Photoacoustic X-ray absorption fine-structure spectroscopy of the NiK-edge |
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| Authors: | M. Reichling T. Masujima H. Shiwaku H. Kawata M. Ando E. Matthias |
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| Affiliation: | (1) Institut für Atom- und Festkörperphysik, Freie Universität Berlin, D-1000 Berlin 33;(2) Institute of Pharmaceutical Sciences University, 734 Hiroshima, Japan;(3) KEK, National Laboratory for High Energy Physics, 305 Ibaraki, Japan |
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| Abstract: | The X-ray absorption in a 5  m thick Ni foil for energies from 8.2 keV to 8.8 keV was measured by the photoacoustic method using a gas-microphone-cell. Results are presented for both photoacoustic amplitude and phase as a function of incident photon energy. The absorption fine structure above the NiK-edge is clearly resolved. The data are compared with a simple theory for the signal generation, and discrepancies are explained by discussing the various energy dissipation channels following the X-ray absorption. |
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| Keywords: | 78.70 Dm |
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