Study of Interatomic Potentials in ZnS-Crystal-GRID Experiments Versus Ab Initio Calculations

T Koch; K H Heinig; M Jentschel; H G Börner

doi:10.6028/jres.105.010

Study of Interatomic Potentials in ZnS-Crystal-GRID Experiments Versus Ab Initio Calculations

J Res Natl Inst Stand Technol. 2000 Feb 1;105(1):81-7. doi: 10.6028/jres.105.010. Print 2000 Jan-Feb.

Authors

T Koch¹, K H Heinig¹, M Jentschel², H G Börner²

Affiliations

¹ Forschungszentrum Rossendorf, D-01314 Dresden, Germany.
² Institut Laue-Langevin, F-38000 Grenoble, France.

Abstract

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)S 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: Crystal-GRID; Molecular Dynamics simulations; ZnS; atomic collisions; gamma ray spectroscopy; inter-atomic potentials; nuclear lifetimes.