Blog Archives

Ronald Davidson, former director of the Princeton Plasma Physics Laboratory, pioneering physicist, author, and professor passes away

Ronald C. Davidson, a pioneering plasma physicist for 50 years who directed the U.S. Department of Energy’s Princeton Plasma Physics Laboratory (PPPL) during a crucial period of its history and was a founding director of the Plasma Fusion Center at … Continue reading

25. May 2016 by Christopher Cane
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Energy Secretary Moniz Launches the Nation’s Newest Fusion Experiment at PPPL

U.S. Department of Energy Secretary Ernest Moniz dedicated the most powerful spherical torus fusion facility in the world on Friday, May 20, 2016. The $94-million upgrade to the National Spherical Torus Experiment (NSTX-U), funded by the DOE Office of Science, … Continue reading

23. May 2016 by Christopher Cane
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A major upgrade of the Lithium Tokamak Experiment at PPPL will explore liquid lithium as a first wall for hot plasmas

A promising experiment that encloses hot, magnetically confined plasma in a full wall of liquid lithium is undergoing a $2 million upgrade at the U.S. Department of Energy’s (DOE) Princeton Plasma Physics Laboratory (PPPL). Engineers are installing a powerful neutral … Continue reading

11. May 2016 by Christopher Cane
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Scientists challenge conventional wisdom to improve predictions of the bootstrap current at the edge of fusion plasmas

Researchers at the U.S. Department of Energy’s (DOE) Princeton Plasma Physics Laboratory (PPPL) have challenged understanding of a key element in fusion plasmas. At issue has been an accurate prediction of the size of the “bootstrap current” — a self-generating … Continue reading

04. May 2016 by Christopher Cane
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Stewart Prager, PPPL Director, Testifies Before U.S. House Subcommittee on Energy

Written Testimony of Stewart Prager, Director, Princeton Plasma Physics Laboratory, Professor of Astrophysical Sciences, Princeton University Delivered to the Committee on Science, Space and Technology Subcommittee on Energy For the hearing on April 20, 2016 Read more

25. April 2016 by Christopher Cane
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Princeton graduate student Imène Goumiri creates computer program that helps stabilize fusion plasmas

Imène Goumiri, a Princeton University graduate student, has worked with physicists at the U.S. Department of Energy’s (DOE) Princeton Plasma Physics Laboratory (PPPL) to simulate a method for limiting instabilities that reduce the performance of fusion plasmas. The more instabilities … Continue reading

21. April 2016 by Christopher Cane
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PPPL scientists help test innovative device to improve efficiency of tokamaks

Scientists at the U.S. Department of Energy’s Princeton Plasma Physics Laboratory (PPPL) have helped design and test a component that could improve the performance of doughnut-shaped fusion facilities known as tokamaks. Called a “liquid lithium limiter,” the device has circulated … Continue reading

12. April 2016 by Christopher Cane
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Physicist Tyler Abrams models lithium erosion in tokamaks

The world of fusion energy is a world of extremes. For instance, the center of the ultrahot plasma contained within the walls of doughnut-shaped fusion machines known as tokamaks can reach temperatures well above the 15 million degrees Celsius core … Continue reading

05. April 2016 by Christopher Cane
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PPPL engineers design and build state-of-the-art controller for AC to DC converter that manages plasma in upgraded fusion machine

The electric current that powers fusion experiments requires superb control. Without it, the magnetic coils the current drives cannot contain and shape the plasma that fuels experiments in doughnut-shaped tokamaks correctly. Read more

10. March 2016 by Christopher Cane
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Plasma 101

10 Facts You Should Know About Plasma It’s the fourth state of matter: Solid, liquid, gas, and plasma. Plasma is a super-heated gas, so hot that its electrons get out of the atom’s orbit and roam free. A gas thus … Continue reading

01. March 2016 by Christopher Cane
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