Akademik Veri Yönetim Sistemi
Radiation Physics and Chemistry, cilt.240, 2026 (SCI-Expanded, Scopus)
The rapid assessment of radiation exposure is critical for medical triage following a large-scale radiological event, particularly for doses exceeding the ∼1 Gy threshold for Acute Radiation Syndrome. This study performs the first comprehensive dosimetric characterization of Autoclaved Aerated Concrete (AAC), a ubiquitous building material, to validate its use as a fortuitous material for accident dosimetry. The material's Optically Stimulated Luminescence (OSL) properties were systematically investigated using a state-of-the-art Single-Aliquot Regenerative-dose (SAR) protocol, thermoluminescence (TL) analysis, and dedicated stability tests. Deconvolution of the TL glow curve reveals the presence of deep, high-activation-energy traps (Ea > 1.5 eV), providing a physical basis for the excellent signal stability, which was experimentally confirmed by negligible fading over a 10-day period. The SAR protocol was successfully applied, yielding statistically consistent and reproducible dose estimates with a low overdispersion of ∼14 %. Critically, the Minimum Detectable Dose (MDD) was rigorously determined to be 0.9 Gy, with a bootstrap-validated 95 % confidence interval of ∼0.7–1.2 Gy. This result confirms that AAC is sufficiently sensitive to identify clinically relevant radiation exposures, filling a crucial gap between high-sensitivity personal dosimeters and the need for large-area environmental screening. The widespread ubiquity of AAC, combined with its demonstrated dosimetric robustness, establishes it as a viable, alternative material for large-scale dose mapping and triage in emergency response scenarios.