First Light Fusion: The world’s leading inertial fusion company

On the 25th of January 2023 in Oxford, UK, the UK Atomic Energy Authority (‘UKAEA’) and First Light Fusion (‘First Light’) have signed an agreement for the design and construction of a new purpose-built facility to house First Light’s Machine 4 at UKAEA’s Culham Campus in Oxfordshire. Like NIF in the US, First Light is pursuing an “inertial confinement” approach to fusion. First Light’s method leverages the same physics proven by NIF but combines it with a unique approach which involves firing a projectile at a fuel pellet to force it to fuse and produce energy. This approach has been validated by UKAEA. Projectile fusion is a new approach to inertial fusion that is simpler, more energy efficient, and has lower physics risk. The key enabler is First Light’s unique new target technology, proven through a world-first result, showing fusion with a projectile for the first time.


18:30: Introduction

18:35: Presentation by Jonathan Shimwell

19:25: Q&A

19:45: Closing


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Deadline: Thursday the 28th of September, 12 AM

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Sep 28, 2023


6:30 pm - 7:45 pm




  • Jonathan Shimwell
    Jonathan Shimwell

    Jonathan Shimwell has a PhD in Physics from the University of Sheffield. He holds a Lead Scientist position at First Light Fusion. Primarily a neutronics expert with focus on developing automated open source workflows that integrate into wider reactor design studies. Experience in fusion research at both government and start-up level including EU-DEMO, STEP, UKAEA, CFS, KIT and CEA. Previous career as a physics teacher and continues to teach neutronics at UK universities and the NEA databank. A full stack analysis working on: nuclear data processing, particle transport code development, parametric geometry creation, conversion of models, automated testing with CI/CD, user interface creation, containerised software environment creation, cloud computing / web deployment and dissemination. A contributor and creator in the open source neutronics community. Creating software packages such as Paramak, neutronics-workshop and a variety of web apps on A contributor to popular open source neutronics codes including OpenMC and DAGMC.

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