Exo-interferometric phase determination in nuclear resonant scatteringW. Sturhahn, C. L'abbé and T. S. Toellner
Advanced Photon Source, Argonne National Laboratory - Argonne, IL 60439, USA email@example.com
(Received 6 October 2003; accepted in final form 17 March 2004)
The time-dependent phase change of X-rays after transmission through a sample has been determined experimentally. We used an X-ray interferometer with a reference sample containing sharp nuclear resonances to prepare a phase-controlled X-ray beam. A sample with similar resonances was placed in the beam but outside of the interferometer; hence our use of the term "exo-interferometric". We show that the phase change of the X-rays due to the sample can be uniquely determined from the time-dependent transmitted intensities. The energy response of the sample was reconstructed from the phase and the intensity data with a resolution of 23 .
42.87.Bg - Phase shifting interferometry.
76.80.+y - Mössbauer effect; other -ray spectroscopy.
78.70.Ck - X-ray scattering.
© EDP Sciences 2004