Propiedades termoluminiscentes de una albita de minas Geraes (Brasil)

+. Albite sodium feldspar is studied by thermoluminescent methods using the blue region of the spectra (circa 400nm) and the possible uses as a dosimeter are explored. The light emission of the spectra bands of natural and irradiated albite under X and gamma rays are determined using automated RISO thermoluminescence equipment. Albite is a potential material to be used as retrospective dosimeter due to its good blue thermoluminescence characteristics in good agreement with the dosimetric requirements. It is sensitive to radiation, possesses a good linearity (0.06-8Gy), shows an acceptable stability in time, it is highly reproducible and can detect low levels of dose (60mGy). The TL glow curves emission exhibit a very complex structure associated to a continuous trap distribution. This behaviour could be explained as a consequence of a dynamic creation-annihilation of a [AlO 4 /alkali] + and [AlO 4 ] o centres.