Resumen
The y-radiation effects on copper-doped NaCl:Cu crystals were investigated. Single crystals exposed to gamma radiation from 0.001 kGy to 30 kGy at room temperature exhibited optical absorption bands attributed to Cu (236 nm), Cu + (255 nm) and F (463 nm) centers. The F and Cu absorption annealing bands were correlated to the thermoluminescence (TL) glow-curve peak structure around 30-165 °C and 215-350 °C, respectively. The TL glow curves of samples doped with 0.04 mol% and 0.08 mol% of Cu+ ions showed a strong quenching effect for higher doping concentration. In addition, thermal bleaching of y-irradiated specimens confirmed the color centers and Cu-doping participation on the TL process.
Idioma original | Inglés |
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Páginas (desde-hasta) | 1425-1428 |
Número de páginas | 4 |
Publicación | Physica Status Solidi (A) Applications and Materials Science |
Volumen | 206 |
N.º | 7 |
DOI | |
Estado | Publicada - jul. 2009 |