The effect of impurities on TL emission wavelengths of NaCl crystals

Autor:	Trevor E. Derry, A. G. Kozakiewicz, J. D. Comins, L. Valberg, P.D. Townsend, M. Suszynska, A.T. Davidson
Rok vydání:	2006
Předmět:	Nuclear and High Energy Physics Wavelength range Chemistry Doping Analytical chemistry Thermoluminescence Wavelength Crystallography Dipole Impurity Condensed Matter::Superconductivity Condensed Matter::Strongly Correlated Electrons Emission spectrum Irradiation Instrumentation
Zdroj:	Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 250:354-358
ISSN:	0168-583X
DOI:	10.1016/j.nimb.2006.04.137
Popis:	We report emission spectra during thermoluminescence of NaCl crystals doped with Eu, Sr, Ca, Cr and Ni impurities. Crystals were irradiated at ambient temperature with X- or γ-rays prior to measurement. Isometric plots in the wavelength range 200–800 nm reveal only small differences in patterns of TL emission for pure samples and samples doped with Eu, Sr and Ca. However samples doped with Cr and Ni show significant variations characterized by suppressed emission between 390 nm and 520 nm. This is discussed in terms of the efficiency of colouration of the crystals and the state of aggregation of impurity–vacancy dipoles.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::4bb89fd27b945e6834327d120a862565 https://doi.org/10.1016/j.nimb.2006.04.137 Zobrazit plný text záznamu Full Text from ScienceDirect