TY - JOUR
T1 - A Cluster Dynamics Model for Accumulation of Helium in Tungsten under Helium Ions and Neutron Irradiation
AU - Y. G. Li, W. H. Zhou, R. H. Ning, L. F. Huang, Z. Zeng & X. Ju
JO - Communications in Computational Physics
VL - 5
SP - 1547
EP - 1568
PY - 2012
DA - 2012/11
SN - 11
DO - http://doi.org/10.4208/cicp.030311.090611a
UR - https://global-sci.org/intro/article_detail/cicp/7424.html
KW - 
AB - <p style="text-align: justify;">A cluster dynamics model based on rate theory has been developed to describe the accumulation and diffusion processes of helium in tungsten under helium
implantation alone or synergistic irradiation with neutron, by involving different types
of objects, adopting up-to-date parameters and complex reaction processes as well as
considering the diffusion process along with depth. The calculated results under different conditions are in good agreement with experiments much well. The model describes the behavior of helium in tungsten within 2D space of defect type/size and
depth on different ions incident conditions (energies and fluences) and material conditions (system temperature and existent sinks), by including the synergistic effect of
helium-neutron irradiations and the influence of inherent sinks (dislocation lines and
grain boundaries). The model, coded as IRadMat, would be universally applicable to
the evolution of defects for ions/neutron irradiated on plasma-facing materials.</p>