Elastic scattering and the associated anomalous dispersion in the energy range 8.63⩽E⩽42.75 keV from heavy atoms
✍ Scribed by D. V. Rao; R. Cesareo; G. E. Gigante
- Publisher
- John Wiley and Sons
- Year
- 1998
- Tongue
- English
- Weight
- 316 KB
- Volume
- 27
- Category
- Article
- ISSN
- 0049-8246
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✦ Synopsis
Elastic scattering cross-sections for Pt, Au and Pb were measured using nearly monoenergetic unpolarized Ka x-ray photons in the energy range 8.63 O E O 42.75 keV at an angle of 90Ä. The experimental results were compared with theoretical elastic scattering cross-sections calculated using relativistic form factors (RFFs), relativistic modiÐed form factors (RMFs), a combination of RFFs, RMFs with angle-independent anomalous scattering factors (ASFs) and relativistic numerical calculations based on the multipole expansion of the second-order Smatrix approach. The experimental results were in reasonable agreement with the S-matrix values and values based on an RMF + ASF approach compared with an RFF + ASF approach.