Zobrazeno 1 - 10
of 81
pro vyhledávání: '"E.A. Krivandina"'
Autor:
G. M. Shapochkin, Z. I. Zhmurova, S. P. Chernov, Denis N. Karimov, B. P. Sobolev, V. A. Bezhanov, E.A. Krivandina
Publikováno v:
Crystallography Reports. 51:1009-1015
Crystalline materials that are transparent in the vacuum UV spectral region and currently used have been reviewed. Transmission of crystals of solid solutions with the fluorite structure Ca1−x R xF2+x (R = Sc, Y, La, Yb, Lu) in the UV and vacuum UV
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 421:199-210
We evaluated the scintillation characteristics and the radiation hardness of Gd 1− x Ca x F 3− x and Gd 1− x Sr x F 3− x tysonite-type solid solutions (close to 6.6 g/cm 3 in density) doped with Ce which were grown from the congruent melt. As
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 421:180-190
As the Ce concentration (x) was increased from 0 to 0.1 (complete replacement of Gd), the emission peak wavelength shifted from 310 (due to Gd3+ emission) to 350 nm (due to Ce3+ emission). The light intensity increased from a few percent to 46% of th
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 421:191-198
Publikováno v:
Physics of the Solid State. 40:604-607
The fluoride-ion conductivity of the nonstoichiometric tysonite phases La0.95(Ba1−x Srx)0.05Fe2.95 (0⩽x⩽1) is investigated by impedance spectroscopy. Electrophysical measurements are performed in the frequency range 5–5×105 Hz and temperatur
Autor:
E.A. Krivandina, S.I. Kuptsov, Z. I. Zhmurova, I. I. Buchinskaya, Yu.D. Motin, A.A. Bistrova, Yu.A. Krechko, A.S. Solov'ev, B. P. Sobolev, A.V. Antipov, V.G. Vasil'chenko
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 103:323-329
Luminescent and radiation properties of a series of heavy-element crystals based on CdF 2 , BaF 2 , LaF 3 , Pb 0.67 Cd 0.33 F 2 , Na 0.4 Yb 0.6 F 2.2 , Y 3 Al 5 O 12 and a lead glass Φ-113 are presented. Our investigation shows that the crystals bas
Autor:
B. P. Sobolev, Z. I. Zhmurova, E.A. Krivandina, M.Yu. Sharonov, B. K. Sevastyanov, A. L. Bratus, A. A. Bystrova, L.N. Demianets
Publikováno v:
Optics Communications. 111:245-252
The spectroscopic characteristics in the 1.3 μm region of nonstoichiometric fluorite phases M 1- x R x F m (1- x )+ nx , doped by Nd 3+ ions were investigated. The direct measurement of excited state absorption and amplification in 1.3 μm region we
Autor:
V.G. Vasil'chenko, V. Kozlov, B. P. Sobolev, Yu.D. Motin, A.A. Chumakov, E.A. Krivandina, Z. I. Zhmurova, A.V. Antipov, I. I. Buchinskaya, Yu.A. Krechko, G.I. Britvich, E. G. Devitsin
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 327:346-353
A series of new inorganic scintillators, CdF 2 :Eu and CdF 2 :Tm, with their decay times 1.3–6 ns, light yields 0.4–1.0% of NaI(Tl) and radiation resistance above 10 6 –10 8 rad, is presented in this paper. Preliminary results of the influence
Publikováno v:
Physics of the Solid State. 41:573-575
The fluorine-ion conductivity of anion-deficient solid solutions R 1−x CaxF3−x and R 1−x BaxF3−x having the tysonite (LaF3) structure was investigated by the impedance spectroscopy method. R 1−x CaxF3−x (R=La, Pr, Nd, Sm, Gd, Tb, Dy, Ho)
Publikováno v:
MRS Proceedings. 348
A series of BaF2 crystals doped with 10% mole fraction of each rare earth element has been grown, and the effect of these dopants on the slow luminescence (due to anionic self trapped excitons) and fast luminescence (due to core-valence transitions)