Crystal-GRID measurements have been performed with ZnS single crystals. For
the first time, an asymmetric Crystal-GRID line shape could be observed. T
he preliminary data evaluation indicates that the reported lifetime of the
3221 keV level in S-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 ca
lculated with the reported lifetime.