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Tokamak Energy
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Tokamak Energy
@TokamakEnergy
Private UK company pioneering commercial fusion energy and superconducting technologies.
Oxford, UK
tokamakenergy.co.uk
Joined December 2010
715
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    Tokamak Energy
    @TokamakEnergy
    Oct 15, 2025
    Plasma is better in colour! Watch one of our latest #plasma pulses in our ST40 tokamak, filmed using our new high-speed colour camera at an incredible 16,000 frames per second. Each pulse lasts around a fifth of a second. What you’re seeing is mostly visible light from the
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    Tokamak Energy
    @TokamakEnergy
    Jul 17, 2025
    Taming the Edge: How lithium could help us control #fusion plasmas. This video captures the first flashes of lithium being injected into the #plasma of our ST40 tokamak, marking the start of our exploration into its effects. Why lithium? In fusion research, we aim for H-mode,
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    Tokamak Energy
    @TokamakEnergy
    Nov 20, 2025
    We're celebrating a world-first for #fusion and #superconducting magnet technology! For the first time, we've replicated fusion power plant–relevant magnetic fields in a complete high-temperature superconducting (HTS) #magnet system. Why it matters: HTS delivers around 200×
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    Tokamak Energy
    @TokamakEnergy
    Mar 30, 2021
    We are excited to share that Tokamak Energy has achieved first plasma in our newly upgraded #fusion device ST40. This means we are on our way to 100 million degrees! A first for a privately-owned company. #fusionenergy #innovation Read more here: tokamakenergy.co.uk/tokamak-energy…
    Hydrogen plasma in ST40 spherical tokamak after £25m upgrade
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    Tokamak Energy
    @TokamakEnergy
    Apr 16, 2025
    Turning dreams into reality! Our groundbreaking Demo4 #fusion #magnet system is almost complete, with testing set to begin soon. This is the first chance to test our transformative #superconducting magnet technology in a full tokamak setup, providing essential data as we scale up
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    Tokamak Energy
    @TokamakEnergy
    Feb 28, 2024
    These are the latest images of our world-first ‘Demo4’ High Temperature #Superconducting (HTS) fusion #magnet system, currently being assembled in a purpose-built facility at our Oxfordshire site. We’ve recently completed testing of key components, including the ‘top plate’ and
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    Tokamak Energy
    @TokamakEnergy
    Mar 10, 2022
    Closer to a new, secure and carbon-free energy source- Another world record by @TokamakEnergy⚡️ The #ST40 spherical tokamak has achieved a plasma temperature of 100 million degrees Celsius, the threshold required for commercial fusion energy. youtu.be/lfvkvi4ibME
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    Tokamak Energy
    @TokamakEnergy
    Feb 21, 2025
    Our 2025 ST40 campaign is up and running! It may look like a sprinkling of fairy dust, but this plasma pulse shows boron being introduced into the #plasma via our new impurity powder dropper (IPD). Boron is used in the tokamak for wall conditioning, creating a protective layer on
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    Tokamak Energy
    @TokamakEnergy
    Jun 27, 2025
    Heating plasma to over 100 million degrees Celsius? Meet the gyrotron. Reaching the extreme temperatures needed for #fusion - more than 100 million degrees Celsius, over six times hotter than the core of the sun - demands advanced heating technology. One of the most important is
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    Tokamak Energy
    @TokamakEnergy
    Jul 19, 2023
    This is one of the first #plasma pulses of our new campaign with our record-breaking ST40 tokamak. Last year, we achieved verified plasma temperatures of over 100 million degrees Celsius, considered the threshold for #fusionenergy and proving the potential for #fusion power
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    Tokamak Energy
    @TokamakEnergy
    Feb 18, 2025
    Here’s the latest image of our flagship Demo4 high temperature #superconducting (HTS) #fusion magnet system as it reaches a significant milestone! The installation of the poloidal field (PF) coils into their enclosures and their fastening around the toroidal field (TF) limbs
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    Tokamak Energy
    @TokamakEnergy
    Jun 19, 2024
    Our ground-breaking Demo4 high temperature #superconducting (HTS) fusion #magnet system has passed an important milestone. We’ve now successfully validated cryogenic test results on all toroidal field (TF) limbs in our liquid nitrogen bath at -200 degrees Celsius. Each TF limb
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    Tokamak Energy
    @TokamakEnergy
    Jan 3, 2025
    2025 is set to be a big year for Demo4, our flagship high temperature #superconducting (HTS) #fusion magnet system. Tokamaks use strong magnetic fields to confine and control a plasma. HTS #magnets, which are over five times more energy-efficient than conventional
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    Tokamak Energy
    @TokamakEnergy
    Feb 4, 2025
    We’re preparing our ST40 tokamak for a big year ahead! The vibrant colours in these images are from the boronisation process, where we coat the inner walls of the tokamak with a thin layer of boron. This conditions the walls, reducing plasma-polluting impurities and enhancing
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