Abstract
The objective of this work was to investigate the thermoluminescent properties of pure LiF in order to estimate the applicability of this material to dosimetry. Irradiations were conducted using photons (gamma and 6 MV X-rays) and megavoltage electron beams (8, 10, 14 MeV). The LiF sample pellets were produced using crystals grown by the Czochralski method. The results obtained in this study can suggest the applicability of pure LiF pellets for dosimetric purposes, provided fading is correctly accounted for. The TL response of the pellets was very intense and with dosimetric peaks in temperatures high enough to overcome most of the fading problems. Although the impurities are very important to TL phenomena, these results showed that a significant portion of the TL response of LiF based materials are due to the radiation induced defects.
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