Geodesic
X-ray luminescence of BaF$_{2}$:Ce$^{3+}$ powders
Nanosistemy: fizika, himiâ, matematika, Tome 5 (2014) no. 6, pp. 752-756.

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We studied the mechanism for the formation of ceriumactivated barium fluoride scintillation ceramics and especially X-ray luminescence of its powdered precursors, prepared by coprecipitation of barium and cerium fluorides from aqueous solutions. We have found that the Ce$^{3+}$ luminescence, which is typical for cerium (III)-containing ceramics and single crystals, was not observed for such polycrystalline precursors, and the intensity of barium fluoride's own luminescence decreases with increasing amounts of the cerium dopant in the specimens. We have interpreted our results as two-phase precipitation of barium hydrofluoride (BaF$_{2}\cdot$HF) and cerium fluoride, respectively. Cerium (III) became incorporated in fluorite-type barium fluoride lattice only later, in the course of ceramics synthesis by the hot-pressing technique.
Keywords: fluoride powder, scintillators
Mots-clés : nanoparticles, X-ray luminescence. 
@article{NANO_2014_5_6_a1,
     author = {S. Kh. Batygov and M. N. Mayakova and S. V. Kuznetsov and P. P. Fedorov},
     title = {X-ray luminescence of {BaF}$_{2}${:Ce}$^{3+}$  powders},
     journal = {Nanosistemy: fizika, himi\^a, matematika},
     pages = {752--756},
     publisher = {mathdoc},
     volume = {5},
     number = {6},
     year = {2014},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/NANO_2014_5_6_a1/}
}
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S. Kh. Batygov; M. N. Mayakova; S. V. Kuznetsov; P. P. Fedorov. X-ray luminescence of BaF$_{2}$:Ce$^{3+}$  powders. Nanosistemy: fizika, himiâ, matematika, Tome 5 (2014) no. 6, pp. 752-756. http://geodesic.mathdoc.fr/item/NANO_2014_5_6_a1/