High-resolution monochromators HRMs

The possibility to finely tune the energy of the photons using high-resolution monochromators (HRMs) has resulted in a new technique for direct determination of the phonon density of states of the resonant element— the nuclear inelastic scattering (NIS) [23-25]. Thus, in the same experimental setup, one is able to probe simultaneously hyperfine interactions and lattice dynamics of the sample. 

To further reduce the energy bandwidth of the SR from several electron volts generated by HLM to approximately millielectron volts and provide energy tunability over IOOmeV required for NRS experiments, a high-resolution monochromator (HRM) is used in the second step of monochromatization. To achieve energy bandwidth reduction and... 

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