Scintillation Properties of Composite Films Incorporating Ce3+‐Doped Yttrium Aluminum Garnet Nanoparticles in a Polystyrene Matrix DOI

Billel Zahra,

L. Guerbous, Mohammed Salah Eddine Hamroun

et al.

Journal of Applied Polymer Science, Journal Year: 2025, Volume and Issue: unknown

Published: April 8, 2025

ABSTRACT This study explores the scintillation characteristics of Ce 3+ ‐doped YAG nanoparticles embedded in a polystyrene (PS) matrix. Composite films (YAG‐PS) were previously synthesized via solvent casting, varying YAG:Ce/PS mass ratio. The light yield (SLY) was assessed using comparative approach, where nanocomposite sample detectors irradiated with 137 Cs source (662 keV) and measured an XP2020Q photomultiplier tube as photodetector, NaI:Tl single‐crystal scintillator serving reference detector. Decay kinetics evaluated Thomas Bollinger method, while coincidence timing resolution determined 511 keV annihilation photons from 22 Na source. findings indicate strong correlation between SLY synthesis parameters, optimal 23,780 ± 4700 ph/MeV achieved at YAG/PS ratio 40 wt%. Additionally, fast decay component improved to 61 1.4 ns, reached 674 ps, demonstrating enhanced performance for radiation detection. highlights influence YAG:Ce loading on properties YAG‐PS nanocomposites. These insights provide foundation optimizing scintillators applications such detection medical imaging.

Language: Английский

Scintillation Properties of Composite Films Incorporating Ce3+‐Doped Yttrium Aluminum Garnet Nanoparticles in a Polystyrene Matrix DOI

Billel Zahra,

L. Guerbous, Mohammed Salah Eddine Hamroun

et al.

Journal of Applied Polymer Science, Journal Year: 2025, Volume and Issue: unknown

Published: April 8, 2025

ABSTRACT This study explores the scintillation characteristics of Ce 3+ ‐doped YAG nanoparticles embedded in a polystyrene (PS) matrix. Composite films (YAG‐PS) were previously synthesized via solvent casting, varying YAG:Ce/PS mass ratio. The light yield (SLY) was assessed using comparative approach, where nanocomposite sample detectors irradiated with 137 Cs source (662 keV) and measured an XP2020Q photomultiplier tube as photodetector, NaI:Tl single‐crystal scintillator serving reference detector. Decay kinetics evaluated Thomas Bollinger method, while coincidence timing resolution determined 511 keV annihilation photons from 22 Na source. findings indicate strong correlation between SLY synthesis parameters, optimal 23,780 ± 4700 ph/MeV achieved at YAG/PS ratio 40 wt%. Additionally, fast decay component improved to 61 1.4 ns, reached 674 ps, demonstrating enhanced performance for radiation detection. highlights influence YAG:Ce loading on properties YAG‐PS nanocomposites. These insights provide foundation optimizing scintillators applications such detection medical imaging.

Language: Английский

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