Numerical experiments on the total D-D fusion neutron yield versus deuterium pressure for different energy plasma focus devices using the Lee model code

Wahbe, S. and Abou-Ali, Y. and Akel, M. and Lee, Sing and Marciniak, L. (2023) Numerical experiments on the total D-D fusion neutron yield versus deuterium pressure for different energy plasma focus devices using the Lee model code. Plasma Physics and Controlled Fusion, 65 (5). ISSN 0741-3335, DOI https://doi.org/10.1088/1361-6587/acc610.

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Abstract

Numerical experiments using the Lee model code were carried out to compute the total D-D fusion neutron yield versus initial deuterium pressure for nine different plasma focus devices PF50, AACS, PF400J, PF2.2, UNU-ICTP, PFZ200, PF24, PF78, Poseidon]. The computed data were compared with the published experimental results. In addition, the maximum discharge current, the pinch current and the pinch ion number density, as a function of initial deuterium pressure, were discussed, as well as their effect on the neutron yield. The optimum pressures that correspond to the maximum neutron yield Y-n were obtained for all considered devices, with reference to the specific plasma focus properties. The scaling laws for the D-D fusion neutron production, in terms of storage energies E-0 and pinch current I-pinch, were derived. The scaling of Yn with Ipinch and E-0 over the whole range of investigated energies up to 300 kJ has been obtained as follows: Y-n similar to I-pinch(5), Y-n similar to E-0(1.95). These laws are important in the planning and design of a plasma focus as a potentially powerful pulse neutron source.

Item Type: Article
Funders: Damascus University, Ministry of Higher Education of the Syrian Arab Republic
Uncontrolled Keywords: dense plasma focus; Lee code; neutron yield; D-D fusion; thermonuclear; deuterium gas
Subjects: Q Science > QC Physics
Depositing User: Ms Zaharah Ramly
Date Deposited: 11 Jun 2024 01:50
Last Modified: 11 Jun 2024 01:50
URI: http://eprints.um.edu.my/id/eprint/38259

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