Author/Authors :
McCarthy، نويسنده , , J.E and Cooper، نويسنده , , M.J and Honkimنki، نويسنده , , V and Tschentscher، نويسنده , , T and Suortti، نويسنده , , P and Gardelis، نويسنده , , S and Hنmنlنinen، نويسنده , , K and Manninen، نويسنده , , S.O and Timms، نويسنده , , D.N، نويسنده ,
Abstract :
The energy dependence of the magnetic Compton cross-section was measured with elliptically polarised synchrotron radiation at five energies from 245.2 to 1000.5 keV at the European Synchrotron Radiation Facility (ESRF) using a recently installed superconducting wavelength shifter, the sample was ferromagnetic iron. These measurements more than double the highest photon energy previously used in synchrotron radiation studies. It was found that the integrated intensity of the spin-dependent scattering was well described by the formulae for the differential cross-section, dσdΩ, for free, stationary electrons. The optimisation of experiments designed to yield the spin-dependent Compton profile from the double differential cross-section, d2σdΩ dω is discussed.
Keywords :
Ferromagnetism , Circular polarisation , Synchrotron radiation , Compton scattering , Scattering cross-section
