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Cathodoluminescence (CL) Mapping and Analyses

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Our electron microprobe is equipped with a state-of-the-art xCLent Hyperspectral cathodoluminescence spectrometer. This system is sensitive to radiation covering the entire visible light spectrum (400-850 nm) with a total detectable wavelength range from 200 (UV) to 950 nm (near infra-red). While in mapping mode, a full CL spectrum is collected at each location (pixel/step size are user determined), and the resultant maps and spectra are conveniently stored on a local hard drive for future access. Once collected, specific wavelengths of radiation can be selected, extracted, and further examined using the xCLent Image software package. Advanced Gaussian peak-fitting operations and fully integrated look-up tables allow for wavelengths of radiation associated with specific compositional and/or lattice features to be easily identified and quantified. 

CL image of natural quartz crystal showing colors associated with Ti in the quartz lattice and lattice defects