Tag

Tokamak

All articles tagged with #tokamak

science13 days ago•7 min saved

High-Speed Imaging Reveals Lithium Pathways in Fusion Reactor Heat Management

Tokamak Energy has used a 16,000 fps color camera to observe lithium impurities in the ST40 spherical tokamak, aiming to solve the critical challenge of divertor heat exhaust. The footage shows how lithium transitions from neutral atoms to ions, tracing magnetic field lines and cooling the plasma edge. This data supports the 'X-point radiator' concept, which uses impurities to radiate heat away before it damages reactor components, with early results showing reduced heat loads on divertors.

via ScienceAlert|

#divertor-heat-load #fusion-energy #lithium-impurity

science1 month ago•5 min saved

Alfvén-Driven Flows Quiet Turbulence, Boosting Tokamak Fusion Prospects

Experiments on the DIII-D tokamak show that Alfvén eigenmodes can drive shear flows that suppress plasma turbulence, improving heat confinement and potentially boosting fusion performance. Using the Motional Stark Effect diagnostic, researchers observed AE-driven changes in magnetic structure consistent with self-regulating currents, suggesting a pathway to more efficient confinement—though practical application remains years away; study published in Physical Review Letters.

via ScienceAlert|

#alfven-eigenmodes #fusion #plasma-physics

technology4 months ago•4 min saved

The World’s Biggest Fusion Bet Heads Toward Reality in France

In southern France, ITER—the world’s largest fusion reactor and a $22 billion multinational project—strives to sustain 150-million-degree plasma in a tokamak using superconducting magnets, aiming to prove fusion can provide abundant, emission-free energy; despite delays, heat-shield cracks, and a $5 billion cost overrun, ITER’s open-science model and global collaboration are shaping the path for private fusion startups.

via CNET|

#clean-energy #fusion-energy #international-collaboration

technology5 months ago•181 min saved

Fusion startup eyes grid power by the 2030s with a Virginia plant plan

Commonwealth Fusion Systems is advancing its donut-shaped tokamak in Devens, MA, aiming to produce net energy and plug a future 400‑MW fusion plant into PJM’s grid by the 2030s. The demonstration device is about 75% complete and could be operational next year, with the Fall Line Fusion Power Station in Virginia envisioned next. Google and Eni have already secured buyers, and while the grid interconnection process will take years, proponents say fusion could become a grid-ready technology sooner than some expect, despite ongoing challenges in sustaining continuous fusion power.

via CNN|

#commonwealth-fusion-systems #fusion #grid

science9 months ago•3 min saved

China’s 'Artificial Sun' Breaks Fusion Limit, Advancing Clean Energy Goals

Researchers in China have demonstrated a method to surpass the Greenwald density limit in a fusion reactor by controlling plasma-wall interactions, potentially paving the way for more efficient fusion energy production.

via ScienceAlert|

#east #fusion #greenwald-limit

science9 months ago•3 min saved

China's 'Artificial Sun' Breaks Fusion Density Records, Approaching Break-Even

Chinese scientists have made a significant advancement in nuclear fusion research by experimentally surpassing the Greenwald density limit in a tokamak, indicating progress toward achieving sustained fusion energy, which remains years away but is a crucial step for future energy solutions.

via Crude Oil Prices Today | OilPrice.com|

#china #energy-breakthrough #greenwald-density-limit

science9 months ago•2 min saved

China’s EAST Tokamak Achieves Breakthrough in Stable Nuclear Fusion

Scientists using China's EAST tokamak have achieved a long-theorized 'density-free regime' in fusion plasma, surpassing traditional density limits without instability, potentially paving the way for more efficient fusion energy development.

via ScienceDaily|

#china #density-limits #fusion-energy

science9 months ago•3 min saved

China's Fusion Breakthrough Surpasses Plasma Density Limit, Advancing 'Artificial Sun' Technology

Scientists working with China's EAST reactor have achieved a significant breakthrough by reaching the 'density-free regime,' where plasma remains stable at higher densities than previously possible, marking a major step toward achieving fusion ignition and advancing fusion energy research.

via SciTechDaily|

#east-reactor #fusion-breakthrough #fusion-energy

science1 year ago•3 min saved

Scientists Make Breakthrough in Nuclear Fusion Scaling

MIT researchers have made progress in nuclear fusion by developing a physics-based machine learning model to predict plasma behavior in tokamak reactors, aiding safer and more reliable energy production, marking a significant step toward practical fusion energy.

via Gizmodo|

#machine-learning #mit #nuclear-fusion

science1 year ago•2 min saved

Scientists Discover Breakthrough for Nearly Limitless Energy

Experiments at San Diego's DIII-D National Fusion Facility have demonstrated that a new plasma shape called 'negative triangularity' can enhance the stability of tokamak fusion reactors, potentially paving the way for more efficient and sustainable nuclear fusion energy, which could provide nearly limitless low-carbon power.

via yahoo.com|

#fusion-energy #negative-triangularity #plasma-configuration

science1 year ago•5 min saved

Inverted D Plasma Fusion Breakthrough Addresses Key Energy Challenge

Researchers at the DIII-D National Fusion Facility have demonstrated that an inverted 'D' shaped plasma, known as negative triangularity, can achieve stable, high-performance conditions for nuclear fusion, potentially addressing heat management and stability challenges in future fusion reactors.

via Interesting Engineering|

#fusion #heat-management #negative-triangularity

science1 year ago•2 min saved

Researchers find more reliable method for limitless energy machine

Scientists at EPFL have developed the X-point target radiator, a new magnetic control method that prevents overheating in fusion reactors, making fusion power more reliable and practical, with potential commercial deployment by the 2030s.

via Yahoo|

#fusion-energy #heat-management #renewable-energy

science1 year ago•3 min saved

Innovative X-Point Radiator Prevents Tokamak Overheating

Researchers at EPFL have developed a new X-point target radiator for tokamaks that enhances heat dissipation, potentially preventing overheating and improving the durability and performance of fusion reactors, with plans for implementation in next-generation devices like MIT's SPARC.

via Phys.org|

#fusion-energy #nuclear-fusion #plasma-cooling

science-and-technology2 years ago•5 min saved

"Revolutionary Fusion Reactor Design Draws Inspiration from Ancient Japanese Art"

Scientists at PPPL have developed a method to manage plasma in fusion reactors by utilizing magnetic field imperfections, inspired by the Japanese art of Kintsugi. By tailoring magnetic field imperfections, they have enhanced plasma stability, paving the way for more reliable and efficient fusion power. This approach allows simultaneous control of instabilities in the core and edge of the plasma, a significant breakthrough in fusion research. The research has implications for future tokamak fusion pilot plants and is being extended to include an artificial intelligence version of the control system for greater efficiency.

via SciTechDaily|

#fusion-reactor #kintsugi #magnetic-fields

science-and-technology2 years ago•42 min saved

"AI Breakthrough: Overcoming Fusion Plasma Instability for Near-Unlimited Clean Energy"

Nuclear fusion experiments in tokamaks have achieved significant success, but plasma disruption due to tearing instability remains a critical issue. To address this, researchers have developed an AI-based tearing-avoidance system using deep reinforcement learning (RL) to actively control the beam power and plasma shape in real time, maintaining low tearability and high plasma pressure. Experiments at the DIII-D tokamak demonstrated the system's ability to avoid disruptive tearing instability, showcasing the potential for AI-accelerated real-time instability-avoidance techniques in fusion energy research.

via Nature.com|

#deep-reinforcement-learning #nuclear-fusion #plasma-control-system