OSL chip characterisation, in-vivo evidence, TBI / TSET, energy and angular response, nanoDot replacements. Curated daily from Europe PMC (PubMed + PMC + preprints) and OpenAlex — free-full-text link on each open-access paper.
BackgroundVolumetric modulated arc therapy (VMAT) enables highly conformal pelvic dose delivery, but its clinical benefit depends on agreement between the Treatment Planning System (TPS) calculation and the dose actually delivered in anatomically realistic conditions.PurposeTo experimentally validate VMAT dosimetric accuracy for cervical cancer using optically stimulated lumine…
Accurate and reliable radiation dosimetry is critical for applications ranging from cancer radiotherapy to nuclear safety and space exploration. While thermoluminescence and optically stimulated luminescence serve as benchmark technologies, their inherently destructive readout mechanisms preclude the straightforward, repeated verification of an absorbed dose and require complex…
Xinquan Zhou, David Van der Heggen, Philippe F. Smet, Maxime Delaey et al.
In luminescent materials, excitation-time-dependent spectral evolution in connection with nonequilibrium carrier dynamics often remain poorly understood. Here we show that coupled trapping and de-trapping processes govern this behavior in a multi-center luminescent system for the case of Sb3+ doped CsCdCl3, featuring hexagonal and cubic phases. Especially in hexagonal CsCdCl3:S…
Yusuke Ito, Yusei Nishihara, Masanao Kobayashi, Tomoya Hibino et al.
BACKGROUND: In computed tomography (CT), radiation dose is commonly evaluated using system-displayed metrics such as CTDIvol; however, variations in X-ray beam quality may influence organ absorbed dose even under identical CTDIvol conditions. PURPOSE: To investigate the impact of X-ray beam quality, including tube voltage and beam-shaping filters, on organ absorbed dose in ches…
Nuno Bicho, Ana Gomes, Elena Skosey-LaLonde, Mussa Raja
This paper presents a systematic review of absolute dating data from Mozambique, drawing on a compiled database of 442 dates from 69 sites. The dataset spans archaeological and palaeoenvironmental contexts and encompasses dates ranging from the present day to close to a half a million years ago, covering the whole of the Holocene and part of the Middle and Upper Pleistocene. Th…
Soheil Aghabaklooei, Hiroshi Yasuda, Hassna Bantan, Muhammad Bilal et al.
Abstract Radiophotoluminescent (RPL) glass dosimeters are widely used for personal and environmental radiation monitoring purposes. However, their ability to determine irradiation geometries remains largely unexplored. In this study, we investigated the feasibility of determining X-ray incident angles using an originally developed RPL imaging system. The RPL glass samples were …
Sekkat H, Khallouqi A, Halimi A, El Rhazouani O et al.
ObjectiveFrom a radioprotection perspective, this work aims to quantify how vertical miscentering redistributes tissue-specific dose and alters objective image quality in pediatric head CT, using a novel in-house heterogeneous pediatric head phantom, in order to better characterize avoidable positioning-related dose increases and support optimization of pediatric CT practice.Me…
Objective.Minor anatomical changes from evolving edema during breast radiotherapy can compromise skin dose, particularly for volumetric modulated arc therapy (VMAT). This study experimentally evaluated the robustness of conventional, skin-flash, and robust-optimization-based VMAT techniques against simulated contour variations using phantom-based surface dosimetry.Approach.Two …
Fungal keratitis is a highly blinding ocular infection that demands innovative treatment strategies, moving beyond conventional antifungal therapies. In this study, we explore the potential of MoS2 nanodots engineered with sulfur vacancies, small sizes, hydrophilicity and surface positive charge as eye drops for effective fungal keratitis management. The tailored MoS2 nanodot-b…
Rodrigues CMC, Saraiva JG, Alves LC, Rodrigues AL et al.
Luminescence dosimetry continues to advance through efforts to improve detector sensitivity, stability, and cost-effectiveness. Within this scope, Al2O3 crystals were produced by the flux-growth method, a low-cost crystal growth technique, using MoO3 precursors with purities from 99.0% to 99.95%, and Al2O3 of 99.99% and 99.999% purity. Elemental characterization was pursued usi…
Karampiperi M, Beazley JWW, Eakins JS, Rääf C et al.
Sodium chloride (NaCl) has been proposed as a retrospective and prospective dosemeter for optically stimulated luminescence (OSL) dosimetry. The potential for NaCl pellets for individualised in situ dose assessment during a radiological or nuclear (R/N) emergency was enhanced by their suitability with a portable OSL reader. The current paper studies the possibility of developin…
Warimezgane O, Hilal M, Mesradi MR, Elanique A et al.
Occupational radiation exposure during fluoroscopy-guided dorsolumbar spine surgery was evaluated using ATOM phantoms and carbon-doped aluminium oxide (Al2O3:C) nanoDot optically stimulated luminescence (OSL) dosemeters. A controlled 50-acquisition protocol (comprising anteroposterior, oblique, and lateral projections) was used to map organ-specific doses for an operating surge…
BackgroundThe lens of the eye is highly radiosensitive, yet personalized shielding during head CT remains challenging due to the lack of a rapid, pre-scan localization method.PurposeTo develop and validate a deep learning solution that enables automated, patient-specific eye protection by generating a precise 3D eyeball model directly from a single-view topogram.MethodsOur two-…
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