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Magnetic confinement fusion.

H P Furth

    Science (New York, N.Y.)
    |September 28, 1990
    PubMed
    Summary
    This summary is machine-generated.

    High-temperature fusion plasmas confined in tokamak magnetic fields show minimal heat loss, meeting key power reactor needs. Further improvements are necessary for practical fusion power due to development costs.

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    Area of Science:

    • Nuclear Fusion
    • Plasma Physics
    • Magnetic Confinement Fusion

    Background:

    • Tokamak devices are central to magnetic confinement fusion research.
    • Achieving and maintaining reactor-like plasma temperatures is a critical challenge.
    • Understanding heat loss mechanisms is essential for fusion reactor viability.

    Purpose of the Study:

    • To assess the confinement of high-temperature fusion plasmas in tokamak configurations.
    • To measure the rate of heat leakage from these plasmas.
    • To evaluate the compatibility of current performance with fusion power reactor requirements.

    Main Methods:

    • Utilizing magnetic-field configurations of the tokamak type.
    • Confining plasmas at temperatures relevant to nuclear fusion reactors.

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  • Measuring plasma heat leakage rates.

    • Main Results:

    • Fusion plasmas at reactor-like temperatures were successfully confined.
    • Measured heat leakage rates were found to be acceptably low for fusion power applications.
    • The confinement performance indicates potential feasibility for future fusion reactors.

    Conclusions:

    • Tokamak magnetic confinement shows promise for practical fusion power.
    • While heat leakage is manageable, other performance aspects require enhancement.
    • High development costs remain a significant barrier to commercial fusion energy.