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

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.
Authors:
; ; ;  [1]
  1. Moscow State University, Skobeltsyn Institute of Nuclear Physics (Russian Federation)
Publication Date:
OSTI Identifier:
22472452
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Atomic Nuclei; Journal Volume: 78; Journal Issue: 1; Other Information: Copyright (c) 2015 Pleiades Publishing, Ltd.; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; COSMIC PROTONS; CROSS SECTIONS; E CODES; ELASTIC SCATTERING; ENERGY SPECTRA; INELASTIC SCATTERING; MASS DISTRIBUTION; MEV RANGE; NUCLEAR FRAGMENTATION; NUCLEAR REACTION YIELD; PROTON REACTIONS; T CODES; TUNGSTEN