Abstract
We use synchrotron radiation and time resolved x-ray detection to measure structural relaxations of glycerol [(OH] having time scales of 30 to 200 ns at momentum transfer. Foils containing Fe (14.4 keV nuclear resonance, 141 ns lifetime) are placed before and after the nonresonant sample, and a small difference is established in their nuclear response frequencies. Quasielastic scattering from the sample perturbs the 70 MHz quantum beat pattern of the nuclear scattering. A simple model relates the perturbation to the dynamic structure factor of the sample.
- Received 27 May 1997
DOI:https://doi.org/10.1103/PhysRevLett.79.2823
©1997 American Physical Society