Latest Fusion reactors Stories

Control Of Widely Recognized Distortion May Allow Greater Output At Sandia's Z Machine
2014-01-10 09:33:28

DOE/Sandia National Laboratories A surprising effect created by a 19th century device called a Helmholz coil offers clues about how to achieve controlled nuclear fusion at Sandia National Laboratories' powerful Z machine. A Helmholz coil produces a magnetic field when electrified. In recent experiments, two Helmholz coils, installed to provide a secondary magnetic field to Z's huge one, unexpectedly altered and slowed the growth of the magneto-Rayleigh-Taylor instabilities, an...

New Insights Into A Fusion Plasma's Transport Barrier Promise To Boost Future Reactor Performance
2013-11-13 15:52:11

American Physical Society In a collaborative effort, researchers in the United States and the United Kingdom have developed a new technique that will help them optimize the transport barrier, or pedestal, in fusion plasmas, which will be key to increasing future fusion power performance. This work has been recognized with the 2013 APS John Dawson Award for Excellence in Plasma Physics Research. The core of fusion plasmas must reach temperatures over 100 million degrees to enable ample...

Rapid Plasma Rotation May Be Key To Softening The Blow Of Powerful Plasma Disruptions
2013-11-13 11:25:56

American Physical Society In the quest for fusion energy on earth, researchers use magnetic fields to insulate hot plasma from the walls of the chamber to maintain the reaction and prevent damage to interior surfaces. In the tokamak, a leading contender to achieve a sustained fusion burn, electrical currents flowing in the plasma inside the doughnut-shaped vacuum chamber can become unstable if the plasma current or pressure gets too high or the control system breaks, leading to a sudden...

Understanding Turbulence In Plasmas Leads To Potential Fusion Power Breakthrough
2013-04-29 19:13:22

Lee Rannals for redOrbit.com — Your Universe Online Researchers wrote in the journal Physics of Plasmas about experiments that helped reveal details of a cooling process that could potentially bring practical fusion closer. Fusion is the reaction that powers the sun, and a team at MIT´s Plasma Science and Fusion Center (PSFC) says they have taken steps that could potentially help develop fusion power. One reason self-sustaining fusion reactions are a difficult accomplishment...

Mug Handles May Help Hot Plasma Give Cheaper, Controllable Fusion Energy
2012-10-12 09:28:09

Researchers around the world are working on an efficient, reliable way to contain the plasma used in fusion reactors, potentially bringing down the cost of this promising but technically elusive energy source. A new finding from the University of Washington could help contain and stabilize the plasma using as little as 1 percent of the energy required by current methods. “All of a sudden the current energy goes from being almost too much to almost negligible,” said lead author...

Sandia Nuclear Fusion Concept Undergoes Dry-Run Testing
2012-09-18 10:11:04

April Flowers for redOrbit.com - Your Universe Online Researchers at the Sandia National Laboratories have completed successful preliminary tests on magnetically imploded tubes called liners, which are intended to help produce controlled nuclear fusion at scientific "break-even" energies or better within the next few years. The results of this research will be published in Physical Review Letters (PRL). Scientific break-even is one of the major performance measurements in fusion energy...

2012-08-21 00:53:40

Researchers at a recent worldwide conference on fusion power have confirmed the surprising accuracy of a new model for predicting the size of a key barrier to fusion that a top scientist at the U.S. Department of Energy´s Princeton Plasma Physics Laboratory (PPPL) has developed. The model could serve as a starting point for overcoming the barrier. “This allows you to depict the size of the challenge so you can think through what needs to be done to overcome it,” said...

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