Zobrazeno 1 - 10
of 45
pro vyhledávání: '"I.N. Shpinkov"'
Akademický článek
Tento výsledek nelze pro nepřihlášené uživatele zobrazit.
K zobrazení výsledku je třeba se přihlásit.
K zobrazení výsledku je třeba se přihlásit.
Autor:
Stephen E. Derenzo, Noboru Ichinose, S. Neicheva, Marco Kirm, I.N. Shpinkov, A.V. Gektin, M. Weber, M. True, Dmitry A. Spassky, Kiyoshi Shimamura, N.V. Shiran
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 537:266-270
Intrinsic ultra-fast scintillations at pulsed X-ray excitation were found in LiCaAlF 6 and LiSrAlF 6 . Radiative recombination features of Ce-doped crystals are explained by differences of lattice properties, defect structure and Ce 3+ ion environmen
Autor:
Dmitry A. Spassky, Kiyoshi Shimamura, Marco Kirm, Sebastian Vielhauer, I.N. Shpinkov, G. Zimmerer, M. True, N.V. Shiran, Noboru Ichinose
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 537:291-294
Reflection, excitation and luminescence spectra of as-grown and X-ray irradiated high-purity LiCaAlF 6 crystals were studied in the temperature range of 10–300 K using synchrotron radiation in VUV. The intrinsic luminescence of samples at 10 K cons
Autor:
B.I. Zadneprovski, I.N. Shpinkov, V. V. Mikhailin, Marco Kirm, Irina Kamenskikh, V. N. Kolobanov
Publikováno v:
Inorganic Materials. 40:735-739
PbSO4 powders and crystals are prepared using gel growth, and their chemical and phase compositions are determined. The luminescence spectra of the crystals are measured between 10 and 300 K under excitation with 5- to 40-eV synchrotron radiation, th
Autor:
N. Guerassimova, J. Mallet, M Cribier, C. Pedrini, G.O. Shirinyan, V. V. Mikhailin, K. L. Ovanesyan, I.N. Shpinkov, Ashot Petrosyan, Dmitry A. Spassky, Christophe Dujardin, Nicolas Garnier, Remi Chipaux, J-P. Meyer, Irina Kamenskikh
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 486:278-282
Luminescence of Yb3+ from the charge-transfer state with broad emission bands and short radiative lifetimes (few to tens of nanoseconds depending on the host lattice and the temperature) is attractive for the development of fast scintillators capable
Autor:
Dmitry A. Spassky, V. V. Mikhailin, M.A Vishnjakova, V. A. Panov, G. Zimmerer, I.N. Shpinkov, Elena E. Lomonova, Mikhail A. Borik, Marco Kirm, Irina Kamenskikh, N. Guerassimova, N.I Markov
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 486:234-238
For the first time in HfO 2 –Yb 2 O 3 and ZrO 2 –Yb 2 O 3 solid solutions fast luminescence with a characteristic time of ∼20 ns was observed, it was attributed to the charge transfer process involving the states of Yb 3+ ion and adjacent oxyge
Autor:
V. V. Mikhailin, Andrey N. Vasil’ev, P. A. Orekhanov, Dmitry A. Spassky, V. N. Kolobanov, I.N. Shpinkov, Irina Kamenskikh, A.N. Belsky
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 486:367-373
The relaxation of electronic excitations in scintillating crystals is discussed in terms of recombination of correlated and stochastic electronic excitations. The effects of impurities and excitation density on the intrinsic luminescence yield in the
Autor:
Dmitry A. Spassky, V. V. Mikhailin, Irina Kamenskikh, B.I. Zadneprovsky, V. N. Kolobanov, G. Zimmerer, L.I. Potkin, I.N. Shpinkov
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 486:496-503
Features of the reflectivity spectra in the fundamental absorption region were analysed for a series of tungstates. The contribution of electronic states of cations to the formation of the bottom of the conduction band and the top of the valence band
Autor:
V. V. Mikhailin, I.N. Shpinkov, B.I. Zadneprovsky, Georg Zimmerer, V. N. Kolobanov, Irina Kamenskikh, Andrey N. Vasil’ev, Dmitry A. Spassky, L.I. Potkin
Publikováno v:
Surface Review and Letters. :469-472
The optical properties of a wide series of the tungstates with the scheelite and wolframite crystal structure at the threshold of the fundamental absorption region were studied. New information about the influence of the electronic states forming the
Publikováno v:
Radiation Effects and Defects in Solids. 155:153-157
The luminescence emission and excitation spectra of CsBr were measured in the XUV and X-ray region. The quantum yield of the 470 nm luminescence band attributed to inadvertent impurity demonstrated positive jumps at the core absorption edges suggesti