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IAEA’s Grossi joins seawater sampling at Fukushima Daiichi
International cooperation in the monitoring of radiation levels in seawater near the disabled Fukushima Daiichi nuclear power plant continues. Scientists from China, South Korea, and Switzerland were recently joined by International Atomic Energy Agency Director General Rafael Mariano Grossi as they collected seawater samples under the “additional measures” framework, which was adapted in 2024 to increase the participation of other countries and enhance the transparency of the IAEA-led analyses.
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.