Which outcome prevents sustained fusion within a tokamak reactor?

💡 Explanation

Sustained fusion requires the triple product of density, temperature, and confinement time be high; therefore if plasma escapes too quickly, the Lawson criterion isn't met because the ions cool down, meaning fusion stops rather than continuing reaction.

• Which outcome will soon limit sustained Deuterium-Tritium (D-T) fusion within present-generation Tokamak reactors?
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