7–11 Sept 2025
Teaching Hub 502
Europe/London timezone

EPAC beamline Prototype: Development and optimisation of a high-repetition-rate LWFA system

MOPCO09
8 Sept 2025, 16:00
2h
Courtyard, Liverpool Guild of Students

Courtyard, Liverpool Guild of Students

Liverpool Guild of Students, University of Liverpool.
Poster Presentation MC09: Overview and Commissioning Monday Poster Session

Speaker

KIRILL FEDOROV (Central Laser Facility)

Description

The Extreme Photonics Applications Centre (EPAC) is a next-generation high-power laser facility designed to deliver stable, high-repetition-rate (10 Hz) LWFA electron beamline with high quality parameters (∼1nC, ∼1 GeV, <5% energy spread). As a crucial preparatory step, one of the 10 TW laser system (Gemini) at the Central Laser Facility is being repurposed as a prototype beamline to de-risk EPAC commissioning and to develop critical subsystems.
We report on a progress in three core areas:
1. Targetry Development: We designed and implemented gas-cell targets featuring enhanced durability, leveraging replaceable CVD diamond apertures and modular components to support 5 Hz operation. 2. Beam Optimization: Using Bayesian optimization, we explore tuning of key LWFA outputs—electron charge, energy, divergence, and X-ray flux and energy—achieving improved performance across shots. 3. Integrated Simulation Framework: To support beamline design, we are developing a modular toolkit that couples fluid dynamics (OpenFOAM), particle-in-cell (FBPIC), and Monte Carlo (Geant4) simulations.

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Author

KIRILL FEDOROV (Central Laser Facility)

Co-authors

Oliver Finlay (Central Laser Facility) Dan Symes (Central Laser Facility) Adam Bennett (Central Laser Facility) Josh Giles-Friend (Central Laser Facility) Archit Bhardwaj (Central Laser Facility) Chris Armstrong (Central Laser Facility) Evan Kiely (University of Warwick) Rajeev Pattathil (Central Laser Facility) Carl Selig (Central Laser Facility) Adrian Thomas (Central Laser Facility) Christopher Spindloe (Central Laser Facility) Benjamin Morkot (Central Laser Facility) Stephen Dann (Central Laser Facility) Benjamin Spiers (Central Laser Facility) Christina Hernandez-Gomez (Central Laser Facility) David McCartney (Queen's University Belfast) Matthew Streeter (Queen's University Belfast)

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