Figure 1
(a) Optical layout of beamline ID24 and experimental set-up for T-XAS. A narrow slit is scanned through the polychromatic fan of radiation downstream of the crystal, selecting a monochromatic beam, the intensity of which is simultaneously recorded before and after the sample by two ionization chambers. (b) The contributions due to source size, Se, and slit size, σ, to the calculation of the angular spread in Bragg angle, δθ, on the crystal. |