Abstract
Tungsten fragmentation arising in nuclear reactions induced by cosmic-ray protons in space-vehicle electronics is considered. In modern technologies of integrated circuits featuring a three-dimensional layered architecture, tungsten is frequently used as a material for interlayer conducting connections. Within the preequilibrium model, tungsten-fragmentation features, including the cross sections for the elastic and inelastic scattering of protons of energy between 30 and 240 MeV; the yields of isotopes and isobars; their energy, charge, and mass distributions; and recoil energy spectra, are calculated on the basis of the TALYS and EMPIRE-II-19 codes. It is shown that tungsten fragmentation affects substantially forecasts of failures of space-vehicle electronics.
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Original Russian Text © N.G. Chechenin, T.V. Chuvilskaya, A.A. Shirokova, A.G. Kadmenskii, 2015, published in Yadernaya Fizika, 2015, Vol. 78, Nos. 1–2, pp. 164–171.
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Chechenin, N.G., Chuvilskaya, T.V., Shirokova, A.A. et al. Tungsten fragmentation in nuclear reactions induced by high-energy cosmic-ray protons. Phys. Atom. Nuclei 78, 159–166 (2015). https://doi.org/10.1134/S1063778814120060
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DOI: https://doi.org/10.1134/S1063778814120060