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Similarly to the Mössbauer effect, in nuclear resonant scattering, synchrotron radiation is absorbed and reemitted. However, since this radiation covers the energy spectrum from infrared to X-ray and comes in really short pulses, it will differ from the Mössbauer effect, which uses radioactive sources. The synchrotron radiation will excite all the hyperfine resonances simultaneously. The interference of the decaying waves will create a temporal beat pattern.
History
In 1974, Ruby realized that the brilliance of synchrotron radiation sources far exceeded that of radioactive sources within the natural linewidth of the Mössbauer transition.[1]
The first time there was an observation of the Nuclear Resonant Scattering, a time-based analog of the Mössbauer effect, was around 10 years later, by Gerdau et al. [2]References
[1] S. Ruby. MÖSSBAUER EXPERIMENTS WITHOUT CONVENTIONAL SOURCES. Journal dePhysique Colloques, 1974, 35 (C6), pp.C6-209-C6-211. ff10.1051/jphyscol:1974623ff. ffjpa-00215780f
[2] Rüffer, R., Metge, J., Rüter, H.D. et al. Hyperfine Interact (1992) 71: 1353. https://doi.org/10.1007/BF02397335
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