A modified Lawson criterion shows that driving micron-scale turbulence inside a fusion hot spot could enable ignition at lower temperature, provided the turbulence does not mix cold material inward.
Analytical models for the enhancement of fusion reactivity by turbulence
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abstract
The reactivity of fusion plasma depends not only on its local density and temperature but also, through a recently identified kinetic effect, on the relative velocities of nearby fluid elements. Turbulence on fine spatial scales therefore enhances fusion reactivity. The enhancement is quantified here for general subsonic turbulent flows. Leveraging this effect in the design of inertial confinement fusion (ICF) experiments could enable substantial energy savings.
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2025 1verdicts
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An ignition criterion for inertial fusion boosted by microturbulence
A modified Lawson criterion shows that driving micron-scale turbulence inside a fusion hot spot could enable ignition at lower temperature, provided the turbulence does not mix cold material inward.