In-situ Measurements -- Characterization of Pigments Used in Ancient Egypt -- Importance of in-situ EDXRF Measurements in the Preservation and Conservation of Material Culture -- Scientific Field Research in Egypt -- Use of Ion Beam -- Ion Beam Techniques for the Non-destructive Analysis of Archaelogical Materials -- The Origin of Ancient Gemstones Unveiled by PIXE, PIGE and ?-Raman Spectrometr…