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Scintillation Properties and Structural Features of Stilbene Polycrystals Prepared by Hot Pressing

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Journal of Applied Spectroscopy Aims and scope

The luminescent, optical, and scintillation characteristics of polycrystalline samples prepared by hot pressing crushed stilbene with different initial grain sizes were investigated. The light output and optical transmission were enhanced when the grain size increased. Additional peaks in the radio-luminescence spectra that corresponded to traps of depth ΔE12 = 0.13–0.16 eV and ΔE13,14 = 0.18–0.28 eV were found. Structural exciton traps of such depth can occur at single-crystal grain boundaries. The intensity of the additional peak increased with decreasing initial grain size, i.e., with an increase of the total interface area.

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Authors and Affiliations

  1. Institute for Scintillation Materials, National Academy of Sciences of Ukraine, 60 Lenin Ave., Kharkiv, 61001, Ukraine

    T. E. Gorbacheva, N. Z. Galunov, I. V. Lazarev, N. N. Kosinov, O. G. Vyagin & Yu. V. Malukin

Authors
  1. T. E. Gorbacheva
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  2. N. Z. Galunov
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  3. I. V. Lazarev
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  4. N. N. Kosinov
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  5. O. G. Vyagin
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  6. Yu. V. Malukin
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Correspondence to T. E. Gorbacheva.

Additional information

Translated from Zhurnal Prikladnoi Spektroskopii, Vol. 81, No. 1, pp. 165–168, January–February, 2014.

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Gorbacheva, T.E., Galunov, N.Z., Lazarev, I.V. et al. Scintillation Properties and Structural Features of Stilbene Polycrystals Prepared by Hot Pressing. J Appl Spectrosc 81, 164–167 (2014). https://doi.org/10.1007/s10812-014-9904-y

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  • DOI: https://doi.org/10.1007/s10812-014-9904-y

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