SMRTR Science & EngineeringMay 28, 2025Interesting Engineering

Nuclear fusion breakthrough: World’s largest stellarator delivers first helium-3

SMRTR summary

Scientists at the Wendelstein 7-X fusion reactor have successfully generated high-energy helium-3 ions using ion cyclotron resonance heating. This breakthrough simulates conditions needed for sustaining fusion reactions and could help develop fusion power plants. The technique may also explain helium-3-rich clouds in the sun's atmosphere, linking fusion research to solar physics.

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