Figure 4
(a) Horizontal beam profile of the beam transmitted through a slit of size 3 mm (H) × 1 mm (V). The optical slit position for transmission of the energy band for the Nb K-edge XANES spectra is marked by a black circle. (b) Incident beam spectra (I0 slit) on the CCD after slit insertion. Pixels Xp 1065 are blocked by the slit. Absorption spectra (It slit) of the Nb foil are measured in the presence of the slit. |