Scintillation and thermoluminescence characteristics of Tm-doped BaCaBO3F

Koide, Sohya; Kawano, Naoki; Kato, Takumi; Fukushima, Hiroyuki; Takebuchi, Yuma; Onoda, Daichi; Okada, Go; Yanagida, Takayuki

doi:10.1016/j.optmat.2022.112222

Cited by 4 publications

(5 citation statements)

References 37 publications

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“…According to previous studies, the scintillation decay times originated from the 4f→4f transition of Tm 3+ . 21,31) The scintillation decay times were almost the same among the fabricated Tm 2 O 3 -doped Ca 2 BO 3 Cl.…”

Section: Resultsmentioning

confidence: 79%

“…Luminescence peaks originated from the 4f→4f transition of Tm 3+ were detected. 21,30,32) The results indicates that the Tm 2 O 3 -doped Ca 2 BO 3 Cl showed TSL by recombination of holes and electrons at a Tm 3+ ion. Luminescence peaks due to a defect in a Ca 2 BO 3 Cl were not observed in the TSL spectra.…”

Section: Resultsmentioning

confidence: 87%

“…2 and previous studies, indicating that a final luminescence process for OSL was the 4f→4f transition of Tm 3+ . 21,30,32) The highest OSL intensity was observed from the 0.5% Tm 2 O 3 -doped Ca 2 BO 3 Cl, and OSL peaks derived from a defect in a Ca 2 BO 3 Cl were not detected in the OSL spectra. The results were consistent with the TSL ones.…”

Section: Resultsmentioning

confidence: 94%

“…2, the 0.5% Tm 2 O 3 -doped Ca 2 BO 3 Cl showed the highest scintillation intensity. 21,30) Further, a weak broad peak centered at 400 nm was detected. It could be related to unknown defects in a Ca 2 BO 3 Cl host.…”

Section: Resultsmentioning

confidence: 95%

“…Tm 3+ is a common luminescent center for radiation dosimetry because Tm 3+ -doped compounds show in general visible storage luminescence originating from the 4f→4f transition of Tm 3+ , and Tm-doped CaF 2 is used for TLD-300. 21,22) After the fabrication of the Tm 2 O 3 -doped Ca 2 BO 3 Cl, their dosimetric characteristics were evaluated.…”

Section: Introductionmentioning

confidence: 99%

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Dosimetric properties of Tm₂O₃-doped Ca₂BO₃Cl

Wauke,

Kawano,

Nakauchi

et al. 2023

Jpn. J. Appl. Phys.

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In this work, we prepared Ca2BO3Cl with various amounts (0.1–1.0%) of Tm2O3 by conventional solid-state reaction and investigated the dosimeter properties. Scintillation peaks at 370, 455, 470, and 650 nm that were derived from the 4f→4f transition of Tm3+ appeared in the X-ray induced scintillation spectra, and the highest scintillation intensity was detected from the 0.5% Tm2O3-doped Ca2BO3Cl. Furthermore, the Tm2O3-doped Ca2BO3Cl exhibited a thermally-stimulated luminescence (TSL) with a main glow peak at 300 °C, and the fabricated Tm2O3-doped Ca2BO3Cl exhibited a linear response in the 0.1–1000 mGy range. In addition, the TSL spectra confirmed that a final luminescence process for the TSL was the 4f→4f transition of Tm3+. In addition to TSL, optically-stimulated luminescence that was attributable to the 4f→4f transition of Tm3+ was recorded under 520 nm light, and the lowest detectable limit was about 1 mGy.

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Section: Resultsmentioning

confidence: 79%

Section: Resultsmentioning

confidence: 87%