aShanghai Institute of Applied Physics, Chinese Academy of Sciences, P.O. Box 800-204, Shanghai 201800, China
bInternational Centre for Material Physics, Chinese Academy of Sciences, Shenyang 110016, China
Abstract:
The Monte Carlo simulation program has been used to study low energy channeling in the single-wall nanotube and its rope, in comparisons between beam sizes and between light (He) and heavy (Ar) ions. The simulation mainly shows that the critical angle ΨC = 48 E?1/2 (E is incident energy) for the He (light) ion channeling but ΨC = 18 E?1/2 for the Ar (heavy) ion channeling, in the (17,0) zigzag single-wall nanotube. Thus, it might be found in the simulation that ΨC strongly depends on the ion mass.