Tl-related radiation defects in CsI:Tl

Rogulis, U.; Spaeth, J.‐M.; Elsts, E.; Dolgopolova, Alla

doi:10.1016/j.radmeas.2003.12.005

Cited by 11 publications

(8 citation statements)

References 12 publications

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“…The model of (ii) center is regarded to be a complex Tl 0 v a + . The following arguments can be considered in favor of the conclusion: [20], but single thallium ion is the structure unit of the color centers. The evidence of such conclusion is the linear dependence of the optical density at 2.55 eV on Tl concentration in CsI(Tl) samples irradiated with the same dose of 5.5 Â 10 5 Gy.…”

Section: Article In Pressmentioning

confidence: 99%

Color centers in heavily irradiated CsI(Tl) crystals

Yakovlev

Meleshko

Trefilova

2008

Journal of Luminescence

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Section: Article In Pressmentioning

confidence: 99%

Color centers in heavily irradiated CsI(Tl) crystals

Yakovlev

Meleshko

Trefilova

2008

Journal of Luminescence

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“…The comparison of induced absorption spectra shows that centers with decay time 6.5 ms do not have the band at 1.7 eV due to optical transitions in STE electron component. Since the electron component is an electron partially localized on beryllium s-states [4] the above-mentioned fact is linked with the spatial remoteness of Be + ions. TOA spectrum at E > 2 eV of centers with decay time 6.5 ms is in the region of optical transitions in STE hole component.…”

Section: Resultsmentioning

confidence: 99%

Recombination mechanism of luminescence excitation of self‐trapped excitons in BeO

Gorbunov¹,

Yakovlev

2005

phys. stat. sol. (c)

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PACS 71.35.Aa, 71.55.Ht, 78.55.Fv Time-resolved spectra, polarization of the luminescence and transient optical absorption (TOA) induced by irradiation of beryllium oxide crystals with electron pulses have been studied. Exponential stages with decay time τ = 6.5 ms in luminescence bands at 4.0, 5.0 and 6.7 eV coinciding in spectral and polarized properties with the luminescence of two different types of self-trapped excitons (STE) have been found. Efficiency of formation of centers with decay time 6.5 ms appeared to be comparable with that of formation of triplet STE. The electron fluence increase does not change the exponential character and relaxation of TOA decaying with time 6.5 ms and results in a linear growth of optical density. These data are typical of monomolecular recombination processes. Similarity of TOA spectra of centers with decay time 6.5 ms with those of V-type hole centers and hole component of STE shows that the stage 6.5 ms is due to the recombination of cation Frenkel defects. The recombination of close spatially correlated Frenkel pairs Be + V -manifests itself in a form of exponential components with decay time 6.5 ms in the luminescence of two types of STE in BeO.

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“…The inset in Fig. 3 (see details in [17]) shows the MCD-EPR spectrum taken at the MCD-wavelength of 425 nm and B || [100].…”

Section: Structural Identification Of Centres Through the Mcd-epr (Csmentioning

confidence: 99%

“…Analysing the angular dependencies of the spectrum, the model of the Tl-related centre consisting of three adjacent Tl ions has been estimated [17].…”

Section: Structural Identification Of Centres Through the Mcd-epr (Csmentioning

confidence: 99%

Optical detection of paramagnetic centres: From crystals to glass-ceramics

Rogulis

2016

Low Temperature Physics

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An unambiguous attribution of the absorption spectra to definite paramagnetic centres identified by the EPR techniques in the most cases is problematic. This problem may be solved by applying of a direct measurement techniques—the EPR detected via the magnetic circular dichroism, or briefly MCD–EPR. The present survey reports on the advantages and disadvantages applying the MCD–EPR techniques to simple and complex paramagnetic centres in crystals as well as glasses and glass-ceramics.

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Tl-related radiation defects in CsI:Tl

Cited by 11 publications

References 12 publications

Color centers in heavily irradiated CsI(Tl) crystals

Color centers in heavily irradiated CsI(Tl) crystals

Recombination mechanism of luminescence excitation of self‐trapped excitons in BeO

Optical detection of paramagnetic centres: From crystals to glass-ceramics

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