Speaker
Description
Laser-plasma acceleration (LPA) is a transformative approach in high-energy physics, promising applications from nuclear isomer production to medical treatment, astrophysics, and beyond. However, accurate, in-situ measurement of the accelerated electron beam charge remains fundamentally challenged by the intense operational environment. At ELI-NP, the Turbo-Integrating Current Transformer (Turbo-ICT) was deployed for this task. Despite its advantages, critical limitations were encountered. Our presentation therefore focuses on the influence of the intense laser-driven electromagnetic pulse (EMP)—a fundamental collateral phenomenon inherent to ultra-intense laser–plasma interactions—which generates substantial electromagnetic interference (EMI), induce nonlinear signal distortions, and limits the operational reliability of the Turbo-ICT in a high-energy, timing-jitter–sensitive environment. Initial measurements with Möbius loop antennas indicate EMP amplitudes span a broad range, peaking inside the interaction chamber with persistent components in adjacent zones. These findings quantify the detrimental influence of EMP-induced coupling on diagnostic performance and shot-to-shot correlations. We outline our mitigation strategy for these effects. This work advances the development of robust online diagnostics, addressing the lack of reliable shot-by-shot diagnostics for high-repetition-rate experiments, thereby enhancing precision methodologies for this demanding regime.
Funding Agency
Romanian Ministry of Education and Research contract PN23210105, ELI-RO/RDI/2024_040, ELI-RO/RDI/2024_021, ELI-RO/DEZ/2023_001, ELI-NP Phase 2 ERDF/COP(1/07.07.2016, ID1334), and IOSIN-ELI.
| Paper status | Proceeding files received |
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