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Nuclear Resonant Scattering is a hyperfine spectroscopy method utilizing synchrotron radiation for material analysis. This method takes advantage of the Mössbauer effect, which can be summarized as the absorption and emittance of photons by atoms within a crystalline structure without energy lost to recoil. The photons of the synchrotron radiation can be tuned to very specific frequency bandwidths around the resonant frequencies of the sample material and thus stimulate multiple hyperfine energy transitions at once. The resulting photons emitted during the decay of multiple energy transitions necessarily have different frequencies, which are measured simultaneously. The resulting time-domain waveform is the combination of the multiple waveforms with varying frequencies and intensities, which can be separated for analysis with a Fourier Transform. The advantages of this method over conventional Mössbauer Spectroscopy include the effective elimination of the excited source material, the brilliance of synchrotron radiation, and the expanded environments in which experiments can be conducted as a result of the previous two characteristics. Also, a larger amount of data can be collected very quickly with NRS.
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