Abstract: It studies the trapping process of hyperthermal particles impacted on metal substrate by molecular dynamics simulations.Results show that,for normal incidence,the trapping probability decreases with increasing of the incident energy,while for 45° incidence,the trapping probability displays a non-monotonic behavior as observed in the recent experiment.The dependence of the trapping probability on the incident angle has also been investigated.

Key words: trapping probability, molecular dynamics