Physics of Atomic Nuclei

, Volume 78, Issue 1, pp 159–166 | Cite as

Tungsten fragmentation in nuclear reactions induced by high-energy cosmic-ray protons

  • N. G. Chechenin
  • T. V. Chuvilskaya
  • A. A. Shirokova
  • A. G. Kadmenskii
Nuclei Theory

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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Copyright information

© Pleiades Publishing, Ltd. 2015

Authors and Affiliations

  • N. G. Chechenin
    • 1
  • T. V. Chuvilskaya
    • 1
  • A. A. Shirokova
    • 1
  • A. G. Kadmenskii
    • 1
  1. 1.Skobeltsyn Institute of Nuclear PhysicsMoscow State UniversityMoscowRussia

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