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Vol. 32, No. 8(2), S&M2292

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Sensors and Materials, Volume 38, Number 2(1) (2026)
Copyright(C) MYU K.K.
pp. 515-520
S&M4314 Research paper
https://doi.org/10.18494/SAM6018
Published: February 6, 2026

Comparison of Scintillation Performance of Ca3TaGa3Si2O14 and Ca3TaAl3Si2O14 Single Crystals [PDF]

Ryosei Takahashi, Kai Okazaki, Daisuke Nakauchi, Takumi Kato, Noriaki Kawaguchi, and Takayuki Yanagida

(Received October 23, 2025; Accepted December 11, 2025)

Keywords: scintillator, CTGS, CTAS, radiation detection

Ca3TaGa3Si2O14 (CTGS) and Ca3TaAl3Si2O14 (CTAS) single crystals were grown by the floating zone method, and their photoluminescence and scintillation properties were investigated. The CTGS and CTAS samples showed broad emission bands at 300–600 nm under UV light and X-rays, and the decay time constants were of ms order. From the afterglow curves after X-ray irradiation for 2 ms, the afterglow levels at 20 ms were 30 ppm for CTGS and 40 ppm for CTAS. The pulse height spectra of 137Cs γ-rays measured using the CTGS and CTAS demonstrated that the calculated light yields of CTAS and CTGS were 1200 and 600 photons/MeV, respectively.

Corresponding author: Ryosei Takahashi


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Cite this article
Ryosei Takahashi, Kai Okazaki, Daisuke Nakauchi, Takumi Kato, Noriaki Kawaguchi, and Takayuki Yanagida, Comparison of Scintillation Performance of Ca3TaGa3Si2O14 and Ca3TaAl3Si2O14 Single Crystals, Sens. Mater., Vol. 38, No. 2, 2026, p. 515-520.



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