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Absolute Experimental X-Ray Form Factor of Aluminum

1969; American Institute of Physics; Volume: 184; Issue: 3 Linguagem: Inglês

10.1103/physrev.184.607

1536-6065

P. M. Raccah, Victor E. Henrich,

X-ray Spectroscopy and Fluorescence Analysis

The first nine structure factors of aluminum have been measured on an absolute scale by symmetric x-ray reflection from cold-worked powder pellets. The polarization ratio of the monochromator was measured using the scattering at 90\ifmmode^\circ\else\textdegree\fi{} in $2\ensuremath{\theta}$ from a perfect Ge crystal. The sample absorption was also measured directly on pressed pellets. The final results confirm the existence of a solid-state effect for the low-order reflections, and show excellent agreement with the free-atom relativistic Hartree-Fock calculation for high-order reflections.