Research Achievements - Original paper -

Scintillation properties of SrF<inf>2</inf> translucent ceramics and crystal

Takumi Kato, Naoki Kawano, Go Okada, Noriaki Kawaguchi, Kentaro Fukuda, Takayuki Yanagida

Optik ( Elsevier GmbH )  168   956 - 962   2018.09  [Refereed]

Research paper (journal)   Domestic Co-author

© 2018 Elsevier GmbH We have developed SrF2 translucent ceramic by using the spark plasma sintering (SPS) method, and investigated scintillation properties and thermally stimulated luminescence (TSL) glow curves, in comparison with a SrF2 crystal. Both of the samples showed scintillation with emission peaks at 300 nm under X-ray irradiation. Based on the scintillation decay times measured, the origin of emission at 300 nm was attributed to self-trapped excitation. The scintillation light yield of the SrF2 translucent ceramic was evaluated to be about 8900 photons/MeV under 57Co γ-rays. In addition, the afterglow level of the translucent ceramic was lower than that of the crystal.

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Scintillation and dosimetric properties of Ce-doped ⁶LiF-CaF<inf>2</inf> eutectic composites

Naoki Kawano, Noriaki Kawaguchi, Kentaro Fukuda, Go Okada, Takayuki Yanagida

Optical Materials ( Elsevier B.V. )  82   60 - 64   2018.08  [Refereed]

Research paper (journal)   Domestic Co-author

© 2018 Elsevier B.V. Scintillation and dosimetric properties of 6LiF-CaF2 eutectic composites doped with different concentrations of Ce (0, 0.1 and 0.5%) were investigated. The Ce-doped samples showed scintillation due to the 5 d-4f transitions of Ce3+ and self-trapped excitons (STE) at 320–340 and 300 nm, respectively. Furthermore, the Ce-doped samples exhibited thermally-stimulated luminescence (TSL) with glow peaks around 150 °C after X-ray irradiation of 1000 mGy. The TSL response of the 0.5% Ce-doped sample increased monotonically with X-ray dose over a dose range of 0.1–1000 mGy. Moreover, the Ce-doped samples showed optically-stimulated luminescence (OSL) with peaks at 320–340 nm due to the 5 d-4f transitions of Ce3+ under 630 nm stimulation light after X-ray irradiation of 1000 mGy.

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Dosimetric properties of thulium-doped strontium aluminoborate glasses

Naoki Kawano, Noriaki Kawaguchi, Go Okada, Yutaka Fujimoto, Takayuki Yanagida

Sensors and Materials ( Sensors and Materials )  30 ( 7 ) 1539 - 1546   2018.08  [Refereed]

Research paper (journal)   Domestic Co-author

© MYU K.K. We investigated the photoluminescence (PL), scintillation, and dosimetric properties of strontium aluminoborate glasses with different thulium (Tm) concentrations of 0.1, 0.5, 1.0, and 5.0%. The Tm-doped glasses were synthesized by the conventional melt-quenching technique. In the PL and scintillation spectra, the Tm-doped samples showed a sharp peak at 460 nm due to the 4f-4f (1D2→3F4) transitions of Tm3+. Among the samples tested, the 0.5% Tm-doped sample exhibited the highest intensity in PL and scintillation. In thermally stimulated luminescence (TSL), the Tm-doped samples showed a broad glow peak around 100 °C after X-ray irradiation of 10000 mGy. The 0.5% Tm-doped sample also showed the highest TSL intensity. Furthermore, the 0.1-1.0% Tm-doped samples exhibited a linear response against X-ray doses over a range of 10-1-104 mGy.

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Comparative study of scintillation properties of Ga<inf>2</inf>O<inf>3</inf> single crystals and ceramics

Yuki Usui, Takumi Kato, Naoki Kawano, Go Okada, Noriaki Kawaguchi, Takayuki Yanagida

Journal of Luminescence ( Elsevier B.V. )  200   81 - 86   2018.08  [Refereed]

Research paper (journal)   Domestic Co-author

© 2018 Elsevier B.V. A series of bulk Ga2O3 were prepared by four different methods (Floating Zone (FZ), Edge-defined Film-fed Grown (EFG), spark plasma sintering (SPS) and conventional sintering in air) to obtain in single crystal and ceramic forms. In photoluminescence (PL), all the samples showed defect-related luminescence due to recombination between donors and acceptors; however, the peak position was different in each sample. The PL and scintillation decay curves were approximated by a sum of two exponential decay functions, and emission origins were attributed to to recombination between donors and acceptors. Pulse height spectrum of 241Am α-ray irradiation was demonstrated by using the present samples, and we confirmed that the one prepared by the EFG method indicated a clear full energy absorption peak, and the estimated light yield was 3200 ± 320 ph/5.5 MeV-α.

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Characterizations of Ce-doped Y<inf>4</inf>Al<inf>2</inf>O<inf>9</inf> crystals for scintillator applications

Go Okada, Masaki Akatsuka, Hiromi Kimura, Masaki Mori, Naoki Kawano, Noriaki Kawaguchi, Takayuki Yanagida

Sensors and Materials   30 ( 7 ) 1547 - 1554   2018.08  [Refereed]

Research paper (journal)   Domestic Co-author

© MYU K.K. Ce-doped Y4Al2O9 (YAM) crystals were grown by the floating zone method, and several different characterizations were conducted for scintillator applications. Both photoluminescence (PL) and scintillation show emissions predominantly due to the 5d-4f transitions of Ce3+ over 400-600 nm. The luminescence lifetime is approximately 10 ns for PL while the scintillation decay curve is best fitted by a second-order exponential decay function with the lifetimes of approximately 30 and 300 ns. These lifetimes are faster than that for Ce:Y3Al5O12 (YAG) (~120 ns) and close to that of Ce:YAlO3 (YAP) (~30 ns). The Ce-doped YAM shows a relatively high afterglow signal induced by X-rays (2 ms pulse) possibly due to the inclusion of a large number of defect centers. Pulse height spectroscopy was demonstrated under alpha-ray irradiation, and a successful sample showed a full-energy peak.

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Scintillation characteristics of Pr:CaF<inf>2</inf> crystals for charged-particle detection

Noriaki Kawaguchi, Hiromi Kimura, Masaki Akatsuka, Go Okada, Naoki Kawano, Kentaro Fukuda, Takayuki Yanagida

Sensors and Materials ( Sensors and Materials )  30 ( 7 ) 1585 - 1590   2018.06  [Refereed]

Research paper (journal)   Domestic Co-author

© MYU K.K. The scintillation properties of Pr:CaF2 were studied in comparison with those of Eu:CaF2 under α-ray excitation using a sealed source of 241Am. The relative light yields of the Pr:CaF2 crystals were approximately 0.6-13% of the Eu:CaF2 crystal that is known as a conventional scintillator for charged-particle detection. The scintillation decay times of the Pr:CaF2 crystals were significantly faster than that of the Eu:CaF2 crystal. Therefore, the Pr:CaF2 crystals can be used for charged-particle measurements with high count rates.

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Scintillation and optical properties of Sn-doped Ga<inf>2</inf>O<inf>3</inf> single crystals

Yuki Usui, Daisuke Nakauchi, Naoki Kawano, Go Okada, Noriaki Kawaguchi, Takayuki Yanagida

Journal of Physics and Chemistry of Solids   117   36 - 41   2018.06  [Refereed]

Research paper (journal)   Domestic Co-author

© 2018 Elsevier Ltd Sn-doped Ga2O3 single crystals were synthesized by the Floating Zone (FZ) method. In photoluminescence (PL) under the excitation wavelength of 280 nm, we observed two types of luminescence: (1) defect luminescence due to recombination of the donor/acceptor pairs which appears at 430 nm and (2) the nsnp-ns2 transitions of Sn2+ which appear at 530 nm. The PL and scintillation decay time curves of the Sn-doped samples were approximated by a sum of exponential decay functions. The faster two components were ascribed to the defect luminescence, and the slowest component was owing to the nsnp-ns2 transitions. In the pulse height spectrum measurements under 241Am α-rays irradiation, all the Sn-doped Ga2O3 samples were confirmed to show a full energy absorption peak but the undoped one. Among the present samples, the 1% Sn-doped sample exhibited the highest scintillation light yield (1,500 ± 150 ph/5.5 MeV-α).

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Scintillation and dosimeter properties of ⁶LiF/CaF<inf>2</inf>:Eu eutectic composites

Naoki Kawano, Noriaki Kawaguchi, Kentaro Fukuda, Go Okada, Takayuki Yanagida

Journal of Materials Science: Materials in Electronics ( Springer New York LLC )  29 ( 11 ) 8964 - 8969   2018.06  [Refereed]

Research paper (journal)   Domestic Co-author

© 2018, Springer Science+Business Media, LLC, part of Springer Nature. We investigated scintillation and dosimeter properties of 6LiF/CaF2 eutectic composites doped with different concentrations of Eu (0.005, 0.02, 0.1, 0.3, and 1.0). In the photoluminescence (PL) and scintillation spectra, an emission peak at 430 nm due to the 5d–4f transitions of Eu2+ was observed. The intensity of PL and scintillation for 6LiF/CaF2:0.005%Eu was the highest among the samples tested. In thermally stimulated luminescence (TSL), several glow peaks of 6LiF/CaF2:0.005%Eu were observed after X-ray irradiation of 1000 mGy. The TSL response exhibited a linear response against X-ray dose over a dose range of 1–10,000 mGy. In optically stimulated luminescence (OSL), an emission peak was observed at 430 nm during a stimulation by 630 nm light after X-ray irradiation of 1000 mGy. The OSL intensity was the highest for 6LiF/CaF2:0.005%Eu among all the samples investigated.

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Non-doped Li<inf>2</inf>CO<inf>3</inf> ceramics as a new radio-photoluminescence material

Fumiya Nakamura, Takumi Kato, Go Okada, Naoki Kawano, Noriaki Kawaguchi, Takayuki Yanagida

Materials Letters ( Elsevier B.V. )  221   51 - 53   2018.06  [Refereed]

Research paper (journal)   Domestic Co-author

© 2018 In this letter, we repot a new radio-photoluminescence (RPL) material. The RPL was observed non-doped Li2CO3 ceramics sintered in vacuum. Under 340 ± 40 nm excitation, a photoluminescence (PL) emission peak appeared around 470 nm, the intensity of which increases with X-ray irradiation dose. The RPL signal was very sensitive to X-ray dose, and the response signal was measurable as low as 0.1 mGy although the synthesis and measurement set-up were not optimized. This sensitivity is equivalent to that of commercial RPL dosimeters. In addition, the effective atomic number of Li2CO3 (Zeff = 7.32) is closer to that of biological tissue than any other dosimeter materials used in practice. From these reasons, we believe that this material should be a promising candidate for RPL dosimeters.

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Scintillation properties of YAlO<inf>3</inf> doped with Lu and Nd perovskite single crystals

Masaki Akatsuka, Yuki Usui, Daisuke Nakauchi, Takumi Kato, Naoki Kawano, Go Okada, Noriaki Kawaguchi, Takayuki Yanagida

Optical Materials   79   428 - 434   2018.05  [Refereed]

Research paper (journal)   Domestic Co-author

© 2018 Elsevier B.V. YAlO3 (YAP) single crystals doped with Lu and Nd were grown by the Floating Zone (FZ) method to evaluate their scintillation properties particularly emissions in the near-infrared (NIR) range. The Nd concentration was fixed to 0 or 1 mol% while the Lu concentration was varied from 0 to 30%. When X-ray was irradiated, the scintillation of Nd-doped samples was observed predominantly at 1064 nm due to 4F3/2 → 4I11/2 transition of Nd3+. In contrast, a weak emission around 700 nm appeared in the samples doped with only Lu, and the emission origin was attributed to defect centers. In the Nd3+-doped samples, the decay time was 94–157 μs due to the 4f-4f transitions of Nd3+ whereas the Lu-doped samples showed signal with the decay time of 1.45–1.54 ms. The emission origin of the latter signal was attributed to the perovskite lattice defect.

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PL and TSL properties of tin-doped zinc sodium phosphate glasses

Shotaro Hirano, Naoki Kawano, Go Okada, Noriaki Kawaguchi, Takayuki Yanagida

Radiation Measurements ( Elsevier Ltd )  112   16 - 20   2018.05  [Refereed]

Research paper (journal)   Domestic Co-author

© 2018 Elsevier Ltd Photoluminescence (PL) and thermally-stimulated luminescence (TSL) properties of Sn-doped zinc sodium phosphate glasses were evaluated. We synthesized the glass samples by the conventional melt-quenching method under ambient atmosphere. The glasses were highly transparent in 400–2700 nm. Depending on the concentration of Sn, PL quantum yield (QY) ranged from 7.7 to 25.7%, and the PLQY increased with increasing the concentration of Sn. The Sn-doped samples showed PL with a broad feature due to the 5sp→5s2 transition of Sn2+. The PL decay constants were 4.72–4.83 μs, and any dependence on the concentration of Sn was not observed. The glasses showed intense TSL, and the glow curves had a broad feature peaking at 110 °C. Among the present samples, the 0.5% Sn-doped sample exhibited the highest sensitivity with a good linearity over 5 orders of magnitude (0.1–10000 mGy). In addition, the TSL fading characteristics were evaluated, and the integrated TSL intensities after two days were 5.5% (undoped), 41% (Sn:0.1%), 38% (Sn:0.2%), 40% (Sn:0.5%) and 35% (Sn:1.0%), respectively.

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Photoluminescence and scintillation properties of Ce-doped Sr<inf>2</inf>(Gd<inf>1-x</inf>Lu<inf>x</inf>)<inf>8</inf>(SiO<inf>4</inf>)<inf>6</inf>O<inf>2</inf>(x = 0.1, 0.2, 0.4, 0.5, 0.6) crystals

Takuya Igashira, Naoki Kawano, Go Okada, Noriaki Kawaguchi, Takayuki Yanagida

Optical Materials ( Elsevier B.V. )  79   232 - 236   2018.05  [Refereed]

Research paper (journal)   Domestic Co-author

© 2018 Elsevier B.V. Apatite crystals with chemical compositions of 0.5% Ce-doped Sr2(Gd1-xLux)8(SiO4)6O2(x = 0.1, 0.2, 0.4, 0.5, 0.6) were synthesized by the Floating Zone method, and then we evaluated their photoluminescence (PL) and scintillation properties. All the Ce-doped samples exhibited PL and scintillation with an intense broad emission in 400–550 nm in which the origin was attributed to the 5d-4f transition of Ce3+, and the emission peak became broader with increasing the concentration of Lu3+. Both PL and scintillation decay time profiles were best-approximated by a sum of two exponential decay functions, and the origin of slower component was attributed to the 5d-4f transition of Ce3+. In the X-ray induced afterglow measurements, the Ce-doped Sr2(Gd0.4Lu0.6)8(SiO4)6O2sample exhibited the lowest afterglow level. Furthermore, the Ce-doped Sr2(Gd0.5Lu0.5)8(SiO4)6O2and Sr2(Gd0.4Lu0.6)8(SiO4)6O2samples showed a clear full energy deposited peak under 5.5 MeV241Am α-ray irradiation, and the estimated absolute scintillation light yields were around 290 and 1300 ph/5.5 MeV-α respectively.

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Dosimetric and scintillation properties of Ce-doped Li<inf>3</inf>PO<inf>4</inf>-B<inf>2</inf>O<inf>3</inf> glasses

Yuya Isokawa, Shotaro Hirano, Naoki Kawano, Go Okada, Noriaki Kawaguchi, Takayuki Yanagida

Journal of Non-Crystalline Solids ( Elsevier B.V. )  487   1 - 6   2018.05  [Refereed]

Research paper (journal)   Domestic Co-author

© 2018 Elsevier B.V. In this study, we developed Li3PO4-B2O3 glasses doped with different concentrations (0, 0.1, 0.2, 0.5, and 1.0%) of Ce and studied the optical, dosimetric and scintillation properties. The Ce-doped samples showed scintillation and photoluminescence (PL) due to the 5d–4f transitions of Ce3+ with a broad spectral feature peaking around 350 nm. The scintillation and PL decay times were 55–62 ± 0.03 ns and 29–31 ± 0.03 ns, respectively. The PL quantum yield (QY) was about 15.3 ± 2% for the 0.1%-doped sample, and it decreased with increasing the concentration of Ce. The thermally-stimulated luminescence (TSL) was observed in all the samples after irradiating with X-rays, and the 0.1% Ce-doped sample showed the highest sensitivity with the dynamic range confirmed from 0.1 mGy to 10 Gy, which was equivalent to commercial detectors. Moreover, optically-stimulated luminescence (OSL) was observed in the 0.1%Ce-doped sample after X-ray irradiation. Overall, doping with Ce enhanced the PL, scintillation, TSL and OSL properties. The optimal concentration of Ce was 0.1% to be used for radiation detector applications.

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Scintillation and thermoluminescence properties of Ce-doped Ca<inf>2</inf>Al<inf>2</inf>SiO<inf>7</inf> single crystals

Taiki Ogawa, Daisuke Nakauchi, Go Okada, Naoki Kawano, Noriaki Kawaguchi, Takayuki Yanagida

Journal of Luminescence   196   270 - 274   2018.04  [Refereed]

Research paper (journal)   Domestic Co-author

© 2017 Elsevier B.V. Undoped and Ce-doped Ca2Al2SiO7 single crystals with different Ce concentrations were prepared by the floating zone method. From the X-ray diffraction patterns, we confirmed that all the grown crystals have no impurity phases. The undoped sample shows scintillation induced by X-rays, and the spectrum consists of two broad emission bands peaking at 350 and 400 nm. The decay curve appeared to consist of only single exponential decay with the decay constant of 51 ns. In contrast, Ce-doped samples show a broad scintillation peaking around 400 nm, in which the decay curve consists of two exponential decay functions with the decay times of approximately 30 and 100 ns. From the pulse height spectra measured using the present samples under 241Am 59.5 keV γ-ray irradiation, we confirmed that the 0.3% Ce-doped sample exhibits the highest absolute scintillation light yield of 16,000 ph/MeV. The samples also exhibit thermoluminescence (TL). The glow curves appear to have a broad feature with the peak temperature from 100 to 500 °C for undoped and from 50 to 400 °C for Ce-doped samples. Among the present samples, the 0.3% Ce-doped sample shows the highest sensitivity, and a linear response to the irradiation dose was confirmed in the dose range of 0.01–100 mGy.

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Characterizations of Pr-doped Yb<inf>3</inf>Al<inf>5</inf>O<inf>12</inf> single crystals for scintillator applications

Yasuki Yoshida, Kenji Shinozaki, Takuya Igashira, Naoki Kawano, Go Okada, Noriaki Kawaguchi, Takayuki Yanagida

Solid State Sciences ( Elsevier Masson SAS )  78   1 - 6   2018.04  [Refereed]

Research paper (journal)   Domestic Co-author

© 2018 Elsevier Masson SAS Yb3Al5O12 (YbAG) single crystals doped with different concentrations of Pr were synthesized by the Floating Zone (FZ) method. Then, we evaluated their basic optical and scintillation properties. All the samples showed photoluminescence (PL) with two emission bands appeared approximately 300–500 nm and 550–600 nm due to the charge transfer luminescence of Yb3+ and intrinsic luminescence of the garnet structure, respectively. A PL decay profile of each sample was approximated by a sum of two exponential decay functions, and the obtained decay times were 1 ns and 3–4 ns. In the scintillation spectra, we observed emission peaks in the ranges from 300 to 400 nm and from 450 to 550 nm for all the samples. The origins of these emissions were attributed to charge transfer luminescence of Yb3+ and intrinsic luminescence of the garnet structure, respectively. The scintillation decay times became longer with increasing the Pr concentrations. Among the present samples, the 0.1% Pr-doped sample showed the lowest scintillation afterglow level. In addition, pulse height spectrum of 5.5 MeV α-rays was demonstrated using the Pr-doped YbAG, and we confirmed that all the samples showed a full energy deposited peak. Above all, the 0.1% Pr-doped sample showed the highest light yield with a value of 14 ph/MeV under α-rays excitation.

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Comparative study of radiation-induced luminescence between non-doped CsBr transparent ceramic and crystal

Hiromi Kimura, Fumiya Nakamura, Takumi Kato, Daisuke Nakauchi, Naoki Kawano, Go Okada, Noriaki Kawaguchi, Takayuki Yanagida

Journal of the Ceramic Society of Japan   126 ( 3 ) 184 - 189   2018.03  [Refereed]

Research paper (journal)   Domestic Co-author

© 2018 The Ceramic Society of Japan. All rights reserved. We synthesized bulk CsBr samples in a transparent ceramic form by spark plasma sintering (SPS) and in a single crystal form by the vertical Bridgman-Stockbarger method, and investigated their optical, scintillation and dosimeter properties. In photoluminescence, scintillation, thermally-stimulated luminescence (TSL) and optically-stimulated luminescence (OSL), the CsBr in both the material forms showed broad emission peaks at around 450 nm, the origin of which was considered to be due to oxygen impurities. The TSL and OSL properties were notably enhanced in the transparent ceramic, in particular. The dosimetric sensitivities were confirmed to be as low as 0.01 mGy using TSL but were 1mGy using OSL for both the transparent ceramic and single crystal forms.

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Comparative study of dosimeter properties of Eu-doped CsBr transparent ceramic and single crystal

Hiromi Kimura, Fumiya Nakamura, Takumi Kato, Daisuke Nakauchi, Naoki Kawano, Go Okada, Noriaki Kawaguchi, Takayuki Yanagida

Optik   157   421 - 428   2018.03  [Refereed]

Research paper (journal)   Domestic Co-author

© 2017 Elsevier GmbH We have synthesized Eu-doped CsBr transparent ceramics by spark plasma sintering (SPS) and a single crystal by the vertical Bridgman-Stockbarger method. Subsequently, we have investigated their optical, scintillation and dosimeter properties. In scintillation, both the materials showed a broad emission peaking around 440 nm, and the origin was due to 4f65d1-4f7 transitions of Eu2+. In the optically-stimulated luminescence (OSL) properties, OSL intensity of the ceramic sample was higher than those of the crystal sample. The dosimetric sensitivities were confirmed as low as 0.01 mGy using TSL while 0.1 mGy using OSL for both of the ceramic and single crystal samples.

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Scintillation, dosimeter and optical properties of MgF<inf>2</inf> transparent ceramics doped with Gd³⁺

Fumiya Nakamura, Takumi Kato, Go Okada, Naoki Kawano, Noriaki Kawaguchi, Kentaro Fukuda, Takayuki Yanagida

Materials Research Bulletin ( Elsevier Ltd )  98   83 - 88   2018.02  [Refereed]

Research paper (journal)   Domestic Co-author

© 2017 Elsevier Ltd In this study, we have developed MgF2:Gd transparent ceramics by spark plasma sintering (SPS) and evaluated the scintillation, dosimeter and optical properties. All the sample were successfully synthesized in a transparent form with relative densities over 99% to that of the single crystal. The samples were confirmed to show scintillation, thermally-stimulated luminescence (TSL) and optically-stimulated luminescence (OSL). The origin of these emissions was due to the 4f-4f transitions of Gd3+ appearing as a single peak at 310 nm. In particular, the TSL was very sensitive to X-rays, and especially the 1% Gd-doped sample showed a sensitivity as low as 0.1 mGy. The TSL response increases monotonically with the irradiation dose, and the dynamic range was confirmed to be over 0.1–1000 mGy, which was equivalent sensitivity to that of commercial personal dosimeters.

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Scintillation and dosimetric properties of Tb-doped LiCaAlF<inf>6</inf> single crystals

Noriaki Kawaguchi, Daisuke Nakauchi, Shotaro Hirano, Naoki Kawano, Go Okada, Kentaro Fukuda, Takayuki Yanagida

Japanese Journal of Applied Physics   57 ( 2 )   2018.02  [Refereed]

Research paper (journal)   Domestic Co-author

© 2018 The Japan Society of Applied Physics. We have investigated the scintillation and dosimetric properties of Tb-doped LiCaAlF6 single crystals. The X-ray-induced emission spectrum consisted of several sharp peaks due to the 4f-4f transitions of the Tb3+ ion. The thermoluminescence (TL) spectrum showed similar emission peaks as in those of the X-ray-induced luminescence. The TL intensity monotonically increased as a function of X-ray irradiation dose, and the dose response was demonstrated from 0.01 to 10 mGy. These results suggest that the Tb-doped LiCaAlF6 single crystal is a good candidate TL dosimeter material for low-dose applications.

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Scintillation and dosimetric properties of Ce-doped strontium aluminoborate glasses

Naoki Kawano, Noriaki Kawaguchi, Go Okada, Yutaka Fujimoto, Takayuki Yanagida

Journal of Non-Crystalline Solids ( Elsevier B.V. )  482   154 - 159   2018.02  [Refereed]

Research paper (journal)   Domestic Co-author

© 2017 Elsevier B.V. Strontium aluminoborate glasses with different concentrations of Ce (0, 0.01, 0.05, 0.1 and 0.5 mol%) were synthesized by the conventional melt-quenching technique. After the synthesis, photoluminescence (PL), scintillation and dosimetric properties of the samples were evaluated systematically. In the photoluminescence and scintillation spectra, a sharp peak around 370 nm due to the 5d-4f transitions of Ce was observed. The 0.05% Ce-doped sample showed the highest intensity in PL and scintillation among the samples investigated. The 0.01–0.1% Ce-doped samples also showed thermally-stimulated luminescence (TSL) with a glow peak of around 90 °C after X-ray irradiation. The TSL response of 0.01–0.05% Ce-doped samples increased monotonically with X-ray dose over a dose range of 10− 1–104 mGy.

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