Direct observation of scattering contributions in X-ray attenuation measurements, and evidence for Rayleigh scattering from copper samples rather than thermal-diffuse or Bragg-Laue scattering

High-precision attenuation measurements can now lead to a direct assessment of scattering models in the X-ray regime. This is true not just at high en ergies but even when scattering cross-sections typically lie below 0.1% of the photoelectric absorption cross-section. This allows model-independent r esults to be obtained in these attenuation experiments for the first time. (C) 2001 Elsevier Science Ltd. All rights reserved.