I-mode powers up on alcator C-mod tokamak

Thursday, November 10, 2011 - 17:31 in Physics & Chemistry

A key challenge in producing fusion energy is confining the plasma long enough for the ionized hydrogen to fuse and produce net power. Suppressing plasma turbulence is one approach to this, but the resulting increase in energy confinement is usually accompanied by undesirable increases in particle and impurity confinement, which can lead to plasma contamination and ash accumulation—and reduced power. At MIT's Alcator C-Mod tokamak reactor, scientists are investigating I-mode, an improved confinement regime, which may solve this problem.

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