Stellarator

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Summary

A stellarator is a fusion power device that confines plasma using external magnets.

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institutional home of early stellarator research
The research facility where the initial stellarator experiments, such as the Model A and Model C, were conducted under the Project Matterhorn program.
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most advanced operational stellarator
A large-scale experimental stellarator located in Germany that demonstrates the viability of the optimized magnetic field configuration for long-pulse plasma confinement.
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inventor of the stellarator concept
An American theoretical physicist who conceived the stellarator design in 1951 while working at Princeton University, aiming to solve the problem of plasma confinement.
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medium confined by the device
The stellarator is designed specifically to heat and confine plasma to temperatures sufficient for nuclear fusion to occur.
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alternative magnetic confinement configuration
The tokamak is the primary competitor to the stellarator, relying on a large toroidal current to create the necessary magnetic twist, whereas the stellarator does not.
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primary category of fusion device
The stellarator is a specific implementation of magnetic confinement fusion, using external coils to create the magnetic bottle rather than relying on internal plasma currents.
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optimization technique for magnetic fields
A design principle used in modern stellarators to make the magnetic field appear symmetric to particles, significantly reducing particle drift and improving confinement.
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essential component for magnetic field generation
Modern stellarators require complex, high-field superconducting magnets to maintain the precise magnetic geometry needed for long-term plasma confinement.
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primary mechanism for particle loss
This theory describes how particles drift out of the magnetic confinement in a stellarator due to the complex, non-axisymmetric shape of the magnetic field.
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critical operational requirement
Achieving plasma stability is the central challenge of stellarator design, as the complex magnetic geometry must prevent instabilities that lead to energy loss.
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Facts