Transient Mössbauer spectroscopy with57Fe |
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| Authors: | P. Helistö E. Ikonen T. Katila H. Sipilä |
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| Affiliation: | (1) Department of Technical Physics, Helsinki University of Technology, SF-02150 Espoo, Finland;(2) Outokumpu Electronics, P.O. Box 27, SF-02201 Espoo, Finland |
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| Abstract: | Transient Mössbauer experiments with57Fe are described. A time resolution of 0.7 ns is achieved with a BaF2 scintillator. Polar polyvinylidene fluoride film is shown to be well suited for producing fast mechanical modulation. Pulses of recoilless gamma radiation, of width ≈30 ns and heigth 3.5 times the Mössbauer absorption, are generated with stepwise source motion. The efficiency of transient methods in extracting Mössbauer data is demonstrated with sinusoidal motion. |
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