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Time Dependence of Inelastic Mössbauer Scattering with Stepwise Phase Modulation
Author(s) -
Haas M.,
Realo E.,
Jõgi J.
Publication year - 1993
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2221780227
Subject(s) - scattering , physics , inelastic scattering , atomic physics , electron , resonant inelastic x ray scattering , mössbauer spectroscopy , modulation (music) , phase (matter) , optics , materials science , inelastic neutron scattering , nuclear physics , quantum mechanics , acoustics
Abstract The theory of time dependence of inelastic Mössbauer scattering in the case of stepwise phase modulation of recoilless γ‐radiation is developed. In thin scatterer approximation the theory describes the conversion electron yield for different center shift and phase change values. Inhomogeneous broadening of resonant lines and a realistic law of source motion is taken into account. Experimentally the stepwise phase modulation of the 14.4 keV resonant radiation is performed by an x ‐cut quartz piezotransducer to which a 57 Co:Pd γ‐source is cemented. By using a resonance detector with thin 57 FeAl‐alloy scatterers to detect conversion electrons, an acceptable time resolution (< 30 ns) is achieved. A good agreement between theory and experiments is obtained.