The effect of impurities on TL emission wavelengths of NaCl crystals

Davidson, A. T.; Valberg, L.; Townsend, P. D.; Kozakiewicz, Anna; Derry, T.E.; Comins, J. D.; Suszynska, M.

doi:10.1016/j.nimb.2006.04.137

Cited by 8 publications

(1 citation statement)

References 10 publications

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“…Thus we observe common intrinsic emission at 360 nm indicative of electron-hole recombination, an impurity enhanced emission at 417 nm and another common emission band near 600 nm whose origin is uncertain at this stage. Our investigations of the emission spectra of NaCl crystals have shown that emission at 417 nm is not restricted solely to Eu doped crystals [8]. It also occurs in Sr doped crystals which have been quenched before irradiation.…”

Section: Resultsmentioning

confidence: 68%

Common features of thermoluminescence in NaCl and LiF crystals

Davidson

Kozakiewicz

Derry

et al. 2007

Phys. Status Solidi (c)

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We review our work on the thermoluminescent properties of LiF and NaCl crystals. The role of impurities and their effect on glow curves is considered. A spectral analysis of light emitted at glow peaks suggests some common processes active in the two materials, including intrinsic emission from self trapped excitons near 360 nm wavelengths and impurity enhanced emission near 417 nm wavelengths. The latter may be related to the presence of impurity-vacancy dipoles in a form which favors TL emission.

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Section: Resultsmentioning

confidence: 68%

Common features of thermoluminescence in NaCl and LiF crystals

Davidson

Kozakiewicz

Derry

et al. 2007

Phys. Status Solidi (c)

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Gamma‐radiation effects on NaCl:Cu crystals

Cruz-Zaragoza

Chernov

Meléndrez

et al. 2009

Physica Status Solidi (a)

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The γ‐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 γ‐irradiated specimens confirmed the color centers and Cu‐doping participation on the TL process. (© 2009 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

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