Article
Radiology, Nuclear Medicine & Medical Imaging
Kevin Liu, Brett Velasquez, Emil Schuler
Summary: This study evaluated the feasibility of different dosimeters in high dose and high dose-per-pulse applications. The results showed that Al2O3:C nanoDot optically stimulated luminescent dosimeters (OSLDs), single-use powder-based LiF:Mg,Ti thermoluminescent dosimeters (TLDs), and Gafchromic EBT3 film were all suitable up to a dose range of 40 Gy, and their response was independent of dose rate in UHDR conditions. These dosimeters can provide accurate dose measurements in UHDR beamlines, and their concurrent use with Gafchromic film allows for redundant dose measurement.
Article
Chemistry, Analytical
Katarzyna M. Szufa, Renata Majgier
Summary: This article presents the use of dietary supplements as emergency detectors in dose recovery process. The experimental results show that dietary supplements with potassium chloride exhibit good performance and can correctly differentiate different dose levels.
Article
Engineering, Biomedical
Benjamin Broadhead, Christopher Noble, Prabhakar Ramachandran
Summary: This paper compares the sensitivity variance, stability of measurement, and linearity between Al2O3:C and BeO as potential alternatives for optically stimulated luminescence dosimetry. Although BeO shows a higher response to the same dose, it exhibits a strong exponential decline in initial signal response. With pre-conditioning and individual normalization, BeO proves to be a viable alternative, potentially offering higher accuracy, precision, and reproducibility for in-vivo dosimetry.
PHYSICAL AND ENGINEERING SCIENCES IN MEDICINE
(2022)
Article
Engineering, Biomedical
Jeppe Brage Christensen, Michele Togno, Konrad Pawel Nesteruk, Serena Psoroulas, David Meer, Damien Charles Weber, Tony Lomax, Eduardo G. Yukihara, Sairos Safai
Summary: The Al2O3:C optically stimulated luminescence detectors were found to be dose rate independent and applicable for radiobiological experiments in proton beams at ultra-high dose rates, with minimal deviation from nominal doses. Two setups for ultra-high dose rate experiments were presented, as well as a new method to extract beam spot size of narrow pencil beams.
PHYSICS IN MEDICINE AND BIOLOGY
(2021)
Article
Chemistry, Analytical
Vittoria D'Avino, Fabrizio Ambrosino, Roberto Bedogni, Abner Ivan C. Campoy, Giuseppe La Verde, Silvia Vernetto, Carlo Francesco Vigorito, Mariagabriella Pugliese
Summary: The study characterizes a thermoluminescent dosimeter system for long-term neutron dose monitoring at high altitudes. The system was calibrated and exposed, demonstrating a good performance for neutron dosimetry.
Article
Optics
M. M. Isikawa, A. C. A. Assuncao, O. Baffa E. J. Guidelli
Summary: The study investigates plasmon-enhanced luminescence mechanisms using Optically Stimulated Luminescence from defect centers in X-ray irradiated sodium chloride nanocrystals deposited on silver nanoparticle films. The results suggest that plasmonic coupling does not depend on trap depth and the largest luminescence enhancements are achieved in spectral regions with smaller optical cross-sections of the defect centers. This finding has implications for improving radiation dosimetry applications by enhancing signal to noise ratio and dose assessment sensitivity and accuracy.
JOURNAL OF LUMINESCENCE
(2021)
Article
Chemistry, Multidisciplinary
Camilla L. Nielsen, Rosana M. Turtos, Martin Bondesgaard, Jacob S. Nyemann, Mads L. Jensen, Bo B. Iversen, Ludvig P. Muren, Brian Julsgaard, Peter Balling
Summary: This study demonstrates that Cu-doped LiF nanocubes are excellent candidates for 3D optically stimulated luminescence (OSL) dosimetry due to their high sensitivity, dose linearity, and stability under ambient conditions. The embedded nanocubes in silicone sheets show promising transparency and light yield, offering potential for future 3D OSL-based dosimetry.
Article
Chemistry, Physical
Georgios S. S. Polymeris
Summary: This study attempts to stimulate the deep traps in BeO using thermally assisted optically stimulated luminescence (TA-OSL), and it is found that an intense peak-shaped TA-OSL signal can be measured throughout the temperature range between room temperature and 270 degrees C, suggesting the transfer of charges from deep traps to dosimetric TL traps.
Article
Chemistry, Physical
Go Okada, Shuta Motoki, Mune-aki Sakamoto, Eiji Kusano, Ryuichi Yada, Yutaka Fujimoto, Takayuki Yanagida, Hidehito Nanto
Summary: This paper reports the optically-stimulated luminescence (OSL) properties of Eu2+-doped NaCl single crystal as a candidate phosphor for near real-time radiation measurement and dosimetry. The crystal showed lower sensitivity to X-ray dose compared to a commercial OSL detector, but demonstrated an increase in OSL response signal when reused. The OSL decay curve was analyzed and showed three exponential decay functions with different lifetimes, with the intensity of the intermediate component increasing with the number of cycles.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Review
Physics, Applied
Hidehito Nanto, Go Okada
Summary: This review paper provides an overview of the basics, materials, design, and applications of the optically stimulated luminescence (OSL) phenomenon. It covers various areas such as radiation dose monitoring, medical and dental diagnosis, dating, security, archaeology, and drug discovery. The paper also mentions the future prospects of OSL as passive dosimeters.
JAPANESE JOURNAL OF APPLIED PHYSICS
(2023)
Article
Chemistry, Inorganic & Nuclear
F. O. Ogundare, M. L. Chithambo, B. O. Akintunde
Summary: Continuous wave optically stimulated luminescence (CW-OSL) and linear modulation OSL (LM-OSL) characteristics were investigated in three different types of cowrie shells. Results showed that both CW-OSL and LM-OSL curves of the shells consist of fast, medium, and slow components, with independent peak values for all samples and linear increase with dose. The shells exhibit low coefficient of variation, making them potential materials for retrospective dosimetry.
APPLIED RADIATION AND ISOTOPES
(2021)
Article
Chemistry, Physical
Ioanna K. Sfampa, Lamprini Malletzidou, Georgios S. Polymeris, Eleana Kontonasaki, George Kitis
Summary: This study investigates the possibility of porcelain being used as a personal accident dosimeter. It examines the physical mechanisms responsible for the isothermal thermoluminescence signal of its main dosimetric peak through measurement protocols, and studies the influence of light on the same peak through optically stimulated luminescence measurements. The existence of very deep traps in the material is also examined and discussed.
RADIATION PHYSICS AND CHEMISTRY
(2023)
Article
Optics
Mads L. Jensen, Rosana M. Turtos, Brian Julsgaard, Volkmar Schulz, Peter Balling, Stefan Gundacker
Summary: This study presents a novel method for determining the branching ratio of thermalized carriers to optically stimulated luminescence (OSL) in scintillators. The method was demonstrated using a cerium-doped lutetium oxyorthosilicate (LYSO:Ce) crystal, and the observed signal was confirmed to originate from OSL photons. The branching ratio of thermalized carriers to OSL traps in LYSO:Ce was found to be (1.0 +/- 0.2)% upon excitation with 511 keV gamma photons.
JOURNAL OF LUMINESCENCE
(2022)
Article
Radiology, Nuclear Medicine & Medical Imaging
Caprioli Marco, Delombaerde Laurence, De Saint-Hubert Marijke, de Freitas Nascimento Luana, De Roover Robin, Himschoot Katleen, van der Heyden Brent, Vandenbroucke Dirk, Leblans Paul, Crijns Wouter
Summary: In this study, a dose calibration function for a novel OSL film dosimeter accounting for signal fading was derived. The impact of signal fading on dose measurement was investigated. Two accurate models for signal fading were proposed based on experimental results, and their applicability under different irradiation times was compared.
Article
Radiology, Nuclear Medicine & Medical Imaging
Mads L. Jensen, Brian Julsgaard, Rosana M. Turtos, Peter S. Skyt, Morten B. Jensen, Ludvig P. Muren, Peter Balling
Summary: A novel optically-stimulated-luminescence (OSL)-based 3D dosimetry system capable of measuring radiation doses in clinically relevant volumes was demonstrated.