Preparation and scintillation properties of the Eu3+-activated SrO–Al2O3–TeO2 glasses

Nakamori, Ryogo; Kawano, Naoki; Takaku, Akito; Nakauchi, Daisuke; Kimura, Hiromi; Akatsuka, Masaki; Shinozaki, Kenji; Yanagida, Takayuki

doi:10.1016/j.materresbull.2021.111547

Cited by 23 publications

(9 citation statements)

References 41 publications

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“…In the case of glass materials, non-bridging oxygen should be one of the candidate trapping centers according to past studies, (34,35) and the amount of non-bridging oxygen is reported to increase with increasing amount of glass modifiers such as SrO. (35,36) The number of trapping sites (e.g., non-bridging oxygen) might be decreased by the replacement of SrO with Pr 2 O 3 , (18,(34)(35)(36) leading to enhanced energy transfer efficiency. Figure 10 presents X-ray-induced scintillation decay curves of the PSAT glasses.…”

Section: Scintillation Propertiesmentioning

confidence: 98%

“…All the PSAT glasses showed a halo peak, and no sharp peaks derived from a crystalline phase were observed; therefore, all the PSAT glasses were found to be amorphous. (4,18)…”

Section: Samplesmentioning

confidence: 99%

“…In addition, it might be possible to suppress their non-radiative decay since their phonon energy is lower than that of other glasses (e.g., phosphate glasses, borate glasses, and silicate glasses); therefore, they might exhibit higher PL and scintillation intensity. (13)(14)(15)(16)(17)(18) So far, several tellurite glasses such as Nd 3+ -activated 15WO 3 -5Al 2 O 3 -80TeO 2 glasses, Eu 3+ -activated 15BaO-5Al 2 O 3 -80TeO 2 glasses, Dy 3+ -activated 15BaO-5Al 2 O 3 -80TeO 2 glasses, and Eu 3+ -activated 10SrO-5Al 2 O 3 -85TeO 2 glasses have been studied as possible radiation detectors. (15)(16)(17)(18) In this paper, we focus on Pr 3+ -activated tellurite glasses.…”

Section: Introductionmentioning

confidence: 99%

“…(13)(14)(15)(16)(17)(18) So far, several tellurite glasses such as Nd 3+ -activated 15WO 3 -5Al 2 O 3 -80TeO 2 glasses, Eu 3+ -activated 15BaO-5Al 2 O 3 -80TeO 2 glasses, Dy 3+ -activated 15BaO-5Al 2 O 3 -80TeO 2 glasses, and Eu 3+ -activated 10SrO-5Al 2 O 3 -85TeO 2 glasses have been studied as possible radiation detectors. (15)(16)(17)(18) In this paper, we focus on Pr 3+ -activated tellurite glasses. Pr 3+ ions have been widely used as luminescence centers because Pr 3+ -activated materials such as Pr 3+ -activated Gd 2 O 2 S can exhibit efficient luminescence originating from the 4f-4f transitions of Pr 3+ .…”

Section: Introductionmentioning

confidence: 99%

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Radiation Response Characteristics of Pr3+-activated SrO–Al2O3–TeO2 Glasses

Nakamori¹,

Kawano²,

Takaku³

et al. 2022

Sensors and Materials

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We fabricated Pr 3+ -activated glasses having a composition of 10SrO-5Al 2 O 3 -85TeO 2 (PSAT) for potential use as radiation detectors, and their photoluminescence (PL) and X-ray-induced scintillation properties were then characterized. The PSAT glasses showed several emission peaks in their PL spectra owing to the 4f-4f transitions of Pr 3+ . Furthermore, they exhibited typical PL decay times (0.09-0.86 ms), where the decay originated from the 4f-4f transitions of Pr 3+ . In the scintillation spectra of the PSAT glasses, three peaks at approximately 480, 618, and 636 nm were observed. The scintillation decay times were 0.747-0.840 ms, corresponding to the 4f-4f transitions of Pr 3+ . Furthermore, the PSAT glasses showed afterglow levels of 352-521 ppm, and the lowest afterglow level (352 ppm) was comparable to that of Tl-activated CsI single crystal.

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Section: Scintillation Propertiesmentioning

confidence: 98%

“…All the PSAT glasses showed a halo peak, and no sharp peaks derived from a crystalline phase were observed; therefore, all the PSAT glasses were found to be amorphous. (4,18)…”

Section: Samplesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Radiation Response Characteristics of Pr3+-activated SrO–Al2O3–TeO2 Glasses

Nakamori¹,

Kawano²,

Takaku³

et al. 2022

Sensors and Materials

Self Cite

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“…(4) Because the physical and chemical properties of each scintillator are different, the most suitable one is selected on the basis of the requirements of the application. Various material forms have been used as scintillators, such as crystals, (5)(6)(7)(8)(9) ceramics, (10,11) glasses, (12)(13)(14) and liquids. (15)(16)(17)(18) To date, scintillators emitting UV-visible photons have been mainly studied because they have been used in combination with photodetectors having wavelength sensitivity in the UV-visible ranges (19) such as photomultiplier tubes (PMTs) and Si photodiodes (PDs).…”

Section: Introductionmentioning

confidence: 99%

Radiation-induced Luminescence Properties of Tm-doped Bi4Ge3O12 Single Crystals

Okazaki¹,

Nakauchi²,

Fukushima³

et al. 2023

Sensors and Materials

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We grew 0.1, 0.5, and 1% Tm-doped Bi 4 Ge 3 O 12 single crystals by the floating zone method. Their photoluminescence and scintillation properties were investigated in the range from visible to near-IR. Luminescence spectra and decay times consistent with the transitions of Tm 3+ were confirmed. X-ray-irradiated dose rate response properties were evaluated using the prepared samples and an InGaAs photodiode. The 1% Tm-doped sample showed the widest dynamic range (0.03-60 Gy/h) among the prepared samples.

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