Energy deposition in carbon by MeV/atom carbon cluster ions

Kaneko, Toshiaki*; Saito, Yuichi; Chiba, Atsuya; Narumi, Kazumasa

The energy loss of each constituent ion in a cluster is evaluated using molecular dynamics method by solving the newtonian equation of motion. Here we assume the cluster structure is a linear-chain so that the incident condition is characterized only by the polar angle between the cluster axis and the direction of incidence. As a result, the calculated energy-loss values are in agreement with the trend of existing experimental data. This report displays that the present theoretical treatment can also derive both the negative and the positive cluster effect in the energy-loss process. In this respect, the present treatment will be able to predict the energy-loss and the average charge more widely.