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Plasma Physics news

How do impurities move in tungsten?

One part of the vacuum vessel (the plasma facing material) of the fusion experimental device and future fusion reactor comes into contact with plasma. When the plasma ions enter into the material, those particles become a ...

dateJun 30, 2017 in Plasma Physics
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Table top plasma gets wind of solar turbulence

Scientists from India and Portugal recreated solar turbulence on a tabletop using a high intensity ultrashort laser pulse to excite a hot, dense plasma and followed the evolution of the giant magnetic field generated by the ...

dateJun 30, 2017 in Plasma Physics
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Fields and flows fire up cosmic accelerators

Every day, with little notice, the Earth is bombarded by energetic particles that shower its inhabitants in an invisible dusting of radiation, observed only by the random detector, or astronomer, or physicist duly noting ...

dateMay 16, 2017 in Plasma Physics
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Fast electrons and the seeds of disruption

Measuring small fast electron populations hidden in a sea of colder "thermal" electrons in tokamak plasmas is very challenging. Why? The challenge comes from the fast electron signal being overwhelmed by thermal electron ...

dateApr 28, 2017 in Plasma Physics
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NASA observations reshape basic plasma wave physics

When NASA's Magnetospheric Multiscale—or MMS—mission was launched, the scientists knew it would answer questions fundamental to the nature of our universe—and MMS hasn't disappointed. A new finding, presented in a paper ...

Reading between the lines of highly turbulent plasmas

Plasma, the ionised state of matter found in stars, is still not fully understood, largely due to its instability. Astrophysicists have long sought to develop models that can account for the turbulent motions inside plasma, ...

New path suggested for nuclear fusion

Controlled nuclear fusion has been a holy grail for physicists who seek an endless supply of clean energy. Scientists at Rice University, the University of Illinois at Urbana-Champaign and the University of Chile offered ...

Diagnostics for super-hot plasmas in fusion reactors

In the sun and other fusion plasmas, atoms of hydrogen and its isotopes are the fuel. Plasmas are gases that are so hot that electrons are knocked free of the atom, making the atoms electrically charged ions. The un-ionized ...

Scientist uncovers physics behind plasma-etching process

Physicist Igor Kaganovich at the Department of Energy's (DOE) Princeton Plasma Physics Laboratory (PPPL) and collaborators have uncovered some of the physics that make possible the etching of silicon computer chips, which ...

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Vortex photons from electrons in circular motion
New model for the origin of grid cells

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