Observatorio de I+D+i UPM

Memorias de investigación
Research Publications in journals:
Molecular dynamics study of structure transformation and H effects in irradiated silica
Year:2009
Research Areas
  • Naval engineering
Information
Abstract
Fused silica is a key component in a number of diagnostics for the Safety and Control Systems of the ITER machine as well as in the final focusing optics of lasers for inertial fusion and it will be exposed to high radiation fields (neutron and gamma) in both environments. Silica properties of interest are closely related to the presence of defects and its changing structure. On the other hand, some experimental results show that radiation damage depends on its hydrogen content. In this work we present molecular dynamics (MD) simulations to study the effects of displacement cascades on the ring size distribution and on the presence of the hydrogen atoms. Changes in the ring size distribution and variation of the local relative densities have been observed to be a function of the primary knock-on atom energy. And on the other hand, the effects of the hydrogen atoms in the evolution of numbers of defects have been determined.
International
Si
JCR
No
Title
Journal of Nuclear Materials
ISBN
0022-3115
Impact factor JCR
0
Impact info
Volume
386
Journal number
0
From page
75
To page
78
Month
ENERO
Ranking
Participants
  • Autor: A. IBARRA (CIEMAT)
  • Autor: J. MOLLA (CIEMAT)
  • Autor: Jose Manuel Perlado Martin (UPM)
  • Autor: M.J. CATURLA (UNIV. ALICANTE)
  • Autor: F. MOTA (CIEMAT)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Fusión Nuclear Inercial y Tecnología de fusión
  • Centro o Instituto I+D+i: Instituto de Fusión Nuclear
  • Departamento: Ingeniería Nuclear
S2i 2021 Observatorio de investigación @ UPM con la colaboración del Consejo Social UPM
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