Researchers are using smaller tokamaks and computer models to test approaches for suppressing runaway electrons. This research used measurements and modeling to demonstrate that perturbations to the magnetic field in a tokamak fusion plasma can suppress high-energy runaway electrons. The results could help improve the operation of ITER and other future fusion devices.
Article profiles 47-year tenure and ground-breaking contributions of distinguished theoretical physicist.
An intern about to start a Science Undergraduate Laboratory Internship (SULI) at PPPL and another University of Texas-Dallas student kicked off their summer with a friendly online chat with U.S. Energy Secretary Jennifer Granholm about their plans for the summer.
PPPL scientists have developed a type of deception to calm unruly plasma and accelerate the harvesting on Earth of fusion energy.
PPPL develops a model once thought to be impossible for delivering radio waves to heat tokamak plasmas.
A profile of scientific essays and a new forward to Vannevar Bush’s 1945 landmark “Science The Endless Frontier,” together with interviews with the authors.
Stellar supercomputer marks huge leap forward in the capacity of the Princeton Plasma Physics Laboratory to address fusion development issues.
Based on input from the fusion and plasma research community, the Fusion Energy Sciences Advisory Committee has put forth a new vision and goal. Based on decades of advances in fusion research, they propose working to launch an economically-viable pilot fusion power plant by the 2040s.
The U.S. Department of Energy (DOE) Fusion Energy Sciences Advisory Committee (FESAC) has adopted and endorsed a new report that lays out a strategic plan for fusion energy and plasma science research over the next decade. The report has been…
After nearly five years of fabrication and a battery of rigorous testing and troubleshooting, General Atomics (GA) has completed the first major milestone in one of the United States’ largest contributions to the ITER fusion project in France. The first module of the ITER Central Solenoid will join six others still in fabrication to make up the largest pulsed superconducting magnet in the world. The Central Solenoid will play a critical role in ITER’s mission to establish fusion as a practical, safe and nearly inexhaustible source of clean, abundant and carbon-free electricity.
Researchers from the DIII-D National Fusion Facility are preparing to support their colleagues at the National Spherical Tokamak Experiment-Upgrade (NSTX-U) at the U.S Department of Energy’s (DOE) Princeton Plasma Physics Laboratory (PPPL) in a quest to develop sustained fusion energy. Under recently announced DOE funding programs, two teams at DIII-D will perform research on physics and instrumentation for NSTX-U as the facility’s staff work to restart operations late next year.
Students attending the third annual graduate summer school at PPPL gathered virtually, due to travel restrictions, to get a broad overview of the field of plasma physics.
An international group of researchers has developed a technique that forecasts how tokamaks might respond to unwanted magnetic errors. These forecasts could help engineers design fusion facilities that create a virtually inexhaustible supply of safe and clean fusion energy to generate electricity.
New funding will upgrade key diagnostics on the National Spherical Tokamak Experiment-Upgrade, the flagship facility at PPPL.
A team of ORNL researchers working with tungsten to armor the inside of future fusion reactors had some surprising results when looking at the probability of contamination.
Initial results of the Lithium Tokamak Experiment-Beta (LTX-β) at PPPL show that the enhancements significantly improve performance of the plasma that will fuel future fusion reactors.
Scientists at the DIII-D National Fusion Facility have for the first time studied the internal structure and stability of high-energy runaway electron (RE) beams in a tokamak. The finding could provide a way to control the damaging potential of RE beams and could contribute to future power production using tokamak fusion power plants.
Scientists at PPPL have gained new insight into a common type of plasma hiccup that interferes with fusion reactions. These findings could help bring fusion energy closer to reality.
ORNL Story Tips: Shuffling atoms, thinning forests, fusion assembly and nuclear medicine
New research points to improved control of troublesome magnetic islands in future fusion facilities.
PPPL researchers find that jumbled magnetic fields in the core of fusion plasmas can cause the entire plasma discharge to suddenly collapse.
The techniques Theodore Biewer and his colleagues are using to measure whether plasma has the right conditions to create fusion have been around awhile.
Advanced design of the world’s largest and most powerful stellarator demonstrates the ability to moderate heat loss from the plasma that fuels fusion reactions.
Recent experiments in the DIII-D tokamak demonstrate that more turbulence at the edge of the plasma can result in it being hotter.
Researchers at the DIII-D National Fusion Facility recently achieved a scientific first when they used machine learning calculations to automatically prevent fusion plasma disruptions in real time, while simultaneously optimizing the plasma for peak performance. The new experiments are the first of what they expect to be a wave of research in which machine learning–augmented controls could broaden the understanding of fusion plasmas. The work may help deliver reliable, peak-performance operation of future fusion reactors.
Scientists developed a new model to describe how large, periodic bursts of plasma known as edge localized modes (ELMs) erode parts of tokamak walls. Tokamaks are devices used to study the process of fusion.
Researchers from TAE Technologies used the Argonne Leadership Computing Facility to support their fusion research. The company is working to develop the world’s first fusion device that can generate electricity and is commercially viable.
PPPL physicists have identified a method by which instabilities can be tamed and heat can be prevented from leaking from fusion plasma, giving scientists a better grasp on how to optimize conditions for fusion in devices known as tokamaks.
PPPL physicist Fatima Ebrahimi has used high-resolution computer simulations to confirm the practicality of the CHI start-up technique. The simulations show that CHI could produce electric current continuously in larger, more powerful tokamaks than exist today to produce stable fusion plasmas.
Rutgers engineers have embedded high performance electrical circuits inside 3D-printed plastics, which could lead to smaller and versatile drones and better-performing small satellites, biomedical implants and smart structures. They used pulses of high-energy light to fuse tiny silver wires, resulting in circuits that conduct 10 times more electricity than the state of the art, according to a study in the journal Additive Manufacturing. By increasing conductivity 10-fold, the engineers can reduce energy use, extend the life of devices and increase their performance.
Profile of PPPL’s Chris Smiet and Rupak Mukherjee and the post-doctoral honors they have won.
Surprise discovery shows that turbulence at the edge of the plasma may facilitate production of fusion energy.
A look at four INFUSE projects to speed the development of fusion energy that PPPL is working on.
Future fusion reactors will require materials that can withstand extreme operating conditions, including being bombarded by high-energy neutrons at high temperatures. Scientists recently irradiated titanium diboride (TiB2) in the High Flux Isotope Reactor (HFIR) to better understand the effects of fusion neutrons on performance.
The U.S. Department of Energy (DOE) announced funding for 12 projects with private industry to enable collaboration with DOE national laboratories on overcoming challenges in fusion energy development.
The awards are the first provided through the Innovation Network for Fusion Energy program (INFUSE).
Researchers have constructed a framework for starting and raising a fusion plasma to temperatures rivaling the sun in hundreds of milliseconds.
ORNL story tips: Reaching the boiling point for HVACs; showcasing innovation for technology transfer; using neutrons to lend insight into human tissue; and heating the core in a fusion prototype experiment.
Vsevolod A. Soukhanovskii is a group leader at the Fusion Energy Sciences Program at the Department of Energy’s Lawrence Livermore National Laboratory. He and his research group are stationed on a long-term assignment focusing on edge plasma transport and plasma-surface interactions in spherical tokamaks at the Department of Energy’s Princeton Plasma Physics Laboratory.
Thin-walled diamond shells carry payloads of boron dust; the dust mitigates destructive plasma disruptions in fusion confinement systems. The Science To put the energy-producing power of a star to work, researchers create and contain plasma—the ultra-hot gas that makes up…