Search Results - "Ovanesyan, K."

Radiation hardness of LuAG:Ce and LuAG:Pr scintillator crystals by Derdzyan, M.V., Ovanesyan, K.L., Petrosyan, A.G., Belsky, A., Dujardin, C., Pedrini, C., Auffray, E., Lecoq, P., Lucchini, M., Pauwels, K.

“…Single crystals of LuAG:Ce, LuAG:Pr and un-doped LuAG were grown by the vertical Bridgman method and studied for radiation hardness under gamma-rays with doses…”
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Bridgman growth and site occupation in LuAG:Ce scintillator crystals by Petrosyan, A.G., Ovanesyan, K.L., Sargsyan, R.V., Shirinyan, G.O., Abler, D., Auffray, E., Lecoq, P., Dujardin, C., Pedrini, C.

“…LuAG:Ce single crystals with various activator concentrations were grown by the vertical Bridgman technique. Characterization of crystals was done in terms of…”
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Broadband EPR Spectroscopy of Tb3+ and Fe2+ Ions in YAlO3 Single Crystals by Asatryan, G. R., Shakurov, G. S., Il’in, I. V., Petrosyan, A. G., Ovanesyan, K. L., Derdzyan, M. V.

“…A YAlO 3 crystal with an admixture of iron was studied by broadband EPR spectroscopy. Two types of paramagnetic centers were found. The energy level scheme of…”
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Hyperfine and Quadrupole Interactions in EPR of 153Eu2+ and 151Eu2+ in Yttrium–Aluminum Garnet by Potapov, A. P., Vazhenin, V. A., Petrosyan, A. G., Ovanesyan, K. L., Asatryan, G. R., Artyomov, M. Yu

“…Rhombic 153 Eu 2+ and 151 Eu 2+ centers are studied in specially grown single crystals of yttrium–aluminum garnet. The parameters of the hyperfine and…”
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A study of radiation effects on LuAG:Ce(Pr) co-activated with Ca by Petrosyan, A.G., Ovanesyan, K.L., Derdzyan, M.V., Ghambaryan, I., Patton, G., Moretti, F., Auffray, E., Lecoq, P., Lucchini, M., Pauwels, K., Dujardin, C.

“…Single crystals of LuAG:Ce co-doped with Ca2+ were grown by the vertical Bridgman method and studied for optical properties, γ-irradiation induced absorption,…”
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Site occupation and solubility limit of Sc in Lu3Al5O12 by PETROSYAN, A. G, OVANESYAN, K. L, SHIRINYAN, G. O, SARGSYAN, R. V, DUJARDIN, C, PEDRINI, C

“…Crystallographic study of the Lu3Al5O12:Sc system shows existence of a wide range of compositions involving substitutions by Sc for both six-fold octahedral…”
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Monoclinic centers of rare-earth S ions in yttrium orthoaluminate crystals by Vazhenin, V. A., Potapov, A. P., Asatryan, G. R., Petrosyan, A. G., Ovanesyan, K. L., Fokin, A. V.

“…The ESR spectrum of Gd 3+ and Eu 2+ monoclinic centers, which substitute for yttrium ions in YAlO 3 crystals doped with europium and zirconium, has been…”
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Inhomogeneous Broadening: Symmetry of Centers and Disorder in Solid Solutions and Nanocrystals by Feofilov, S.P., Kaplyanskii, A.A., Kulinkin, A.B., Zakharchenya, R.I., Ovanesyan, K., Petrosyan, A., Dujardin, C.

“…Zero-phonon electronic transitions of Cr3+ impurity ions in solid solutions and nanocrystals are studied. In the series of Lu3xY3-3xAl5O12 (0<x<1) garnet solid…”
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Paramagnetic resonance of yttrium aluminum garnet doped with 151Eu2+ ions by Vazhenin, V. A., Potapov, A. P., Asatryan, G. R., Petrosyan, A. G., Ovanesyan, K. L., Fokin, A. V., Shakurov, G. S.

“…The 151 Eu 2+ orthorhombic centers in yttrium aluminum garnet crystals have been investigated. The initial splitting and hyperfine interaction parameters have…”
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Comparison of Spectral and Scintillation Properties of LuAP:Ce and LuAP:Ce,Sc Single Crystals by Petrosyan, A.G., Derdzyan, M., Ovanesyan, K., Shirinyan, G., Lecoq, P., Auffray, E., Kronberger, M., Frisch, B., Pedrini, C., Dujardin, C.

“…Scintillation properties of LuAP:Ce and LuAP:Ce,Sc crystal series were studied under excitation by gamma-rays from a 137 Cs source. Both series demonstrated…”
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Properties of LuAP:Ce scintillator containing intentional impurities by Petrosyan, A.G., Derdzyan, M., Ovanesyan, K., Lecoq, P., Auffray, E., Trummer, J., Kronberger, M., Pedrini, C., Dujardin, C., Anfre, P.

“…Single crystals of LuAP:Ce and LuYAP(Lu*70%):Ce co-doped with tetravalent (Hf and Zr) and pentavalent (Ta) ions were grown from melts by the Bridgman process…”
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Potential of existing growth methods of LuAP and related scintillators by Petrosyan, A.G, Shirinyan, G.O, Ovanesyan, K.L, Pédrini, C, Dujardin, C, Garnier, N, Sowinski, S, Lecoq, P, Belsky, A

“…LuAP and LuYAP are promising single-crystal scintillators for use in the next generation of positron emission tomographs. The practical crystal composition in…”
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Single crystal growth and characterization of LaLuO3 by OVANESYAN, K. L, PETROSYAN, A. G, SHIRINYAN, G. O, PEDRINI, C, ZHENG, L

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Broadband EPR Spectroscopy of Tb.sup.3+ and Fe.sup.2+ Ions in YAlO.sub.3 Single Crystals by Asatryan, G. R, Shakurov, G. S, Il'in, I. V, Petrosyan, A. G, Ovanesyan, K. L, Derdzyan, M. V

“…A YAlO.sub.3 crystal with an admixture of iron was studied by broadband EPR spectroscopy. Two types of paramagnetic centers were found. The energy level scheme…”
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Hyperfine and Quadrupole Interactions in EPR of .sup.153Eu.sup.2+ and .sup.151Eu.sup.2+ in Yttrium-Aluminum Garnet by Potapov, A. P, Vazhenin, V. A, Petrosyan, A. G, Ovanesyan, K. L, Asatryan, G. R, Artyomov, M. Yu

“…Rhombic .sup.153Eu.sup.2+ and .sup.151Eu.sup.2+ centers are studied in specially grown single crystals of yttrium-aluminum garnet. The parameters of the…”
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Discrete zero-phonon Cr3+ lines in the spectra of Terbium–Yttrium–Lutetium Aluminum garnets solid solutions: Lattice compression and dilation by Feofilov, S.P., Kulinkin, A.B., Ovanesyan, K.L., Petrosyan, A.G.

“…The zero-phonon electronic transitions in Cr3+ impurity ions in a series of Tb3zY3−3zAl5O12 (0<z<1) and Lu3xY3−3xAl5O12 (0<x<1) garnet solid solution crystals…”
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Growth of LuAP/LuYAP single crystals for pet applications by Petrosyan, A. G., Ovanesyan, K. L., Shirinyan, G. O., Derzyan, M. V., Butaeva, T. I., Dujardin, C., Garnier, N., Pedrini, C.

“…The light yield and decay properties are the most crucial parameters of cerium-doped lutetium orthoaluminate (LuAlO 3 -Ce, LuAP) and yttrium containing solid…”
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A study of phase stability in the Lu sub(2)O sub(3)-Al sub(2)O sub(3) system by Petrosyan, A G, Popova, V F, Ugolkov, V L, Romanov, D P, Ovanesyan, K L

“…Differential thermal analysis (DTA) of LuAlO sub(3) perovskite phase was performed in argon/hydrogen atmosphere in the temperature range up to 2100 degree C…”
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A study of phase stability in the Lu2O3aAl2O3 system by Petrosyan, A G, Popova, V F, Ugolkov, V L, Romanov, D P, Ovanesyan, K L

“…Differential thermal analysis (DTA) of LuAlO3 perovskite phase was performed in argon/hydrogen atmosphere in the temperature range up to 2100 degree C…”
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Bridgman single crystal growth of Ce-doped (Lu1−xYx)AlO3 by Petrosyan, A.G., Shirinyan, G.O., Ovanesyan, K.L., Pedrini, C., Dujardin, C.

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