energidispersionsröntgen

Energiedispersive Röntgenspektroskopie, often abbreviated as EDX or EDS, is an analytical technique used for elemental analysis or chemical characterization of a sample. It is often performed in conjunction with a scanning electron microscope (SEM) or a transmission electron microscope (TEM). When an electron beam strikes the sample in an SEM or TEM, it causes the atoms within the sample to emit characteristic X-rays. These X-rays have energies that are unique to each element. An energy-dispersive detector measures the energy of these emitted X-rays and the intensity at each energy level. By analyzing the energy spectrum, one can identify the elements present in the sample and their relative concentrations. This technique is non-destructive and can be applied to a wide range of materials. EDX is particularly useful for qualitative and semi-quantitative analysis of heavier elements. Its speed of analysis and ability to provide spatially resolved elemental maps make it a valuable tool in materials science, geology, and failure analysis.