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PPPL physicists use computers to uncover mechanism that stabilizes plasma within tokamaks

DOE/Princeton Plasma Physics Laboratory
Peer-Reviewed Publication

A team of physicists led by Stephen Jardin of the US Department of Energy's Princeton Plasma Physics Laboratory has discovered a mechanism that prevents the electrical current flowing through fusion plasma from repeatedly peaking and crashing. This behavior is known as a 'sawtooth cycle' and can cause instabilities within the plasma's core. The results have been published online in Physical Review Letters. The research was supported by the DOE Office of Science.

Journal: Physical Review Letters
Funder: US Department of Energy's Office of Science

PPPL to design a high-resolution diagnostic system for the National Ignition Facility

DOE/Princeton Plasma Physics Laboratory

Two US Department of Energy (DOE) laboratories working on very different types of fusion experiments have begun a novel collaboration. Under the arrangement, the DOE's Princeton Plasma Physics Laboratory (PPPL) will design a diagnostic system to provide high-resolution analysis of research on the National Ignition Facility (NIF) at Lawrence Livermore National Laboratory (LLNL). This work is supported by the DOE Office of Science and LLNL.

PPPL physicists find clue to formation of magnetic fields around stars and galaxies

DOE/Princeton Plasma Physics Laboratory
Peer-Reviewed Publication

An enduring astronomical mystery is how stars and galaxies acquire their magnetic fields. Physicists Jonathan Squire and Amitava Bhattacharjee at the US Department of Energy's Princeton Plasma Physics Laboratory have found a clue to the answer in the collective behavior of small magnetic disturbances.

Journal: Physical Review Letters
Funder: DOE/US Department of Energy

Scientists propose an explanation for puzzling electron heat loss in fusion plasmas

DOE/Princeton Plasma Physics Laboratory
Peer-Reviewed Publication

Scientist Elena Belova of the US Department of Energy's Princeton Plasma Physics Laboratory and a team of collaborators have proposed an explanation for why the hot plasma within fusion facilities called tokamaks sometimes fails to reach the required temperature, even as researchers pump beams of fast-moving neutral atoms into the plasma in an effort to make it hotter.

Journal: Physical Review Letters
Funder: DOE/US Department of Energy

PPPL Engineer Chuck Kessel wins 2015 Fusion Technology Award

DOE/Princeton Plasma Physics Laboratory
Grant and Award Announcement

PPPL Engineer Chuck Kessel wins the 2015 Fusion Technology Award.

Scientists propose new model of mysterious barrier to fusion known as the 'density limit'

DOE/Princeton Plasma Physics Laboratory
Peer-Reviewed Publication

PPPL researchers have developed a detailed model of the source of a puzzling limitation on fusion reactions.

Journal: Physics of Plasmas
Funder: DOE/US Department of Energy

X marks the spot: Researchers confirm novel method for controlling plasma rotation

DOE/Princeton Plasma Physics Laboratory
Peer-Reviewed Publication

Timothy Stoltzfus-Dueck, a physicist at the US Department of Energy's Princeton Plasma Physics Laboratory, has demonstrated a novel method that scientists can use to manipulate the intrinsic - or self-generated - rotation of hot, charged plasma gas within fusion facilities called tokamaks.

Journal: Physical Review Letters
Funder: The US Department of Energy's FES division

Researchers correlate rheumatoid arthritis and giant cell arteritis with solar cycles

DOE/Princeton Plasma Physics Laboratory
Peer-Reviewed Publication

A rare collaboration of physicists and medical researchers finds a correlation between rheumatoid arthritis and giant cell arteritis and solar cycles.

Journal: BMJ Open
Funder: DOE/US Department of Energy, NASA, National Science Foundation, National Institutes of Health

Giant structures called plasmoids could simplify the design of future tokamaks

DOE/Princeton Plasma Physics Laboratory
Peer-Reviewed Publication

Researchers at the US Department of Energy's Princeton Plasma Physics Laboratory have for the first time simulated the formation of structures called 'plasmoids' during Coaxial Helicity Injection, a process that could simplify the design of fusion facilities known as tokamaks.

Journal: Physical Review Letters
Funder: DOE/US Department of Energy

Tiny grains of lithium dramatically improve performance of fusion plasma

DOE/Princeton Plasma Physics Laboratory
Peer-Reviewed Publication

An injection of small amounts of lithium produces a surprisingly large improvement in fusion plasma.

Journal: Nuclear Fusion
Funder: DOE/US Department of Energy

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