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Fusion energy: Progress, partnerships, and the path to deployment
Over the past decade, fusion energy has moved decisively from scientific aspiration toward a credible pathway to a new energy technology. Thanks to long-term federal support, we have significantly advanced our fundamental understanding of plasma physics—the behavior of the superheated gases at the heart of fusion devices. This knowledge will enable the creation and control of fusion fuel under conditions required for future power plants. Our progress is exemplified by breakthroughs at the National Ignition Facility and the Joint European Torus.
Osami Okada
Fusion Science and Technology | Volume 33 | Number 2 | March 1998 | Pages 130-135
Technical Paper | doi.org/10.13182/FST98-A23
Articles are hosted by Taylor and Francis Online.
A new type of divertor, a dipole divertor, is described. The dipole divertor is composed of a line dipole and is characterized by a simple configuration and the realization of a double-null separatrix with a small distortion on the equilibrium magnetic surface shape. Various configurations, including a conventional divertor, can also be realized with the basic two current hoops by changing current direction and magnitude. Higher-order multipole divertors such as the quadrupole divertor are also formed by four or more coils. A divertor magnetic field can be further localized in the higher-order multipoles. A possible stabilizing effect through curvature of the field line is discussed.