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MIT tokamak Alcator C exceeds Lawson criterion

FEB 01, 1984

DOI: 10.1063/1.2916078

In 1957 John Lawson at Harwell pointed out a crucial minimum requirement for the achievement of net power output from a deuterium–tritium plasma in any fusion device. No matter what the temperature, Lawson showed, a thermalized D–T plasma cannot put out more fusion power than the input power required to keep it hot unless nτ, the product of the ion density and the energy confinement time (often refered to as the confinement parameter or Lawson parameter), exceeds 6×1013seccm−3.

This Content Appeared In
pt-cover_1984_02.jpeg

Volume 37, Number 2

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