The generation of shock waves by energetic gas cluster impact on a solid surface was studied by use of two-dimensional (2D) molecular dynamics. The collisions of Arn (n ∼ 200-350) clusters with the target of 40 000 atoms were modeled. The atomic scale shock waves arising from cluster impact have been obtained by calculating the pressure, temperature and mass-velocity of the target atoms. The asymptotic time dependence of distances travelled by a shock wave front is well described by a power law R ∼ tα, with a constant α = 0.6 for cluster energies between 17 and 85 eV per atom.
|Number of pages||7|
|Journal||Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms|
|Publication status||Published - May 1996|
ASJC Scopus subject areas
- Nuclear and High Energy Physics