Neutron Yield Enhancement Through Gas Admixture and Cathode Radius Variation in a Plasma Focus Device
Abstrak
This study investigates the complex relationship between different cathode radii (b) and neutron yield ( $Y_{n}$ ), for the 2.73-kJ United Nations University/International Centre for Theoretical Physics Plasma Fusion Facility (UNU/ICTP PFF) plasma focus (PF) device when gas admixtures are introduced. The Lee model code is applied to characterize the UNU/ICTP PFF and for optimizing deuterium and argon (D:Ar) neutron production. The latest codes revealed how varying cathode radii and gas admixtures affect $Y_{n}$ and plasma dynamics. The maximum computed $Y_{n}$ generated per shot is $2.42\times 10^{7}$ n with beam energy of 80.7 kJ at a gas admixture weight ratio of ca. 19% and the pure D counterpart produced $9.57\times 10^{6}$ n with a beam energy of 68.97 kJ, both corresponding to 2.0-cm cathode radii. This shows a significant increase of ca. 153%. The study revealed that $Y_{\mathrm {th}}$ made a negligible contribution to the total $Y_{n}$ . The pinch lifetime increases with increasing proportion of Ar gas. As the Ar weight ratio increases, the overall mass of the plasma increases, due to heavier Ar atoms.
Penulis (6)
S. L. Yap
L. H. Muhammad
H. Tan
L. K. Lim
S. Lee
H. Wante
Akses Cepat
- Tahun Terbit
- 2025
- Bahasa
- en
- Sumber Database
- Semantic Scholar
- DOI
- 10.1109/TPS.2025.3565331
- Akses
- Open Access ✓