Magnetic Confinement Fusion

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Science  28 Sep 1990:
Vol. 249, Issue 4976, pp. 1522-1527
DOI: 10.1126/science.249.4976.1522


Fusion plasmas with reactorlike temperatures have been confined in magnetic-field configurations of the tokamak type. The measured rate of heat leakage from these plasmas is sufficiently small to be compatible with the requirements of a full-sized fusion power reactor. Improvements in other aspects of reactor performance are still needed, however, and the high cost of reactor- development steps has become an obstacle on the path to practical fusion power.

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