Mechanism of light scattering defects formation in NaI:Tl during crystal growth
Keywords:
growth defects, inclusion of new phase, heterogeneous decay of solid solution
Abstract
Nature of growth light scattering defects in NaI:Tl crystal has been studied by optical and electron microscopy technique. The heterogeneous mechanism of inclusion formation has been proposed. This mechanism consists in three stages. At first stage, sodium oxide diffuses to the internal surfaces of gas bubbles or channels. The oxide then reacts with carbon dioxide and converts into sodium carbonate. At the third stage, a new phase is formed inside the gas-filled channels. Finally carbonates covered internal surface of gas channels due to the shape of inclusion becomes morphologically stable.
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References
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3. P. Lecoq, A. Gektin, M. Korzhik. Inorganic Scintillators for Detector Systems, Springer (2017), 408 p.
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5. A.V. Gektin, B.G. Zaslavsky. Crystal Growth Technology, John Wiley & Sons, Ltd, Chichester, 511 (2003).
6. K.A. Kudin, V.I. Glushko, V.V. Shlyakhturov, A.Yu. Voloshko A.M. Kudin, Physical Surface Engineering, 9, 395 (2011).
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8. B.G. Zaslavsky, S.I. Vasetsky, A.M. Kudin, A.I. Mitichkin, J. Crystal Growth, 198/199, 856 (1999).
9. B.G.Zaslavsky, S.I.Vasetsky, A.V. Kolesnikov, B.V. Grinyov, A.I.Mitichkin, K.A. Kudin, Functional Materials, 12, 147 (2005).
10. A.N. Panova, V.I. Goriletsky, T.B. Grinyova, K.V. Shak-hova, J. Crystal Growth, 198/199, 865 (1999).
11. E.P.Kisil, L.I Philippovich, V.V. Varchenko, K.N Belikov. Methods and objects of chemical analysis, 9, 125 (2014).
12. L.N. Trefilova, A.M. Kudin, L.V. Kovaleva, B.G. Zaslavs-ky, D.I. Zosim. NIMA, A486, 474 (2002).
13. A.N. Panova, A.M. Kudin, A.V. Dolgopolova. Optics and Spectroscopy, 63, 444 (1987).
14. K.A. Kudin, A.V. Kolesnikov, B.G. Zaslavsky, A.I. Mitichkin. S.I. Vasetsky, A.Yu. Voloshko, D.S. Sofronov, Functional Materials, 18, 254 (2011).
15. A.V. Dolgopolova, E.N. Kovaleva. A.M. Kudin, A.N. Panova. Single crystal materials, Kharkov, VNII mono-kristallov, 11, 125 (1983).
16. L.E. Ivanovsky, V.N. Nekrasov. Gases and ions melts, Nauka, Moscow (1979), 371p.
17. Handbook of crystal growth. Bulk crystal growth: Basic Techniques, and Growth Mechanisms and Dynamics, 2-nd ed. Ed. P. Rudolph, Elsevier (2015), 1381 p.
18. L.M. Shamovsky. Crystal-phosphors and scintillators in geology, Nedra, Moscow (1985), 239 p.
19. Ya.E. Geguzin. Bubbles, Nauka, Moscow (1985), 174 p.
20. G.Kh. Rosenberg, G.V. Ptitsyn, L.V. Kovaleva, Solid State Physics, 21, 2970 (1979).
21. G.Kh. Rosenberg, G.V. Ptitsyn, E.F. Tchaikovsky, Yu.T. Vyday. Solid State Physics, 16, 3336 (1974).
22. E.F. Tchaikovsky, N.I. Davydenko, Yu.F. Derkach, E.V. Kovtun. Methods of obtaining and investigation of single crystals, Kharkov, VNII monokristallov, 5, 44 (1980).
23. A.N. Panova, R.Kh. Mustafina. Single crystals and scintil-lators, Kharkov: VNII monokristallov, 5, 1, 239 (1969).
24. B.V. Grinev, L.N. Shpilinskaya, L.V. Kovaleva, A.M. Ku-din, A.I. Mitichkin, T.A. Charkina, Optics & Spectroscopy, 89, 50 (2000).
25. L.N. Shpilinskaya, S.I. Vasetsky, L.V. Kovaleva, А.M. Kudin, А.I. Mitichkin, Т.А. Charkina, Functional materials, 6, 364 (1999)
Published
2018-10-11
How to Cite
КolesnikovA. V., КudinK. A., & КudinA. M. (2018). Mechanism of light scattering defects formation in NaI:Tl during crystal growth. Journal of V. N. Karazin Kharkiv National University. Series Physics, (28), 83-89. https://doi.org/10.26565/2222-5617-2018-28-10
Section
Articles
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