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DD reaction enhancement and X-ray generation in a high-current pulsed glow discharge in deuterium with titanium cathode at 0.8–2.45 kV

  • Statistical, Nonlinear, and Soft Matter Physics
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Abstract

The DD reaction yield (3-MeV protons) and the soft X-ray emission from a titanium (Ti) cathode surface in a periodic pulsed glow discharge in deuterium were studied at a discharge voltage of 0.8–2.45 kV and a discharge current density of 300–600 mA/cm2. The electron screening potential U e = 610 ± 150 eV was estimated in the range of deuteron energies 0.8 keV < E d < 2.45 keV from an analysis of the DD reaction yield as a function of the accelerating voltage. The obtained data show evidence for a significant enhancement of the DD reaction yield in Ti in comparison to both theoretical estimates (based on the extrapolation of the known DD reaction cross section for E d ≥ 5 keV to low deuteron energies in the Bosch-Halle approximation) and the results of experiments using accelerators at the deuteron energies E lab ≥ 2.5 keV and current densities 50–500 μ A/cm2. Intense emission of soft X-ray quanta (1013–1014 s−1 cm−2) was observed at an average energy of 1.2–1.5 keV. The X-ray emission intensity and the DD reaction yield enhancement strongly depend on the rate of deuterium diffusion in a thin subsurface layer of Ti cathode.

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Translated from Zhurnal Éksperimental’no\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l} \) i Teoretichesko\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l} \) Fiziki, Vol. 127, No. 6, 2005, pp. 1334–1349.

Original Russian Text Copyright © 2005 by Lipson, Rusetski\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l} \), Karabut, Miley.

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Lipson, A.G., Rusetskii, A.S., Karabut, A.B. et al. DD reaction enhancement and X-ray generation in a high-current pulsed glow discharge in deuterium with titanium cathode at 0.8–2.45 kV. J. Exp. Theor. Phys. 100, 1175–1187 (2005). https://doi.org/10.1134/1.1995801

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  • DOI: https://doi.org/10.1134/1.1995801

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