Akademik Veri Yönetim Sistemi
Radiation Physics and Chemistry, cilt.248, 2026 (SCI-Expanded, Scopus)
The development of alternative luminescent materials is important for exploratory studies in retrospective radiation dosimetry and radiological emergency dose assessment. In this study, the ability of surgically removed kidney stones from adult female and male individuals to record radiation doses using thermoluminescence (TL) and optically stimulated luminescence (OSL) methods was investigated. The native phase (NP), representing the original biogenic material, and the heat-treated phase, representing a thermally modified kidney-stone-derived material, were separately investigated by structural, morphological, and luminescence measurements. Despite the low sensitivity of NP samples, they exhibited linear dose-response with 0.99 slope value between a dose range of 50 to 500 Gy. As an expected result, heat-treated phase samples showed higher sensitivity and reliable performance from NP samples at lower dose values. Fading analyses showed that preheating conditions are critical to increase the stability of the signals over time. In NP samples, signal fading remained at 95% after 24 h and 80% after four weeks, while a significant reduction in OSL fading occurred with heat-treated samples. The findings should be interpreted as a proof-of-concept demonstration showing that native kidney stones can exhibit measurable TL/OSL responses with possible relevance for exploratory retrospective dosimetry studies. The heat-treated samples should be considered only as thermally modified model materials used to examine the effect of structural transformation on luminescence sensitivity.