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  • Technology | The many wonders of ITER diagnostics

    The eyes and ears of virtually all plant functions, ITER diagnostic sensors and accompanying systems will play an essential role at ITER. They will keep the rea [...]

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  • Outreach | Industry really can be "extraordinaire"

    'Great things are done by a series of small things brought together.' This quote, attributed to the Dutch painter Vincent Van Gogh, could have been the perfect [...]

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  • Tokamak Building | Civil works completed

    The olive tree that stood for a few days at the top of the Tokamak Building marked the completion of a five-year effort by Europe and its main contractor VFR to [...]

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  • Assembly Hall | Another massive handling tool

    Inside of the Assembly Hall, some of ITER's heaviest components will have to be raised ever so carefully from their horizontal delivery positions to vertical. T [...]

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  • Image of the week | Time to celebrate

    It is traditional, in the world of construction, to celebrate the completion of a house or building by placing a leafy branch on its roof or topmost beam. The p [...]

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Of Interest

See archived entries

Hot times for fusion plasmas

Fusion plasmas make the front cover of the latest issue of Physics Today (October 2015). (Click to view larger version...)
Fusion plasmas make the front cover of the latest issue of Physics Today (October 2015).
In the October issue of Physics Today, three US researchers
report on recent advances in the understanding of wave-particle physics in tokamaks.

In fusion plasmas, interactions between electromagnetic waves and the most energetic ions can perturb ion orbits enough to expel them from the confining magnetic field, resulting in loss of performance. A better understanding of energetic ion behavior in tokamaks is needed to predict and produce the operating parameters required for a fusion reactor.

Based on experiments and simulations of wave-induced ion transport, researchers David Pace (General Atomics), Bill Heidbrink (University of California, Irvine) and Michael Van Zeeland (General Atomics) have supplied new details on the process. Continued development of wave-particle physics will arm researchers with the ability to predict, and then avoid or mitigate, scenarios at ITER in which alpha particles are transported out of their confined orbits in the plasma.

Read the full article at AIP Scitation.
A pdf version of the article can also be downloaded from the General Atomics website.


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