Emission spectrometer solid sample composition determination having luminous discharge source creating surface atom/ion plasma and optical collection unit having mechanism limiting collection volume along common focus axis.

摘要

The emission spectrometer has a luminous discharge source creating a plasma of atoms (4) and ions from the surface (5). An optical component (11) collects the luminous radiation. A mechanism measures the distance between the sample external layer (1a) and the exposed surface (6). There is a mechanism (18) limiting the plasma in a limited collection volume (19) on the optical axis of common focus.