Alpha–gamma pulse-shape discrimination in Gd3Al2Ga3O12 (GAGG):Ce3+ crystal scintillator using shape indicator

Tamagawa, Y.; Inukai, Y.; Ogawa, Izumi; Kobayashi, Masaaki

doi:10.1016/j.nima.2015.05.052

Cited by 34 publications

(14 citation statements)

References 16 publications

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“…Therefore, they are more often trapped, which leads to slower scintillation decay. Such an effect has been reported before and is studied for the purpose of pulse‐shape particle discrimination …”

Section: Resultsmentioning

confidence: 75%

Garnet Scintillators of Superior Timing Characteristics: Material, Engineering by Liquid Phase Epitaxy

Průša

Kučera

Babin

et al. 2017

Advanced Optical Materials

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Using liquid phase epitaxy, the Mg co-doped multicomponent garnet film scintillators of composition (Ce 0.01 Lu 0.27 Gd 0.74 ) 3-x Mg x (Ga 2.48 Al 2.46 )O 12 , x = 0-0.002 (0-700 at. ppm) are prepared. Following luminescence and scintillation characteristics and their dependence on Mg concentration are studied: photoluminescence emission and excitation spectra, radioluminescence spectra, photoluminescence and scintillation decay curves, light yield, energy resolution, and afterglow. At lower Mg concentration, the timing characteristics are slightly improved, while light yield and energy resolution are not negatively influenced. At higher Mg concentration, scintillation decay is significantly accelerated, although light yield is somewhat reduced. Afterglow values become extraordinarily low for a garnet scintillator, at least two times better than the best values published so far, which paves the way for their application in fast frame imaging applications. A mechanism of the improvement is shortly discussed.

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Section: Resultsmentioning

confidence: 75%

Garnet Scintillators of Superior Timing Characteristics: Material, Engineering by Liquid Phase Epitaxy

Průša

Kučera

Babin

et al. 2017

Advanced Optical Materials

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“…The first was the DG method and the second was a DF method. These two methods have been widely used for the PSD of scintillators [8,9]. The alternative methods used were based on machine learning.…”

Section: Analysis Methodsmentioning

confidence: 99%

Comparative pulse shape discrimination study for Ca(Br, I)$_2$ scintillators using machine learning and conventional methods

Yoshino

Iida²,

Mizukoshi³

et al. 2021

Preprint

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In particle physics experiments, pulse shape discrimination (PSD) is a powerful tool for eliminating the major background from signals. However, the analysis methods have been a bottleneck to improving PSD performance. In this study, two machine learning methods-multilayer perceptron and convolutional neural network-were applied to PSD, and their PSD performance was compared with that of conventional analysis methods. Three calcium-based halide scintillators were grown using the vertical Bridgman-Stockbarger method and used for the evaluation of PSD. Compared with conventional analysis methods, the machine learning methods achieved better PSD performance for all the scintillators. For scintillators with low light output, the machine learning methods were more effective for PSD accuracy than the conventional methods in the low-energy region.

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“…The particle identification between alpha particles at 𝐸 𝛼 = 5.48 MeV from an 241 Am source and gamma rays at 𝐸 𝛾 = 662 keV from a 137 Cs source by a pulse shape discrimination was investigated in Refs. [16,17]. The light output and non-proportionality for low-energy alpha particles at 1.5-8.8 MeV were reported in Ref.…”

Section: Introductionmentioning

confidence: 93%

Response of the GAGG(Ce) scintillator to charged particles compared with the CsI(Tl) scintillator

Furuno,

Koshikawa,

Kawabata

et al. 2021

Preprint

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A: GAGG(Ce) is a novel scintillator with a fast response and high light output without a hygroscopic nature. It is expected to be a useful detector for charged particles at high-counting rates. However, the response of the GAGG(Ce) scintillator to charged particles has not been fully examined. In the present work, the light output and energy resolution of the GAGG(Ce) scintillator were measured for protons and alpha particles at 𝐸 𝑝 = 5-68 MeV and 𝐸 𝛼 = 8-54 MeV as well as gamma rays at 𝐸 𝛾 = 662 keV from a 137 Cs source. The results were compared with those of the CsI(Tl) scintillator. The scintillation efficiencies 𝑑𝐿/𝑑𝐸 of the GAGG(Ce) and CsI(Tl) scintillators were obtained and parametrized as a function of linear energy transfer 𝑑𝐸/𝑑𝑥.

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Alpha–gamma pulse-shape discrimination in Gd3Al2Ga3O12 (GAGG):Ce3+ crystal scintillator using shape indicator

Cited by 34 publications

References 16 publications

Garnet Scintillators of Superior Timing Characteristics: Material, Engineering by Liquid Phase Epitaxy

Garnet Scintillators of Superior Timing Characteristics: Material, Engineering by Liquid Phase Epitaxy

Comparative pulse shape discrimination study for Ca(Br, I)$_2$ scintillators using machine learning and conventional methods

Response of the GAGG(Ce) scintillator to charged particles compared with the CsI(Tl) scintillator

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