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Plasma, Physics, Blobs, Tokamak, stellarator, Fusion, XGC1, Princeton, PPPL , Oak Ridge, ORNL

The Blob That Ate the Tokamak: Physicists Gain Understanding of How Bubbles at the Edge of Plasmas Can Drain Heat and Reduce Fusion Reaction Efficiency

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Scientists at PPPL have completed new simulations that could provide insight into how blobs at the plasma edge behave. The simulations, produced by a code called XGC1 developed by a national team based at PPPL, performed kinetic simulations of two different regions of the plasma edge simultaneously.

Science

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Fusion, tokamaks, Lithium

Innovative Design Using Loops of Liquid Metal Can Improve Future Fusion Power Plants, Scientists Say

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Article describes proposed design for production of steady-state plasma in future fusion power plants.

Science

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Fusion, Turbulence, plasma physics

PPPL Takes Detailed Look at 2-D Structure of Turbulence in Tokamaks

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Article describes study of cross-correlation of turbulence in tokamaks.

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Attosecond Laser Pulses, Tiny Energy Harvesters, School Energy Upgrade, and More in the DOE Science News Source

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Science

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Iter, Divertor plate, Heat flux, Fusion, Computer Simulation

Research Led by PPPL Provides Reassurance That Heat Flux Will Be Manageable in ITER

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Article describes simulated prediction of heat flux that ITER divertor plates will be able to tolerate.

Science

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Enhancing the Sensing of Diamonds, Mobile Microgrids, Self-Folding Robots, and More in the Engineering News Source

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Science

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Fusion, Plasma, Physics, PPPL , Princeton, ELM, modes, Energy, Tokamak, Instability, Gradient, Current

PPPL Physicist Discovers That Some Plasma Instabilities Can Extinguish Themselves

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PPPL physicist Fatima Ebrahimi has for the first time used advanced models to accurately simulate key characteristics of the cyclic behavior of edge-localized modes, a particular type of plasma instability. The findings could help physicists more fully comprehend the behavior of plasma, the hot, charged gas that fuels fusion reactions in doughnut-shaped fusion facilities called tokamaks, and more reliably produce plasmas for fusion reactions.

Science

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Fusion, fusion and plasma sciences, fusion energy, Fusion Energy Sciences, Nuclear Science, Nuclear, Advanced Scientific Computing Research, Oak Ridge Leadership Computing Facility, Physical Review Letters , Tokamak, tokamaks, tokamak edge, Princeton Plasma Physics Laboratory, PPPL , Princeton University, Princeton, Iter, Plasma, Exascale, plasma turbulence,

Extreme-Scale Code Models Extremely Hot Plasma to Explain Spontaneous Transition

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For the first time, scientists modeled the spontaneous bifurcation of turbulence to high-confinement mode, solving a 35-year-old mystery.

Science

Channels:

Fusion, instabilities, Neutral beam injection, plasma physics, National Spherical Torus Experiment-Upgade

Discovered: A Quick and Easy Way to Shut Down Instabilities in Fusion Devices

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Article describes use of second neutral beam injector to suppress instabilities on the NSTX-U







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