Under an electron beam, the atoms constituting the matter transmit X-rays with a characteristic energy for each element. This analysis allows to identify minor and major chemical elements constituting a material..
Identification of the matter components (pigments, metals, stones, glass, etc.), of corrosion products, provenance study, etc. Qualitative and semi-quantitative analysis.
Under an accelerated proton beam, atoms constituting matter transmit characteristic X-rays. These X-rays are detected with specialised sensors allowing to obtain elemental composition of a material with major components (>10%), minor components (<10%) and traces (<1%). This is a Non Destructive Analysis (NDA).
Specific application to the study of vitreous and metallic materials (composition and provenance study). Qualitative and quantitative analysis.
Under an electron beam, atoms constituting matter transmit characteristic X-rays that are detected according their wavelength. This analysis gives access to the composition of the material with major, minor and traces elements.
Identification of the matter components (pigments, metals, stones, etc.), of the corrosion products, provenance study, etc. Qualitative and quantitative analysis.
Under a laser beam, the material is disintegrated in the form of nanoparticles then sent in a plasma. This plasma is accelerated towards a mass spectrometer to analyse the elements constituting the material.
Specific application to metals and glasses. Allows to obtain very precise chemical composition. This technique is used to detect (when necessary) trace elements (for gold especially).