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DOE NEWS RELEASES

Key: Meeting M      Journal J      Funder F

Showing releases 1-25 out of 38.

1 | 2 > >>

Public Release: 19-Oct-2017
Plasma Physics and Controlled Fusion
The blob that ate the tokamak: Physicists gain understanding of bubbles at edge of plasmas
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.
US Department of Energy

Contact: Raphael Rosen
rrosen@pppl.gov
609-243-3317
DOE/Princeton Plasma Physics Laboratory

Public Release: 17-Oct-2017
Nuclear Fusion
Loops of liquid metal can improve future fusion power plants, scientists say
This article describes innovative liquid lithium loop to address needs of future fusion power plants.
DOE/Office of Science

Contact: John Greenwald
jgreenwa@pppl.gov
609-243-2672
DOE/Princeton Plasma Physics Laboratory

Public Release: 13-Oct-2017
Physics of Plasmas
PPPL takes detailed look at 2-D structure of turbulence in tokamaks
This article describes cross-correlation of turbulence in tokamaks.
US Department of Energy

Contact: John Greenwald
jgreenwa@pppl.gov
609-243-2672
DOE/Princeton Plasma Physics Laboratory

Public Release: 6-Oct-2017
PPPL and General Atomics team up to make TRANSP code widely available
Article describes coupling of TRANSP and OMFIT computer codes to make TRANSP more widely available.

Contact: John Greenwald
jgreenwa@pppl.gov
609-243-2672
DOE/Princeton Plasma Physics Laboratory

Public Release: 26-Sep-2017
Nuclear Fusion
Research led by PPPL provides reassurance that heat flux will be manageable in ITER
A new article describes a simulated prediction of divertor heat flux that ITER will be able to tolerate.
US Department of Energy

Contact: John Greenwald
jgreenwa@pppl.gov
609-243-2672
DOE/Princeton Plasma Physics Laboratory

Public Release: 21-Sep-2017
PPPL physicist Francesca Poli named ITER Scientist Fellow
Physicist Francesca Poli of the U.S. Department of Energy's Princeton Plasma Physics Laboratory (PPPL) has been appointed an ITER Scientist Fellow. She will join a network of researchers who have achieved international recognition and will work closely with ITER, an international tokamak under construction in France, to develop the scientific program to be carried out during the fusion device's lifetime.

Contact: John Greenwald
jgreenwa@pppl.gov
609-243-2672
DOE/Princeton Plasma Physics Laboratory

Public Release: 12-Sep-2017
Nuclear Fusion
Physicists propose new way to stabilize next-generation fusion plasmas
Recent experiments conducted on the DIII-D National Fusion Facility suggest that up to 40 percent of high-energy particles are lost during tokamak fusion reactions because of Alfvén waves.
US Department of Energy

Contact: Raphael Rosen
rrosen@pppl.gov
609-243-3317
DOE/Princeton Plasma Physics Laboratory

Public Release: 8-Sep-2017
Physics of Plasmas
Team led by graduate student at PPPL produces unique simulation of magnetic reconnection
There is a new application of the fluid model to reconnection in space plasmas.
National Science Foundation, National Security Agency, US Department of Energy

Contact: John Greenwald
jgreenwa@pppl.gov
609-243-2672
DOE/Princeton Plasma Physics Laboratory

Public Release: 28-Aug-2017
PPPL physicists essential to new campaign on world's most powerful stellarator
Physicists from the U.S. Department of Energy's (DOE) Princeton Plasma Physics Laboratory (PPPL) are providing critical expertise for the first full campaign of the world's largest and most powerful stellarator, a magnetic confinement fusion experiment, the Wendelstein 7-X (W7-X) in Germany. The fusion facility resumes operating on August 28, 2017, and will investigate the suitability of its optimized magnetic fields to create steady state plasmas and to serve as a model for a future power plant for the production of a "star in a jar," a virtually limitless source of safe and clean energy for generating electricity.
DOE/Office of Science

Contact: John Greenwald
jgreenwa@pppl.gov
609-243-2672
DOE/Princeton Plasma Physics Laboratory

Public Release: 24-Aug-2017
Physics of Plasmas
PPPL physicist discovers that some plasma instabilities can extinguish themselves
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.
DOE/Office of Science

Contact: Raphael Rosen
rrosen@pppl.gov
609-243-3317
DOE/Princeton Plasma Physics Laboratory

Public Release: 18-Aug-2017
Physical Review Letters
Discovered: A quick and easy way to shut down instabilities in fusion devices
This article describes suppression of instabilities with new neutral beam injector.
DOE/Office of Science

Contact: John Greenwald
jgreenwa@pppl.gov
609-243-2672
DOE/Princeton Plasma Physics Laboratory

Public Release: 18-Aug-2017
PPPL delivers new key components to help power a fusion energy experiment
Article describes PPPL design and delivery of components for neutral beam injectors for fusion experiments at DIII-D.
DOE/Office of Science

Contact: John Greenwald
jgreenwa@pppl.gov
609-243-2672
DOE/Princeton Plasma Physics Laboratory

Public Release: 9-Aug-2017
Plasma Physics and Controlled Fusion
Updated computer code improves prediction of particle motion in plasma experiments
A computer code used by physicists around the world to analyze and predict tokamak experiments can now approximate the behavior of highly energetic atomic nuclei, or ions, in fusion plasmas more accurately than ever.
US Department of Energy

Contact: Raphael Rosen
rrosen@pppl.gov
609-243-3317
DOE/Princeton Plasma Physics Laboratory

Public Release: 24-Jul-2017
Nuclear Fusion
First basic physics simulation of impact of neutrals on turbulence
This article describes simulation of recycled neutral atoms on plasma turbulence in fusion experiments.
DOE/Office of Advanced Scientific Computing Research, DOEOffice of Fusion Energy Sciences

Contact: John Greenwald
jgreenwa@pppl.gov
609-243-2672
DOE/Princeton Plasma Physics Laboratory

Public Release: 14-Jul-2017
Physical Review Letters
Scientists create first laboratory generation of astrophysical shock waves
Feature describes first laboratory generation of an astrophysical shock wave.
US Department of Energy

Contact: John Greenwald
jgreenwa@pppl.gov
609-243-2672
DOE/Princeton Plasma Physics Laboratory

Public Release: 13-Jul-2017
Plasma Physics and Controlled Fusion
Machine learning technique offers insight into plasma behavior
A paper by graduate student Matthew Parsons describes the application of machine learning to avoiding plasma disruptions, which will be crucial to ensuring the longevity of future large tokamaks.
Fulbright US Student Program, US Department of Energy, DOE/Fusion Energy Sciences

Contact: Raphael Rosen
rrosen@pppl.gov
DOE/Princeton Plasma Physics Laboratory

Public Release: 5-Jul-2017
Physical Review Letters
PPPL researchers demonstrate first hot plasma edge in a fusion facility
Article describes first experimental finding of constant temperature in a fusion plasma.
DOE/Office of Science

Contact: John Greenwald
jgreenwa@pppl.gov
609-243-2672
DOE/Princeton Plasma Physics Laboratory

Public Release: 15-Jun-2017
US-China collaboration makes excellent start in optimizing lithium to control plasma
For fusion to generate substantial energy, the ultra-hot plasma that fuels fusion reactions must remain stable and kept from cooling. Researchers have recently shown lithium, a soft, silver-white metal, to be effective in both respects during path-setting US-Chinese experiments on the Experimental Advanced Superconducting Tokamak (EAST) in Hefei, China.
US Department of Energy, China's National Magnetic Fusion Science Program, China's National Nature Science Foundation, and China's A3 Foresight Program

Contact: Rajesh Maingi
rmaingi@pppl.gov
DOE/Princeton Plasma Physics Laboratory

Public Release: 19-May-2017
Fusion Engineering and Design
Physicists discover that lithium oxide on tokamak walls can improve plasma performance
A team of physicists has discovered that a coating of lithium oxide on the inside of fusion machines known as tokamaks absorbs as much deuterium as pure lithium does.
Department of Energy

Contact: Raphael Rosen
rrosen@pppl.gov
DOE/Princeton Plasma Physics Laboratory

Public Release: 18-May-2017
Physical Review Letters
Scientists perform first-principles simulation of transition of plasma edge to H-mode
PPPL physicists have simulated the spontaneous transition of turbulence at the edge of a fusion plasma to the high-confinement mode that sustains fusion reactions. The research was achieved with the extreme-scale plasma turbulence code XGC developed at PPPL in collaboration with a nationwide team.
US Department of Energy (Fusion Energy Sciences, Advanced Scientific Computing Research)

Contact: John Greenwald
jgreenwa@pppl.gov
DOE/Princeton Plasma Physics Laboratory

Public Release: 10-May-2017
Physics of Plasmas
New model of plasma stability could help researchers predict and avoid disruptions
PPPL physicists have helped develop a new computer model of plasma stability in doughnut-shaped fusion machines known as tokamaks. The new model incorporates recent findings gathered from related research efforts and simplifies the physics involved so computers can process the program more quickly. The model could help scientists predict when a plasma might become unstable and then avoid the underlying conditions.
DOE/Office of Science

Contact: Raphael Rosen
rrosen@pppl.gov
DOE/Princeton Plasma Physics Laboratory

Public Release: 6-Apr-2017
Applied Physics Letters
Scientists further understanding of a process that causes heat loss in fusion devices
In the past year, scientists at PPPL have made important advances in understanding secondary electron emission.
DOE/Office of Science, Air Force Office of Scientific Research, DOE/Office of Science Graduate Student Research Program

Contact: Raphael Rosen
rrosen@pppl.gov
DOE/Princeton Plasma Physics Laboratory

Public Release: 5-Apr-2017
Physical Review Letters
Simulations of DIII-D experiments shed light on mysterious plasma flows
Article describes how heating core of the plasma can create sheared flow that improves stability and performance of fusion devices.
DOE/Office of Science

Contact: John Greenwald
609-243-2672
DOE/Princeton Plasma Physics Laboratory

Public Release: 31-Mar-2017
Physical Review Letters
Discovery of a source of fast magnetic reconnection
Feature describes source of the acceleration of a common type of magnetic reconnection.
DOE/Office of Science

Contact: John Greenwald
jgreenwa@pppl.gov
609-243-2672
DOE/Princeton Plasma Physics Laboratory

Public Release: 20-Mar-2017
Physics of Plasmas
New feedback system could allow greater control over fusion plasma
A physicist has created a new system that will let scientists control the energy and rotation of plasma in real time in a doughnut-shaped machine known as a tokamak.
US Department of Energy

Contact: Raphael Rosen
rrosen@pppl.gov
DOE/Princeton Plasma Physics Laboratory

Showing releases 1-25 out of 38.

1 | 2 > >>

 

 

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