NRS outline

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    Michelle Rodrigues

    Nuclear Resonant Scattering (NRS) is essentially a Mossbauer spectra in the time domain. In such an event, the nuclear energies of the sample under study is excited using synchrotron radiation. The intensity emitted from the energy levels of the sample close to that of the synchrotron radiation is depicted via the time spectra. This is a plot of the logarithmic intensities vs the time in ns. Numerical analysis of such an NRS spectrum based on the Fourier transformations gives rise to the corresponding frequencies. From the frequencies, information on the hyperfine parameter of the sample, i.e. Hyperfine field, Quadrupole Splitting and Isomeric Shifts can be gathered. The measurement starts with the synchrotron radiation hitting the sample in short pulses which excites the sample under study. What is measured is the delayed intensity wrt time when compared to the initial excitement of the nuclei.

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