Abstract
Molecular dynamics techniques have been used to simulate atom-atom collisional scattering of 0-5.5 eV/nucleon Ti atoms in bulk Ti. The recoiling atoms to be simulated were produced by the emission of MeV gamma -rays after the thermal neutron capture reaction 48Ti(n, gamma )49Ti. The information on the collisional scattering was deduced from Doppler broadened gamma -ray lineshapes, produced in the decay of excited bound states in recoiling 49Ti. The measured gamma -ray lineshapes were simulated by combining the molecular dynamics calculation for the atomic collisions with calculations using the Monte Carlo method for the experimental conditions and decays of excited nuclear states. The dependence of the simulated gamma -ray lineshapes on the interatomic potential is demonstrated.
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