Extended Structure of Fe BIS as Compared to Fe K EXAFS
E. Sobczak
Institute of Physics, Polish Academy of Sciences, Al. Lotników 32/46, 02-668 Warszawa, Poland

and S. Mobilio
INFN, Laboratori Nazionali di Frascati, 00044 Frascati, Italy
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The X-ray bremsstrahlung isochromat of Fe was measured for the photon energy 5415 eV in an extended energy range up to 300 eV above the threshold and compared to the Fe K-edge X-ray absorption spectrum. The Fourier analysis was performed for both spectra. It was stated that the extended structure of the Fe bremsstrahlung isochromat is clearly visible and is characteristic of the Fe bcc structure. Using the beat-node method, the distance between first and second shells in the bcc Fe was obtained quite close to the crystallographic value.
DOI: 10.12693/APhysPolA.82.333
PACS numbers: 79.20.Kz, 78.70.Dm