Abstract
Inhomogeneous broadening of resonance lines causes a reduction of absorption in nuclear resonance experiments. This is particularly devastating to the observation of the Mössbauer effect in isomers like 107Ag with a half-life of 44s.It has been suggested in the literature that homogeneous broadening can provide overlap of resonance lines and thus theMössbauer effect can be recovered. The analysis presented in this paper shows that this is not the case for Mössbauer experiments, unless the radiative width ΓΓ also increases. Although overlap occurs when the lines are homogeneously broadened to a total width Γ_H which exceeds the natural width Γ, and the inhomogeneous width Δ, the Mössbauer absorption remains low because it is proportional to the factor of Γγ/Γ H.
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Balko, B., Kay, I., Nicoll, J. et al. Inhomogeneous and homogeneous broadening effects onnuclear resonance experiments. Hyperfine Interactions 107, 283–297 (1997). https://doi.org/10.1023/A:1012036629223
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DOI: https://doi.org/10.1023/A:1012036629223