6th European Advanced Accelerator Concepts workshop

Session

WG7: Beam diagnostics, instrumentation, Machine Learning

WG7

19 Sept 2023, 16:20

Hotel Hermitage, La Biodola Bay, Isola d'Elba, Italy

Conveners

WG7: Beam diagnostics, instrumentation, Machine Learning

• Rasmus Ischebeck (PSI)
• Andreas Döpp (LMU Munich)

WG7: Beam diagnostics, instrumentation, Machine Learning

• Andreas Döpp (LMU Munich)
• Rasmus Ischebeck (PSI)

406. Session 1A: Single-shot diagnostics

Andreas Döpp (LMU Munich), Rasmus Ischebeck (PSI)

19/09/2023, 16:20

176. GA-assisted Single-shot 3D-charge-density reconstruction of a laser wakefield kilo-ampere electron bunch via a TR-EO detector

Dr Kai Huang (Kansai Institute for Photon Science (KPSI), National Institutes for Quantum Science and Technology (QST))

19/09/2023, 16:25

WG7: Beam diagnostics, instrumentation, Machine Learning

Oral contribution

The realization of a compact X-ray free-electron laser for pump-probe applications is a popular topic in the research of laser wakefield acceleration. The 3D charge density is closely related with the 6D brightness that primarily determines the lasing process in the undulator. However, this parameter has not been experimentally measured in previous studies. We measured the 3D charge density of...

324. Diagnosing longitudinal electron bunch profiles by single-shot CTR spectrometry -- a window to LWFA injection dynamics

Alexander Debus (Helmholtz-Zentrum Dresden-Rossendorf)

19/09/2023, 16:45

WG7: Beam diagnostics, instrumentation, Machine Learning

Oral contribution

The longitudinal profile of ultra-short electron bunches from Laser wakefield accelerators (LWFA) intricately depends on the ultrafast injection dynamics and laser-electron beam interaction during acceleration. Detailed knowledge of these electron bunch temporal profile is critical for the design of future table-top x-ray light-sources, as well as for the characterization of ultrashort...

347. Single-Shot Ionization-Based Monitor for Pulsed Electron Beams

Pietro Musumeci

19/09/2023, 17:05

WG7: Beam diagnostics, instrumentation, Machine Learning

Oral contribution

We present an experimental demonstration of a single-shot, non-destructive electron beam diagnostic based on detecting the ionized particles generated by the passage of the primary beam through a low density pulsed gas sheet.
Efficient detection of the ionization events, coupled with a flexible electrostatic column design, allows the retrieval of information on beam charge, centroid...

407. Session 1B: Bayesian optimization

Andreas Döpp (LMU Munich), Rasmus Ischebeck (PSI)

19/09/2023, 17:25

304. Multi-objective and multi-fidelity Bayesian optimization of laser-plasma acceleration

Faran Irshad (Center of Advanced Laser Applications at Ludwig Maximilian University of Munich)

19/09/2023, 17:40

WG7: Beam diagnostics, instrumentation, Machine Learning

Oral contribution

Beam parameter optimization in accelerators involves multiple, sometimes competing objectives. Condensing these individual objectives into a single figure of merit unavoidably results in a bias towards particular outcomes. Finding an optimal objective definition then requires operators to iterate over many possible objective weights and definitions, a process that can take many times longer...

222. Tuning curves for a laser-plasma accelerator

Sören Jalas (DESY)

19/09/2023, 18:05

WG7: Beam diagnostics, instrumentation, Machine Learning

Oral contribution

In this talk, we explore recent results on optimal tuning of beam parameters of laser-plasma accelerators (LPA) at the LUX experiment. Precise control over electron beam parameters is essential for realizing the wide range of applications projected for LPAs. However, the complexity of the laser-plasma interaction makes tuning challenging, often leading to suboptimal outcomes. To address this...

408. Session 2A: Multi-shot diagnostics

Andreas Döpp (LMU Munich), Rasmus Ischebeck (PSI)

21/09/2023, 16:20

224. All-optical emittance measurement of LWFA electron beams

Alexander Sävert (Helmholtz Institut Jena)

21/09/2023, 16:25

WG7: Beam diagnostics, instrumentation, Machine Learning

Oral contribution

The emittance of an electron bunch is a fundamental property, which characterizes its quality in terms of applications. Nowadays, electron beams from laser wakefield accelerators have matured to even drive free electron lasers. Characterizing these beams in terms of emittance is still challenging, as single-shot measurements are required. However, widely used techniques like a pepper-pot mask...

220. In Situ Measurement of Electron Energy Evolution in a Laser-Plasma Accelerator

Dr Simon Bohlen (DESY)

21/09/2023, 16:45

WG7: Beam diagnostics, instrumentation, Machine Learning

Oral contribution

Plasma acceleration enables the acceleration of electrons to high energies over short distances as high electric fields on the order of 100 GV/m can be sustained in plasma. A precise knowledge of these fields is necessary for the stable and reliable operation of plasma accelerators. We report on a noninvasive method applying Thomson scattering to measure the evolution of the electron beam...

409. Session 2B: Surrogate Models and Data Management, including discussion

21/09/2023, 17:05

188. Machine Learning-based Data Analysis and Surrogate Modeling For COXINEL Experiment

Anna Willmann (HZDR)

21/09/2023, 17:20

WG7: Beam diagnostics, instrumentation, Machine Learning

Oral contribution

Recently, free electron lasing at UV wavelength has been demonstrated by deploying the COXINEL beamline driven by HZDR plasma accelerator in a seeded configuration[1]. Further control and optimization of such an FEL radiation require full knowledge of strongly-coupled multivariate parameters involved in laser plasma acceleration, electron beam transport and radiation generation. For this...

326. HELPMI: HElmholtz Laser-Plasma Metadata Initiative

Hans-Peter Schlenvoigt (Helmholtz-Zentrum Dresden - Rossendorf)

21/09/2023, 17:45

WG7: Beam diagnostics, instrumentation, Machine Learning

Oral contribution

HELPMI is a 2-year project, subsidized by the Helmholtz Metadata Collaboration, conducted by GSI, HI Jena and HZDR (lead). The aim is to start the development of a F.A.I.R. data standard for experimental data of the entire laser-plasma (LPA) community. Such standard does not yet exist. It will facilitate management and analysis of usually quite heterogeneous experimental data and logs by rich...

410. Concluding Working Group Discussion

21/09/2023, 18:10