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Fusion Science and Technology
Latest News
Securing the advanced reactor fleet
Physical protection accounts for a significant portion of a nuclear power plant’s operational costs. As the U.S. moves toward smaller and safer advanced reactors, similar protection strategies could prove cost prohibitive. For tomorrow’s small modular reactors and microreactors, security costs must remain appropriate to the size of the reactor for economical operation.
V. D. Shafranov, M. I. Mikhailov, A. A. Skovoroda
Fusion Science and Technology | Volume 35 | Number 1 | January 1999 | Pages 67-76
Invited Lectures | doi.org/10.13182/FST99-A11963828
Articles are hosted by Taylor and Francis Online.
The problems of the three-dimensional (3D) plasma confinement systems optimization based on choice of a proper topology of the module B lines on magnetic surface is considered. This approach developed in recent years is connected with the fact that in spite of the 3D structure of the confining magnetic field in the stellarator and mirror with quadrupole stabilizers, an essential properties of the equilibrium and the guiding center drift depend mainly on module B distribution on magnetic surfaces. Selecting the system with the “quasisymmetric” distribution of module B one could to avoid or to make weaker unfavourable effects of the 3-D systems: the island structure and large neoclassical transport. The theoretical base for this approach is discussed.