Accumulation of helium in tungsten irradiated by helium and neutrons

Cluster dynamics modeling of accumulation and diffusion of helium in neutron irradiated tungsten

“…Related theoretical works have also been performed based on the cluster dynamics model [13,14] and kinetic Monte Carlo (KMC) model [15,16] recently. Watanabe et al [13] studied the formation of interstitial loops in W under He ion irradiation by using rate theory modeling and compared the results with experiment.…”

“…Watanabe et al [13] studied the formation of interstitial loops in W under He ion irradiation by using rate theory modeling and compared the results with experiment. Xu et al [14] have investigated the effects of He on the microstructure evolution in W during He and neutron irradiations based on a simple model using rate theory. However, more reliable parameters, especially the characteristic energies, or more reasonable reaction mechanisms of defects should be still addressed to obtain credible results.…”

Interaction of tritium plasma and defects in tungsten irradiated with neutrons

“…Tritium, interstitials, vacancies and their clusters with tritium could migrate freely in the matrix, and their concentrations at both surfaces are zero at all times. The time evolution of the concentration of point defects, defect clusters and tritium were calculated using dynamic rate theory [6][7][8] with the following assumptions:…”

Rate theory modeling of dislocation loops in RAFM steel under helium ion irradiation and comparison with experiments

“…Therefore modeling plays an important role in theoretical analysis due to its convenience and effectiveness for solving these problems. The rate theory is one of the fruitful modeling methods capable of treating the long term kinetic evolution of microstructures in metals under irradiation [5][6][7]. To build up the rate theory model, it is essential to understand the detailed evolution of defects.…”