Study of Interatomic Potentials in ZnS - Crystal-GRID Experiments versus ab initio Calculations

Koch, Timo; Heinig, Karl-Heinz; Jentschel, Michael; Börner, H. G.

Study of Interatomic Potentials in ZnS - Crystal-GRID Experiments versus ab initio Calculations

Koch, T.; Heinig, K.-H.; Jentschel, M.; Börner, H. G.

Crystal-GRID measurements have been performed with ZnS single crystals. For the first time, an asymmetric Crystal-GRID line shape could be observed. The preliminary data evaluation indicates that the reported lifetime of the 3221 keV level in 33 is too short. A value of about 60 fs has been found. Due to this ``long'' lifetime the line shape is much less structured than calculated with the reported lifetime.

Keywords: atomic collisions; Crystal-GRID; gamma ray spectroscopy; interatomic potentials; Molecular Dynamics simulations; nuclear lifetimes; ZnS

Lecture (Conference)
Applications of high-precision gamma-spectroscopy, Notre Dame, USA, July 1-3, 1998
J. Res. Natl. Inst. Stand. Technol. 105 (2000) 81-87

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