FPGA based TL OSL system with EMCCD for luminescence studies

An FPGA based hardware system for imaging both Thermoluminescence (TL) and Optically Stimulated Luminescence (OSL) is described. This system allows spatial investigation of luminescent materials as it uses EMCCD which is one of the most sensitive detectors for low level light imaging. User-interface, graphical display of data, and instrument control has been implemented using LabVIEW. The details of this system and the results of its performance tests are enumerated in this paper. Dose recovery tests were done for quartz and feldspar and the results for most of the grains were found to be within ±10% of the real value.