Time-resolved spectroscopy of CsI(CO3) scintillator

V. Yakovlev, L. Trefilova, A. Lebedinsky, Z. Daulet, I. Dubtsov

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The spectral-kinetics characteristics of short-living absorption and luminescence induced by an electron pulse irradiation (Ee=0.25 MeV, t1/2= 7ns, W=2×1010÷4×1012 electron/cm2) in CsI(CO3) crystal are studied. It is shown that the scintillation pulse of CsI(CO3) crystal is caused by the radiative annihilation of perturbed two-halogen excitons of two types, which are located in nearby impurity-vacancy dipole [CO3 2-a +] anion sites. The processes responsible for post-radiation rise and decay of both CO3 2--related luminescence bands with maxima at 2.8 and 3.2 eV are monomolecular with the thermal activation energy Erise=0.1 eV and Edecay=0.05 eV. The cathodoluminescence pulse kinetics is discussed in the terms of the thermally assistant release of holes captured by CO3 2--ions and the formation of CO3 2--perturbed two-halide excitons.

Original languageEnglish
Pages (from-to)34-37
Number of pages4
JournalJournal of Luminescence
Volume173
DOIs
Publication statusPublished - 1 May 2016

Fingerprint

Luminescence
Phosphors
scintillation counters
Spectrum Analysis
Spectroscopy
Electrons
Crystals
Halogens
Kinetics
Cathodoluminescence
Scintillation
pulses
excitons
luminescence
spectroscopy
Vacancies
Anions
Activation energy
Hot Temperature
kinetics

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Chemistry(all)
  • Biochemistry
  • Biophysics

Cite this

Time-resolved spectroscopy of CsI(CO3) scintillator. / Yakovlev, V.; Trefilova, L.; Lebedinsky, A.; Daulet, Z.; Dubtsov, I.

In: Journal of Luminescence, Vol. 173, 01.05.2016, p. 34-37.

Research output: Contribution to journalArticle

Yakovlev, V, Trefilova, L, Lebedinsky, A, Daulet, Z & Dubtsov, I 2016, 'Time-resolved spectroscopy of CsI(CO3) scintillator', Journal of Luminescence, vol. 173, pp. 34-37. https://doi.org/10.1016/j.jlumin.2015.12.044
Yakovlev, V. ; Trefilova, L. ; Lebedinsky, A. ; Daulet, Z. ; Dubtsov, I. / Time-resolved spectroscopy of CsI(CO3) scintillator. In: Journal of Luminescence. 2016 ; Vol. 173. pp. 34-37.
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