Spatially resolved luminescence

Spatial differentiation of luminescence signals for mineral specific analysis and hot spot identification

Spatially resolved luminescence

Spatially resolved luminescence from a rock surface; A shows an optical microscopy image; B, the spatial distribution of the equivalent doses; C, the natural OSL signal; D, the regenerated OSL signal (from Greilich et al., 2005)

Measuring luminescence with EMCCD camera allows for the spatial differentiation of luminescence signals. Different minerals, mineral phases, radiation hot spots etc. can be determined in granular or solid samples and provide information on small scale differences of the radiation fields, or the material inhomogeneities (e.g. semiconductors).

Greilich, S., Glasmacher U.A., Wagner G.A., 2005. Optical dating of granitic stone surfaces. Archaeometry 47, 645-665