Journal Article 3 grazing-incidence X-ray fluorescence Cu nanoparticle 1 Research Support, Non-U.S. Gov't 1 Research Support, U.S. Gov't, Non-P.H.S. 1 X-ray standing wave 1 X-ray standing waves 1 mehr ... laboratory metrology 1 many-beam dynamical diffraction theory 1 periodic nano-structures 1 silicon wafer surface 1 total reflection X-ray fluorescence 1 weniger ...