Computational Estimate of the DT-to-DD Neutron Yield Ratio for Plasma Focus Chambers

V. V. Gaganov; Гаганов В. В.; S. F. Garanin; Гаранин С. Ф.; V. Yu. Dolinskii; Долинский В. Ю.

doi:10.31857/S0367292123600012

Computational Estimate of the DT-to-DD Neutron Yield Ratio for Plasma Focus Chambers

Autores: Gaganov V.V.¹, Garanin S.F.¹, Dolinskii V.Y.¹
Afiliações:
1. Russian Federal Nuclear Center—All-Russian Research Institute of Experimental Physics (RFNC-VNIIEF)
Edição: Volume 49, Nº 4 (2023)
Páginas: 332-341
Seção: PLASMA DYNAMICS
URL: https://kazanmedjournal.ru/0367-2921/article/view/668561
DOI: https://doi.org/10.31857/S0367292123600012
EDN: https://elibrary.ru/FKUOKK
ID: 668561

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Resumo

The paper presents a computational estimate of the DT-to-DD neutron yield ratio for a spherical plasma-focus chamber PF9. The computations were carried out by the MHD modelling using the beam–target mechanism for neutron production. The charging voltage of the capacitor bank was varied in the range from 15 to 25 kV, and the initial pressure of the working gas was varied in the range from 4 to 30 Torr. The computations showed that the ratio of the DT and DD neutron yields varies in a wide range from 2 to 120, while the ratio of the DT and DD reaction cross sections for the typical ion energies in the beam varies in the range from 95 to 122. An analysis of the computational results showed that the difference in the estimates of the neutron yield is due to the features in the ion energy distributions.

Palavras-chave

plasma focus, neutron yield, discharge chamber, magnetohydrodynamics

Bibliografia

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