/// How it works
Each laser shot heats the dirt film very rapidly causing its ablation and the generation of plasma plume. The degree of cleanliness is obtained from the detection and processing of the emitted light. For each shot the pulse energy is also measured for an adequate normalization. Absolute standards made by dispersing carbon nanoparticles of controlled sizes are used for instrument calibration.
The equipment can also be calibrated by contrasting with any other technique under use by the end user, allowing a fast incorporation of this technique without modifying the existent standardization.