Optical cathodoluminescence microscopy
![CL equipment GZG](/storage/pictures/1ebf90d9aff9390413028e10a0782b9b.jpg)
Cathodoluminescence microscopy (CL) is an electron-optical technique by which an electron beam irradiates the surface of polished thin sections and causes the excitation of mineral-specific luminescence. By means of CL, we are able to visualize internal textures in crystals, which normally cannot be distinguished in normal light. As a result, additional information about the forming conditions of minerals can be obtained (Hot-cathode Type: HC3-LM, Fa. Simon-Neuser, Bochum).
![CL Equipment_2_GZG](/storage/pictures/3fedef06e8dad797d9c94e7c4e3bead7.jpg)
CL images are recorded with a Peltier-cooled camera system (Kappa DX 40C).
![CL_sandstone1](/storage/pictures/6296f884916e72ea0d85ac6351b7305d.jpg)