Author/Authors :
K.W. and Rِhlsberger، نويسنده , , R. and Gerdau، نويسنده , , E. and Rüffer، نويسنده , , R. and Sturhahn، نويسنده , , W. and Toellner، نويسنده , , T.S. and Chumakov، نويسنده , , A.I. and Alp، نويسنده , , E.E.، نويسنده ,
Abstract :
A new spectroscopic technique is introduced that allows tuning of a μeV-wide beam of synchrotron radiation over a range of a few meV. It relies on nuclear resonant scattering in combination with a polarization filtering technique. The spectrometer consists of a crystal polarizer/analyzer pair in crossed setting with a grazing incidence reflection from a 57Fe-coated rotating mirror in between that acts as Doppler shifter. The demonstrated features of the new technique lay a base for μeV-resolved inelastic X-ray spectroscopy.