations

• Jorge Vieira (Instituto Superior Técnico)

Parallel Session: Laser Technology

• Gemma Costa (Istituto Nazionale di Fisica Nucleare)

Parallel Session: Facilities

• Alessio Del Dotto (Istituto Nazionale di Fisica Nucleare)

25. 20-dimension Bayesian Optimization of maximum proton energy in the Target Normal Sheath Acceleration regime using dynamic wavefront shaping on a short focal length off-axis parabola system

Elias Catrix (Institut national de la recherche scientifique)

14/04/2025, 15:00

Ion acceleration

Oral contribution

To optimize proton maximum energy, we adjusted the deformable mirror’s actuators, which directly influence the laser spot size and shape (measured by a wavefront analyzer). Starting with all voltages set to 0V, we aimed to find the optimal configuration to maximize proton energy. Utilizing the ALLS 150 TW laser’s high-repetition rate and a multi-target holder, we collected a dataset of...

7. Experimental and Simulation Study on Direct Acceleration of Electron Beams Driven by Vortex Lasers

Mr Wenpeng Wang (Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences)

14/04/2025, 15:00

Electron acceleration

Oral contribution

Recent developments in relativistic Laguerre–Gaussian (LG) lasers have sparked physical research into petawatt (PW) laser facilities. It has been observed that LG lasers not only produce hollow laser intensity but also generate novel structured electric fields for different LG modes. In the case of left circularly polarized LG lasers, the longitudinal electric field, combined with the hollow...

35. Progress towards high-repetition-rate GeV-scale plasma-modulated plasma accelerators

Simon Hooker (University of Oxford)

14/04/2025, 15:20

Electron acceleration

Oral contribution

We describe recent results from our programme to develop high-repetition-rate, GeV-scale plasma-modulated plasma accelerators (P-MoPAs), which seeks to take advantage of advanced thin-disk lasers (TDLs) that can deliver joule-scale, picosecond-duration pulses, at kHz repetition rates.

A P-MoPA has three stages: (i) a modulator, in which a TDL pulse is guided in a hydrodynamic...

40. Ultra-efficient proton acceleration from planar cryogenic hydrogen jets at 1 Hz repetition rate

Stefan Assenbaum (Helmholtz-Zentrum Dresden-Rossendorf)

14/04/2025, 15:20

Ion acceleration

Oral contribution

Laser plasma-based ion accelerators have not yet reached their full potential in producing high radiation doses at high particle energies, mainly due to the lack of a suitable high-repetition-rate targets that also provide adequate control of the plasma conditions. Cryogenic, solid gas jet targets are being developed to fill this gap, as they combine many favourable properties for studying...

29. Progress in electron acceleration at CALA

Prof. Stefan Karsch (LMU München)

14/04/2025, 15:40

Electron acceleration

Oral contribution

This contribution will present recent progress and limitations of the electron acceleration program at CALA. We are working on several programmatic goals:
1. providing monoenergetic multi-GeV beams for our planned Breit-Wheeler experiment.
2. expanding the hybrid LWFA-PWFA scheme towards ultra-low emittance and high transformer ratios, while characterizing the hybrid LWFA-PWFA plasma wave...

44. The contribution of collisional ionization to energetic highly charged Au ions by high-intensity high-contrast laser pulses in a relativistic transparency regime

Mamiko Nishiuchi (National Institutes for Quantum Science and Technology(QST))

14/04/2025, 15:40

Ion acceleration

Oral contribution

The acceleration of heavy ions with mass number of ~200-class by high intensity femtosecond laser pulse is still challenging because of the too small knowledge of the ionization mechanisms which strongly couple to the dynamics of the plasma and determine the acceleration efficiency especially at the relativistically induced transparency (RIT) phase where efficient acceleration takes place. The...

54. Experimental and computational evaluation of Alpha particle production from Laser-driven proton-boron nuclear reaction in hole-boring scheme

Marine Huault (celia)

14/04/2025, 16:00

Ion acceleration

Oral contribution

Most of the previous studies [1,2,3] on laser-driven proton-boron nuclear reactions are based on the measurement of α-particles with Solid-State Nuclear Track Detectors (CR-39). However, the interpretation of CR-39 results is difficult due to the presence of several other accelerated particles, which can bias the analysis [4]. Furthermore, in some laser irradiation geometries, cross-checking...

30. Laser Wavefront-based Classification of successful Injection in LWFA

Johannes Zirkelbach

14/04/2025, 16:00

Electron acceleration

Oral contribution

We present an in-depth analysis of Laser Wakefield Acceleration (LWFA) experiments performed at the ATLAS-3000 system at CALA in Garching, achieving GeV-scale electron energies with a slit-nozzle target. Through simultaneous monitoring of laser and electron diagnostics for about 2000 shots performed at a 0.25 Hz repetition rate, we identify the laser wavefront as the primary factor influencing...

64. Diagnosing the onset of relativistically induced transparency in high-energy laser-driven proton acceleration experiments

Karl Zeil (Helmholtz-Zentrum Dresden-Rossendorf), Karl Zeil (Helmholtz-Zentrum Dresden-Rossendorf)

14/04/2025, 16:20

Ion acceleration

Oral contribution

Ion acceleration via compact laser-plasma sources holds great potential for applications from radiation therapy research to fusion research. Achieving the desired beam quality requires a deep understanding and precise control of laser-plasma interactions. Our collaborative research at the DRACO PW (HZDR) and J-KAREN-P (KPSI) laser systems investigates the promising regime of Relativistically...

46. Increasing the energy of high-quality electron bunches from a hybrid L-PWFA

Moritz Foerster (LMU Munich)

14/04/2025, 16:20

Electron acceleration

Oral contribution

Hybrid laser and electron beam-driven plasma accelerators (L-PWFA) have been a growing focus in recent years, combining the strengths of laser wakefield acceleration (LWFA) and particle beam-driven plasma wakefield acceleration (PWFA). In this approach, an LWFA stage generates a high-current electron bunch, which drives a subsequent PWFA stage where a witness bunch is internally injected and...

11. A parametric approach to plasma wakefield acceleration at CLARA

Hossein Saberi (University of Manchester and Cockcroft Institute)

15/04/2025, 15:00

Electron acceleration

Oral contribution

The Compact Linear Accelerator for Research and Applications (CLARA) at Daresbury Laboratory in the UK is a state-of-the-art facility that provides mid-energy range, high-brightness electron beams for exploring innovative concepts in accelerator science and technology. An exciting upcoming development is the integration of the Full Energy Beam Exploitation (FEBE) beamline, specifically...

67. New designs of helical coil targets for laser-driven proton, carbon and alpha acceleration

Matthieu Bardon (CELIA)

15/04/2025, 15:00

Ion acceleration

Oral contribution

Helical coil targets [1] are commonly used to focus, collimate, bunch, and accelerate protons via the Target Normal Sheath Acceleration (TNSA) process, producing highly focused and collimated beams [2]. However, acceleration and bunching remain limited by current dispersion along the helix. To overcome this, we introduced a tube around the helix, reducing dispersion and enhancing bunching [3]....

59. Impact of the gas species and optical ionization effects in kHz laser-wakefield acceleration

Joséphine MONZAC

15/04/2025, 15:20

Electron acceleration

Oral contribution

Laser-wakefield acceleration (LWFA) of electrons at a kHz repetition rate holds significant promise for medical and industrial applications. Until recently, kHz laser systems have been limited to few-mJ pulses, necessitating sharp focusing and strong temporal compression to achieve relativistic intensities [Guénot 2017]. Continuous operation of a kHz laser-plasma accelerator requires...

83. Transforming Laser-Driven Proton Beams into Application-Ready Sources

Florian Kroll (Helmholtz-Zentrum Dresden-Rossendorf)

15/04/2025, 15:20

Ion acceleration

Oral contribution

Laser-plasma acceleration (LPA) generates ion beams with extraordinary properties. The inherently high number of accelerated ions, delivered in ultrashort bunches, makes LPA ion sources ideal for high-dose-rate applications such as radiobiology. However, these bunches exhibit high divergence and broad energy spectra, necessitating spatial and spectral shaping before utilization.

To address...

68. How are CEP effects affected by the injection mechanism in a Laser Wakefield Accelerator driven by near single-cycle laser pulses

Jerome Faure (Laboratoire d'Optique Appliquée)

15/04/2025, 15:40

Electron acceleration

Oral contribution

Our group has developed a laser wakefield accelerator (LWFA) based on a near-single-cycle laser driver, producing up to 10 MeV electron beams at kHz repetition rates [1]. For near-single-cycle laser pulses, the ponderomotive approximation breaks down and the plasma response becomes sensitive to the waveform of the laser field so that the carrier-envelope phase (CEP) can affect electron...

86. Quasi monochromatic Carbon beams acceleration in the peeler setup

Paolo Tomassini (ELI-NP and CNR-INO)

15/04/2025, 15:40

Ion acceleration

Oral contribution

In the peeler scheme the laser pulse is incident on the narrow edge of a tape-like target. The generated surface plasma wave accelerates the electrons peeled from the lateral surface of the target, thus generating an high-charge electron bunch that creates a large amplitude accelerating field for positive ions residing the in the target rear, allowing for the generation of quasi-mochromatic...

101. Injection dynamics in hybrid LWFA-PWFA plasma photocathodes

Thomas Heinemann (Heinrich-Heine-University Düsseldorf)

15/04/2025, 16:00

Electron acceleration

Oral contribution

Plasma photocathodes, also known as Trojan Horse injectors, utilise a comparatively low-intensity laser pulse to ionise and release electrons at defined locations directly inside a plasma wakefield. Provided a sufficiently strong wakefield, these electrons are initially compressed, trapped and subsequently accelerated. The trapped bunch characteristics are thereby largely determined by the...

154. Investigating particle acceleration and radiation generation from micro-structured targets in ultra-short pulse, ultra-high intensity laser-solid interaction

Josefine Metzkes (Helmholtz-Zentrum Dresden-Rossendorf)

15/04/2025, 16:00

Ion acceleration

Oral contribution

Micro-structured targets represent a well-researched approach for optimizing the laser-target interaction towards specific parameters of particle acceleration or radiation generation processes, e.g. enhanced production of Kalpha xray radiation or proton yield. However, due to the complexity of target production, experiments usually focus on a very small set of target geometries and a very...

108. Laser-Driven Proton Sources for Efficient Radiation Testing

Prof. Patrizio Antici (INRS)

15/04/2025, 16:20

Ion acceleration

Oral contribution

High radiation environments are present in many fields, such as fusion facilities, nuclear reactors, high-luminosity accelerators, space and defense sector. The employed materials, e.g. plasma facing materials, and devices, e.g. Commercial Off-The-Shelf (COTS) semiconductor components, need to withstand excessive stressful radiation levels. Quick and adequate qualification tests against...

105. Plasma electron acceleration driven by a long-wave-infrared laser

Michael Downer

15/04/2025, 16:20

Electron acceleration

Oral contribution

We report self-injecting LWFA driven by CPA-CO2 laser pulses of wavelength ~10 micrometers at Brookhaven's Accelerator Test Facility [1]. Long-wave IR pulses open opportunities to drive large wakes in low-density plasma more efficiently than near-IR pulses, potentially enabling higher-quality accelerated bunches. In experiments, 0.5-TW, 4-ps laser pulses generated no electrons, but drove...

33. Exploring deep in‑vivo application of laser-driven very-high, energy, wide spectrum electrons

Alessandro Flacco (LOA/ENSTA)

17/04/2025, 15:00

Applications

Oral contribution

Laser-driven electron acceleration schemes can be easily and reliably used to accelerate electrons in the energy band between 20 MeV and 200 MeV, termed Very-High Energy electrons (VHEE) in medical physics. Such radiation quality is regarded as a candidate for novel radiation therapy schemes, owing to a favorable depth-dose deposition profile and the possibility of reaching very-high...

23. Laser plasma wakefield based axion generation and detection

Prof. Min Chen (Shanghai Jiao Tong university)

17/04/2025, 15:00

Secondary radiation sources

Oral contribution

Axion and axion-like particle are the candidates of dark matter. In the current theoretical frame, they can couple with the electromagetic fields and convert to photons and vice versa. We proprosed a scheme to generate axions in a plasma bubble structure driven by two intense laser pulses. One pulse drives a nonlinear bubble wake in a plasma and the other propagates inside the bubble. The...

42. Commissioning results of the hard X-ray betatron source at ELI Beamlines

Marcel Lamač (ELI Beamlines)

17/04/2025, 15:20

Secondary radiation sources

Oral contribution

We present the results achieved during the commissioning of the ELI Gammatron beamline, a femtosecond hard X-ray betatron source based on laser wakefield acceleration driven by the petawatt-class L3 laser system (10 J, 27 fs, 3.3 Hz) at ELI Beamlines. Leveraging the small pointing and energy fluctuations of the laser system, we have successfully demonstrated laser wakefield acceleration of...

36. Laser-driven Particle Induced X-Ray Emission for Rapid Real-Time Analysis of Aerosols

Ms Canan Yağmur Boynukara (Sapienza University of Rome)

17/04/2025, 15:20

Applications

Oral contribution

We developed a laser-driven Particle Induced X-ray Emission (laser-PIXE) system utilizing compact and high-intensity particle sources to achieve rapid real-time elemental analysis of aerosols. Conventional PIXE techniques rely on large accelerators, limiting their use in on-site and real-time applications. Our study addresses this limitation by leveraging advancements in laser-driven particle...

38. The E332 experiment at FACET-II: first experimental demonstration of beam self-focusing in electron beam - multifoil collisions

Aimé Matheron

17/04/2025, 15:40

Applications

Oral contribution

When an electron bunch passes through a conducting foil, its self-fields are reflected at the foil surface, also known as Near-Field Coherent Transition Radiation (NF-CTR) resulting in a focusing effect for the electron beam. Passing through multiple foils may allow to focus the electron beam down to solid densities and generate collimated gamma-rays with micrometer source sizes and conversion...

75. Ultrashort pulse X-ray absorption spectroscopy using laser-plasma accelerators

Brendan Kettle (Imperial College London)

17/04/2025, 15:40

Secondary radiation sources

Oral contribution

Laser-plasma accelerators now regularly achieve GeV electron energies in laboratory-scale facilities, enabling new research opportunities. One significant application is the generation of ultrashort (few femtoseconds) X-rays through betatron electron oscillations. These broadband pulses are ideal for X-ray absorption spectroscopy (XAS), particularly XANES (X-ray Absorption Near Edge Structure)...

91. Bright solid high harmonic generation on GEMINI PW: unlocking a pathway to SF-QED

Robin Timmis (University of Oxford)

17/04/2025, 16:00

Applications

Oral contribution

For over twenty years high harmonic generation from the interaction between a relativistic laser pulse and solid target (SHHG) has been heralded as a realistic route to the Schwinger limit, the electromagnetic field intensity at which SF-QED effects can be probed in vacuum. Despite extensive simulation campaigns and the development of theoretical models of increasing sophistication,...

77. Thomson scattering for producing spatiotemporal optical vortices

Rafael Almeida (GoLP / Instituto de Plasmas e Fusão Nuclear Instituto Superior Técnico, Lisbon, Portugal)

17/04/2025, 16:00

Secondary radiation sources

Oral contribution

Accurate representation of electromagnetic wave packets in particle-in-cell simulations is crucial for ensuring that the outcomes closely align with experimental results. Conventional methods for laser injection rely on the paraxial and envelope approximations, effective for beams that are both long and wide with respect to the laser's wavelength. However, new laser systems are advancing...

153. FIREBALL: a platform for laboratory astrophysics

Eva Los (University of Oxford)

17/04/2025, 16:20

Applications

Oral contribution

We present the latest developments and results of the “FIREBALL” experiment: a platform developed to produce dense electron-positron pair beams to study the fireball model of gamma-ray bursts.

In the fireball experiments, the collision of a 440GeV/c proton beam from SPS with a bespoke target is used to generate pair beams orders of magnitude higher yield than previous and planned future...

93. Plasma Density Shaping for Enhanced Electron Beam Control and Brilliant X-ray Generation in Laser Wakefield Acceleration

Olle Lundh (Lund University)

17/04/2025, 16:20

Secondary radiation sources

Oral contribution

Energy gain in laser wakefield accelerators is limited by dephasing, and the resulting electron beams often exhibit high divergence, posing challenges for transport and applications. We experimentally demonstrate that tailoring the plasma density profile can mitigate both limitations. Using shock-assisted ionization injection, we generate quasi-monoenergetic 100 MeV electron bunches. A...

8. Development of gas targets for various laser-plasma experiments

Dr Sebastian Lorenz (The Extreme Light Infrastructure ERIC)

17/04/2025, 17:00

Diagnostics and Plasma Sources

Oral contribution

Various laser-plasma experiments, including those in laboratory astrophysics, particle acceleration, plasma physics, and X-ray generation, require advanced gas target technology—a system capable of delivering gas with a precisely defined density profile within a high-vacuum environment. The performance of particle beams and radiation in these experiments is highly sensitive to the optimal...

3. Exascale simulations of laser plasma accelerators with PIConGPU

Richard Pausch (Helmholtz-Zentrum Dresden - Rossendorf)

17/04/2025, 17:00

Machine Learning, Theory and Simulation

Oral contribution

Exascale simulation capabalities are now available for studying laser plasma accelerators using realistic laser and plasma descriptions and providing quantitative predictions. We present recent advances in modeling LPA at large scales for both electron and ion acceleration. We specifically discuss workflows for comparison to experiments and evaluate predictive capabilities. The role of...

74. Development of a High-Sensitivity Wavefront Sensor for KALDERA

Luisa Niggemeier (DESY)

17/04/2025, 17:20

Diagnostics and Plasma Sources

Oral contribution

At DESY, we are developing KALDERA, a high-repetition-rate laser system designed to enable active stabilization of laser-plasma acceleration through fast feedback systems. A critical step in this process is accurately measuring how variations in laser parameters affect the electron beam properties, with particular emphasis on the wavefront due to its significant influence on the acceleration...

5. e-e+ plasma generation and dynamics in laser interaction with solid-state target

Prof. Alexander Pukhov (uni duesseldorf)

17/04/2025, 17:20

Machine Learning, Theory and Simulation

Oral contribution

New laser facilities will reach intensities of 1023 Wcm−2. In these setups with extreme fields, quantum electrodynamic (QED) effects become important. We study high-intensity lasers grazing the surface of a solid-state target by two-dimensional particle-in-cell simulations with QED effects included. The two laser beams collide at the target surface at a grazing angle. Due to the fields near the...

88. Characterization and recent results of the LWFA driven COXINEL FEL

Ulrich Schramm (Helmholtz-Zentrum Dresden-Rossendorf)

17/04/2025, 17:40

Facilities

Oral contribution

This presentation summarizes recent progress made by the HZDR-Soleil collaboration on seeded free-electron-laser performance with the COXINEL line operated at HZDR's laser plasma electron accelerator.
Following the first demonstration of lasing [1], tuning range and output spectrum were studied [2], while a careful analysis of the shape of the interference pattern of seed and FEL light...

52. Data-Driven Control and Optimization of High Repetition Rate Laser-Plasma Accelerators

Sören Jalas

17/04/2025, 17:40

Machine Learning, Theory and Simulation

Oral contribution

The emergence of high-power laser systems approaching kilohertz repetition rates presents both a challenge and an opportunity for the next generation of laser-plasma accelerators (LPAs). The vast amount of data generated at these high repetition rates opens the door to novel, data-driven approaches for improving stability, beam quality, and reliability—critical steps toward making LPAs viable...

89. Diagnosing a metre-scale plasma discharge for plasma wakefield acceleration

Claudia Cobo (Imperial College London)

17/04/2025, 18:00

Diagnostics and Plasma Sources

Oral contribution

In order to reach higher energies, next generation plasma accelerators will use multi-meter plasma technology. Many applications will also require high repetition rates to obtain high average fluxes comparable to conventional radiofrequency accelerators. These long-scale plasmas are not trivial to produce due to the very high power requirements for gas ionisation.

We present the...

62. Simulating relativistic beam-plasma instabilities with the quasistatic PIC code QuaSSis

Quentin Labro (CEA/DAM/DIF)

17/04/2025, 18:00

Machine Learning, Theory and Simulation

Oral contribution

Quasistatic particle-in-cell (QSPIC) codes[1] are increasingly used to study laser or plasma wakefield accelerators. QSPIC codes decouple the slow evolution of a beam from the fast response of a plasma, which reduces the computational cost by several orders of magnitude compared with conventional PIC codes. In this presentation, we demonstrate the potential of the QSPIC method to investigate...

92. Compact high-resolution multi-GeV electron spectrometer for PW-laser-driven plasma accelerators

Michael Downer (The University of Texas at Austin)

17/04/2025, 18:20

Diagnostics and Plasma Sources

Oral contribution

We report the design and performance of a compact magnetic spectrometer tailored to unique characteristics of quasi-monoenergetic, multi-GeV electron bunches from petawatt-laser-driven wakefield accelerators: mrad-level shot-to-shot pointing fluctuations, co-generation of betatron X-rays and of background electrons with a broad energy spectrum. The spectrometer replaces the first screen of a...

87. Laser-plasma accelerator-based free-electron laser program at ELI Beamlines (ELI ERIC)

Dr Alexander Molodozhentsev (ELI-Beamlines)

18/04/2025, 15:30

Facilities

Oral contribution

The laser-plasma accelerator-based Free Electron Laser development program at ELI-ERIC (ELI Beamlines, Czech Republic) aims to utilize the unique properties of plasma accelerators to create compact FELs with exceptional performance regarding brightness, coherence, and pulse duration. The program is based on the advanced high-power, high-repetition-rate L2-DUHA laser system developed at ELI...

43. Status of the KALDERA drive-laser development for a next generation high repetition rate laser plasma accelerator

Dr Guido Palmer (Deutsches Elektronen-Synchrotron DESY)

18/04/2025, 15:30

Laser Technology

Oral contribution

During recent years DESY has strengthened its effort to evolve laser plasma acceleration technology from demonstration experiments towards reliably running machines. In this framework we develop the Ti:Sapphire based drive-laser KALDERA which is supposed to deliver up to kHz repetition rates at more than 100 TW of peak power in its final phase. Since current drive-lasers operate at the low...

28. High average power laser plasma acceleration at DESY

Dr Manuel Kirchen (Deutsches Elektronen-Synchrotron)

18/04/2025, 15:50

Laser Technology

Oral contribution

Laser-plasma acceleration (LPA) is a promising technology for future compact accelerators. However, the low repetition rate (typically few Hz) of today’s high-power laser systems prevents reaching the average power required by applications and hinders the implementation of fast feedback systems to mitigate beam instabilities. To this end, DESY has established a dedicated research program on...

96. Laser Wakefield Acceleration Experiments on the ZEUS Facility

Karl Krushelnick (University of Michigan/Laboratoire d'Optique Appliquee)

18/04/2025, 15:50

Facilities

Oral contribution

The Zettawatt Equivalent Ultrashort Pulse Laser System (ZEUS) is a user facility funded by the National Science Foundation and located at the University of Michigan in the US. ZEUS consists of a repetitive dual-beamline 3 PW laser system, a programmable multi-nanosecond pulse driver capable of delivering 100 J of energy, and three experimental areas with radiation shielding. It offers unique...

66. Development of the L2-DUHA dual output front end at ELI-ERIC

Alex Johannes Whitehead (ELI-Beamlines)

18/04/2025, 16:10

Laser Technology

Oral contribution

The 100 TW DPSSL-OPCPA L2-DUHA laser system is under development at ELI-ERIC, with the goal of being the driver for the Laser Plasma Accelerator (LPA) of the LUIS-beamline, an incoherent Extreme Ultraviolet (EUV) radiation setup under development at ELI-ERIC, aiming to produce the high-quality electron beam required for a LPA-based Free Electron Laser (FEL).

The L2-DUHA broadband front-end...

100. Lifetime of beam-driven wakes at FACET-II

Jason Brooks (The University of Texas at Austin)

18/04/2025, 16:10

Facilities

Oral contribution

The time for stationary plasma to recover its original state after a wake is excited determines repetition rate and luminosity of plasma-based colliders. Recent measurements at DESY [1] showed that an argon plasma of density ne≈$10^{16}$cm$^{−3}$ in which a 0.5J(0.5nC,1GeV) e-bunch excited a first wake supported excitation of a second wake at the same location with indistinguishable beam...

107. Fully synchronized high repetition rate Petawatt laser driver for betatron beamline on EuPRAXIA@SparcLab machine

Antoine Courjaud

18/04/2025, 16:30

Facilities

Oral contribution

Precise synchronization plays a major role in the stability of an accelerator-based light source, or for ultrafast dynamics studies. We will present our strategy and recent achievements applied to synchronize a kHz Ti:Sa ultrafast laser to a Terawatt Yb ultrafast laser. We report on the synchronization at few fs rms level, both on short-term and long-term.
We first synchronize the slave...

112. High repetition rate TiSa lasers for laser plasma acceleration

Vincent Leroux (Thales LAS France)

18/04/2025, 16:30

Laser Technology

Oral contribution

There is a growing interest of using Laser Plasma Acceleration (LPA) for societal applications provided that particle flux is large enough to fulfill the needs of those applications. This calls for the use of lasers with higher pulse repetition rate than the lasers used up to now in laser plasma acceleration research. In this talk, we present the achievements and the technology roadmap related...