We can obtain from X-ray fluorescence holography (XFH) direct three-dimensi
onal atomic images around those atoms emitting the X-ray fluorescence, beca
use XFH has both intensity and phase information. We measured the X-ray flu
orescence intensity of a Pd (1 0 0) single crystal and investigated the pol
ar-angle dependence after performing simulations to check the effect of the
Savitzky-Golay smoothing method. We also introduce also our simulation pro
cess.