QUASI-ELASTIC GAMMA-RAY SCATTERING FROM PENTADECANE

A recently developed Mössbauer instrument has been used to study the liquid dynamics of pentadecane at various temperatures and scattering angles. Widths of the quasielastic signal extracted from the data ranged between 16 GHz (at 12°C) and 48 GHz (at 74°C) at a scattering vector of 1.15 A-1. Similar measurements at five different scattering angles (at 12°C) were also taken to investigate the Q dependence between 0.82 and 1.56 A-1. The results obtained are in good agreement with classical theory for coherent scattering from liquids. © 1990 The American Physical Society.