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Unlike symmetrical devices, stellarators rely on complex, twisted magnetic coils to confine superheated plasma without internal electrical currents. Although these convoluted geometries require immense computational power to design, they offer continuous operation and inherent stability against abrupt plasma disruptions.
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Microscopic turbulence within burning plasma rapidly transports heat away from the core, preventing the sustained temperatures necessary for net energy gain. By simulating these chaotic fluctuations across microscopic scales, physicists can develop targeted magnetic configurations that suppress anomalous energy leakage.
The divertor components inside a reactor must endure extreme heat flux and relentless bombardment by high energy neutrons. Consequently, metallurgical engineers use tungsten tiles, which withstand exceptional thermal loads while minimising the contamination of the core plasma through erosion.
Recent advancements in rare earth barium copper oxide tapes permit the generation of much stronger magnetic fields at higher temperatures. Because magnetic pressure scales quadratically with field strength, these compact conductors allow engineers to design significantly smaller and cheaper experimental reactors.
Aneutronic fusion utilising proton and boron eleven fuel creates energetic alpha particles rather than damaging neutrons. Although initiating this reaction demands temperatures exceeding one billion degrees, it allows the direct conversion of charged particles into electricity without intermediate steam turbines.
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