The Central Laser Facility (CLF) at STFC will play a leading role, drawing on its internationally recognised capabilities in high‑power laser–plasma interactions, advanced diagnostics, targetry, and high‑repetition‑rate operation, underpinned by facilities such as Gemini and the forthcoming EPAC petawatt laser systems.
Through the development of compact and cost‑effective laser–plasma accelerators, 4U‑PI will generate ion and neutron beams with ultrashort bunch durations and ultra‑high peak flux and dose rates, operating across regimes from single-shot to high repetition rate. These unique source characteristics will enable new research opportunities in ultrafast radiation biology and biomedical science, alongside applications in homeland security and fusion energy materials testing, directly supporting STFC’s strategic priorities in health, security, and energy. By leveraging collaboration between leading laser facilities such as CLF, HZDR, and the ELI Pillars, 4U‑PI will establish a coordinated, multi‑site platform for the user community.
