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Contribution Contributed Oral

Budker INP - Conference Hall
GDT: resent results of studies in support of the ALIANCE project

Divertor for steady-state GDT

Speakers

  • Prof. Igor KOTELNIKOV

Primary authors

Co-authors

Content

An analysis is made of possibility of using a device topologically equivalent to a nonparaxial MHD stabilizer as a divertor for the projected FVNS source of fusion neutrons on the gas-dynamic trap, which should operate in a continuous mode. A side effect of adding a divertor to a linear trap is the expected improvement in plasma MHD stability, which was previously observed at TARA [Phys. Fluids 31 (1988) 2009] and HIEI [Fus. Tech. 39 (2001) 350] facilities. To assess the effect of MHD stabilization by a divertor, the article indicates a method for finding stability rings, and also calculates the degree of expansion of the plasma flux in the divertor. The analysis showed that a good divertor, which provides a high degree of expansion, cannot be a good MHD stabilizer, which provides a large margin of stability. The divertor configurations made up of two and three coils are studied, their advantages and disadvantages are described. The final part of the article presents the calculations of the magnetic field in an end cell with a superconducting divertor designed for the GDMT gas-dynamic multi-core trap project [Fus. Sci. Tech. 63 (2013) 46].