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Conceptual Neutronics Study of a Hybrid Fusion Neutron Source FNS-C with Aqueous Blanket by A. V. Zhirkin; V. P. Budaev; A. V. Dedov; A. A. Glebova; A. O. Goltsev; A. T. Komov; B. V. Kuteev is a Physics and Astronomy article available to read on EtoBox.

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The modern challenges of nuclear energy are the replenishment of dwindling reserves of nuclear fuel and the development of a closed nuclear fuel cycle while complying with strict radiation safety requirements. A fusion neutron source has unique capabilities to solve these problems. The preliminary results of a neutronic analysis of the FNS-C fusion-fission hybrid neutron source with a thorium-uranium aqueous blanket by the Monte Carlo method computer simulation, using the MCNP-4 code with the ENDF/ B-VII cross-section library, gives satisfactory results for the study of the possibility of creating a compact source of fusion neutrons based on a small spherical tokamak for commercial use.The obtained results show that the FNS-C hybrid blanket generates enough tritium to fully ensure the uninterrupted operation of the FNS-C throughout the year. The reproduction coefficient of 233 U is 1.027 at a consumption of 1304 kg/year of the fissile material in the aqueous blanket containing 232 Th enriched to 1.47% 233 U. The FNS-C is operated with an effective neutron multiplication factor k eff ~ 0.99 with reactivity ρ = -0.006249 in the presence of delayed neutrons, which corresponds to the s

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Author

A. V. Zhirkin; V. P. Budaev; A. V. Dedov; A. A. Glebova; A. O. Goltsev; A. T. Komov; B. V. Kuteev

Publisher

Informa UK Limited

Published

2023

Language

EN

Field

Physics and Astronomy (Physical Sciences)