Crystal growth of Ce-doped and undoped LiCaAlF6 by the Czochralski technique under CF4 atmosphere

Shimamura, Kiyoshi; Baldochi, S.L.; Ranieri, I.M.; Sato, Hiroki; Fujita, T.; Mazzocchi, V.L.; Parente, C.B.R.; Paiva-Santos, C. O.; Santilli, Celso Valentim; Sarukura, Nobuhiko; Fukuda, Tsuguo

doi:10.1016/s0022-0248(01)00593-0

Cited by 45 publications

(30 citation statements)

References 10 publications

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“…Li-containing fluorides are under study to provide new scintillation materials for neutron detection due to the high cross-section of 6 Li for neutron capture. LiBaF 3 :Ce has been reported as a particularly interesting material in this respect due to the possibility to exclude the background gamma radiation using the double discrimination detection system [1,2].…”

mentioning

confidence: 99%

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Scintillation Decay of LiCaAlF6:Ce3+ Single Crystals

Nikl

Solovieva

Mihóková

et al. 2001

phys. stat. sol. (a)

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confidence: 99%

“…It is the aim of this RRN to present results reporting on scintillation decay, photo-and thermoluminescence characteristics of LiCaAlF 6 : Ce 3+ single crystals. Some LiCaAlF 6 : Ce 3+ ion spectroscopical features were published [3] and lasing characteristics in the UV were reported [4,5].…”

mentioning

confidence: 99%

Scintillation Decay of LiCaAlF6:Ce3+ Single Crystals

Nikl

Solovieva

Mihóková

et al. 2001

phys. stat. sol. (a)

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“…It was noted in [28] that surface of the crystal shoulder was coated with some particles of LiF and AlF 3 , however, interior part of the crystal was transparent. Vaporization of LiF and AlF 3 from the surface of the melt was also noticed in [26].…”

Section: Ce-doped and Eu-doped Licaalfmentioning

confidence: 86%

“…Initially the Ce-doped lithium-calcium-aluminum uorite (LiCAF) with colquirite-type structure was considered as excellent material for UV solid-state lasers [26].…”

Section: Ce-doped and Eu-doped Licaalfmentioning

confidence: 99%

Czochralski Growth and Properties of Scintillating Crystals

2013

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The Czochralski method is one of the very few melt growth techniques that are industry friendly when considering the combination of quality, dimensions, and cost of the produced crystals suitable for their commercialization in scintillation detectors. This method is one of the oldest and most developed crystal growth processes regarding an adequate understanding the physical phenomena observed during solidication process and its practical expansion especially in the industrial scale production. It allows controllable formation of single-crystalline cylindrical ingots of various inorganic scintillation materials. The review summarizes recent progress on the Czochralski growth of a number of scintillation materials. The oxide crystals are mainly considered including the Ce and Pr--doped RE3Al5O12, RE = Y, Lu, aluminum garnets and newly discovered ultraecient Ce-doped Gd3(Ga,Al)5O12 multicomponent garnet, high density PbWO4 and CdWO4 tungstates, Ce-doped RE2SiO5, RE = Y, Gd, Lu, oxyorthosilicates and (Y,Lu)AlO3 aluminum perovskites and nally the classical Bi4Ge3O12 scintillator. Additionally, the details of the growth of other practically important non-oxide crystals, namely the Ce and Eu-doped LiCaAlF6 neutron and ultraecient Ce-doped LaBr3 scintillators, are discussed. The potential of novel micro-pulling down growth method is briey described in the combinatorial search for new scintillator materials. Selected luminescence and scintillation characteristics including the spectra and decay kinetics, light yield and radiation resistance are also illustrated and overviewed.

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“…The output energy of laser fabricated with the Ce:LiCAF single crystal depends on its size, and therefore growing large high-quality single crystal is vital. The present numerical study is motivated initially by exploring the optimal growth condition of 2-inch (5.08 cm) LiCAF crystal after a initial success on the 1-inch crystal growth experimentally, 1) and up to now, 2-, 3-, and finial 4-inch LiCAF single crystals have also been grown. 2,3) Due to the complex growth conditions in CZ and combined interaction of buoyancy, forced convection and capillary flow, it is very expensive and time-consuming to explore optimal crystal condition experimentally.…”

Section: Introductionmentioning

confidence: 99%

Numerical Study on LiCaAlF<SUB>6</SUB> Czochralski Crystal Growth

et al. 2004

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Czochralski crystal growth (CZ) is one of the most important single crystal growth techniques. A numerical study on LiCaAlF 6 (LiCAF) crystal in CZ is conducted, and three criteria, which concern with growth rate, interface shape and the instability of convection, for estimating an optimal crystal rotation are adopted. Based on a simplified CZ model with Marangoni convection included, the effect of the variable experimental parameters, such as crystal size and melt height etc., on the optimal crystal rotation is investigated by means of the finite volume method.

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Crystal growth of Ce-doped and undoped LiCaAlF6 by the Czochralski technique under CF4 atmosphere

Cited by 45 publications

References 10 publications

Scintillation Decay of LiCaAlF6:Ce3+ Single Crystals

Scintillation Decay of LiCaAlF6:Ce3+ Single Crystals

Czochralski Growth and Properties of Scintillating Crystals

Numerical Study on LiCaAlF<SUB>6</SUB> Czochralski Crystal Growth

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