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, 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
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
Optics
Pooja Seth, Shruti Aggarwal, Shaila Bahl, Pratik Kumar
Summary: This study investigates the OSL properties of MCNS material and finds that it exhibits good OSL performance under blue light excitation, with higher intensity and linear dose response compared to commercial phosphor. Structural and morphological characterization is done using XRD, SEM, EDS, and TEM. ESR study reveals the existence of copper and the role of defect centers. MCNS phosphor shows potential as an OSL dosimeter and provides new knowledge to improve the OSL sensitivity of LiF material.
Article
Chemistry, Physical
L. F. Souza, C. R. E. Silva, D. N. Souza, M. S. Nogueira
Summary: This study investigates the potential use of luminescent materials in diagnostic radiology tandem systems. Results show that both detector pairs can be effectively used for energies below 50 keV, with MBO/Al2O3:C demonstrating higher efficacy compared to 80-20MBO/Al2O3:C. The highest uncertainty is observed for MBO/Al2O3:C.
RADIATION PHYSICS AND CHEMISTRY
(2021)
Article
Optics
Camilla Lonborg Nielsen, Rosana Martinez Turtos, Mads Lykke Jensen, Brian Julsgaard, Peter Balling
Summary: In this study, phase-pure LiBaF3 nanoparticles were successfully synthesized, exhibiting radioluminescence with three peaks corresponding to different luminescent processes. Optically- and thermally stimulated luminescence showed a common luminescent pathway. The OSL signal was linearly related to dose up to-1 kGy. The TL glow peak at around 120 degrees C was depleted by optical stimulation, and the OSL signal disappeared following a TL readout. The thermal trap depth was found to be-1 eV. The high OSL light yield and reasonable fading make the nanoparticles an excellent candidate for OSL dosimetry.
JOURNAL OF LUMINESCENCE
(2023)
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.
Review
Engineering, Biomedical
Patricia B. G. Gasparian, Anna Luiza Metidieri Cruz Malthez, Leticia L. Campos
Summary: This review provides an overview of the use of optically stimulated luminescence detectors (OSLDs) for dose mapping in various applications. It examines the main characteristics and significant findings of research studies, as well as potential future developments in dose mapping using OSLD films.
PHYSICS IN MEDICINE AND BIOLOGY
(2022)
Article
Chemistry, Physical
Caline O. Santos, Bianca F. S. Santos, Yara R. R. S. Rezende, Anderson M. B. Silva, Linda V. E. Caldas, Divanizia N. Souza, Ronaldo S. Silva, Marcos V. S. Rezende
Summary: This work focuses on the synthesis and characterization of Al2O3 phosphors doped with different concentrations of barium. By evaluating their luminescent response through TL and OSL, it is found that the samples exhibit different glow peak shapes and curves with varying dopant concentrations. The activation energies associated with material transfer processes are determined through TL emission curves, indicating a high photoionization cross section for blue light-emitting diodes.
RADIATION PHYSICS AND CHEMISTRY
(2022)
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
Nuclear Science & Technology
Eduardo G. Yukihara, Adrie J. J. Bos, Pawel Bilski, Stephen W. S. McKeever
Summary: The search for new materials for thermoluminescence and optically stimulated luminescence dosimetry is an important research area, but it has faced challenges and slow progress, calling for a more guided approach in developing new luminescent materials.
RADIATION MEASUREMENTS
(2022)
Article
Chemistry, Physical
L. Pan, S. Sholom, S. W. S. McKeever, L. G. Jacobsohn
Summary: This study investigated magnesium aluminum spinels with different Mg:Al ratios for optically stimulated luminescence dosimeters, finding that stoichiometric spinel showed superior OSL dose response, stability, and sensitivity compared to other ratios.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
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
Optics
L. Camargo, P. R. Gonzalez, M. Santiago, H. Olaya Davila, J. Marcazzo
Summary: This study investigated the radioluminescence and optically stimulated luminescence properties of CaF2:Ce,Dy, showing that the inclusion of Ce and Dy improved OSL sensitivity. The experimental results demonstrated a low minimum detectable dose and OSL fading for the sample.
JOURNAL OF LUMINESCENCE
(2022)
Article
Oncology
Paige A. Taylor, Stephen F. Kry, Paola Alvarez, Tyler Keith, Carrie Lujano, Nadia Hernandez, David S. Followill
INTERNATIONAL JOURNAL OF RADIATION ONCOLOGY BIOLOGY PHYSICS
(2016)
Article
Oncology
James R. Kerns, David S. Followill, Jessica Lowenstein, Andrea Molineu, Paola Alvarez, Paige A. Taylor, Stephen F. Kry
INTERNATIONAL JOURNAL OF RADIATION ONCOLOGY BIOLOGY PHYSICS
(2016)
Article
Oncology
David J. Gladstone, Stephen F. Kry, Ying Xiao, Indrin J. Chetty
INTERNATIONAL JOURNAL OF RADIATION ONCOLOGY BIOLOGY PHYSICS
(2016)
Article
Radiology, Nuclear Medicine & Medical Imaging
Carlos E. Cardenas, Paige L. Nitsch, Rajat J. Kudchadker, Rebecca M. Howell, Stephen F. Kry
JOURNAL OF APPLIED CLINICAL MEDICAL PHYSICS
(2016)
Article
Radiology, Nuclear Medicine & Medical Imaging
Mallory E. Carson, Andrea Molineu, Paige A. Taylor, David S. Followill, Francesco C. Stingo, Stephen F. Kry
Article
Radiology, Nuclear Medicine & Medical Imaging
Scott E. Davidson, Jing Cui, Stephen Kry, Joseph O. Deasy, Geoffrey S. Ibbott, Milos Vicic, R. Allen White, David S. Followill
Article
Radiology, Nuclear Medicine & Medical Imaging
Jessie Y. Huang, David S. Followill, Rebecca M. Howell, Xinming Liu, Dragan Mirkovic, Francesco C. Stingo, Stephen F. Kry
Article
Engineering, Biomedical
Mallory C. Glenn, Victor Hernandez, Jordi Saez, David S. Followill, Rebecca M. Howell, Julianne M. Pollard-Larkin, Shouhao Zhou, Stephen F. Kry
PHYSICS IN MEDICINE AND BIOLOGY
(2018)
Article
Oncology
Sharbacha S. Edward, Paola E. Alvarez, Paige A. Taylor, H. Andrea Molineu, Christine B. Peterson, David S. Followill, Stephen F. Kry
PRACTICAL RADIATION ONCOLOGY
(2020)
Article
Engineering, Biomedical
Shannon Hartzell, Fada Guan, Paige Taylor, Christine Peterson, Phillip Taddei, Stephen Kry
Summary: This study quantified the uncertainties of TEPC measurements for therapeutic carbon beams and their impact on RBE estimates. The largest contributors to variance and bias were found to be pulse pile-up and wall effects, highlighting the importance of understanding and addressing these uncertainties when implementing clinical models.
PHYSICS IN MEDICINE AND BIOLOGY
(2021)
Review
Oncology
Stephen F. Kry, Jessica Lye, Catharine H. Clark, Nicolaus Andratschke, Alexis Dimitriadis, David Followill, Rebecca Howell, Mohammad Hussein, Masayori Ishikawa, Satoshi Kito, Tomas Kron, Jonny Lee, Jeff Michalski, Angelo Filippo Monti, Nick Reynaert, Paige Taylor, Karen Venables, Ying Xiao, Joerg Lehmann
Summary: The Global Quality Assurance of Radiation Therapy Clinical Trials Harmonisation Group compared different dose calculation frameworks and recommended dose to medium in medium as the preferred option.
RADIOTHERAPY AND ONCOLOGY
(2021)
Article
Radiology, Nuclear Medicine & Medical Imaging
Aashish C. Gupta, Constance A. Owens, Suman Shrestha, Choonsik Lee, Susan A. Smith, Rita E. Weathers, Tucker Netherton, Peter A. Balter, Stephen F. Kry, David S. Followill, Keith T. Griffin, James P. Long, Gregory T. Armstrong, Rebecca M. Howell
Summary: This study evaluated the feasibility of scaling UF/NCI computational phantoms from one age to another, demonstrating the possibility of scaling any CT-based anatomy. Results showed that the dose to organs of exact age-scaled and nearest age-matched phantoms were significantly different, suggesting using exact age-scaled phantoms for retrospective dosimetric studies is a preferable approach.
BIOMEDICAL PHYSICS & ENGINEERING EXPRESS
(2022)
Article
Oncology
Paige A. Taylor, Elizabeth Miles, Lone Hoffmann, Sarah M. Kelly, Stephen F. Kry, Ditte Sloth Moller, Hugo Palmans, Kamal Akbarov, Marianne C. Aznar, Enrico Clementel, Coreen Corning, Rachel Effeney, Brendan Healy, Alisha Moore, Mitsuhiro Nakamura, Samir Patel, Maddison Shaw, Markus Stock, Joerg Lehmann, Catharine H. Clark
Summary: The Global Clinical Trials RTQA Harmonization Group (GHG) conducted a study to evaluate and prioritize clinical trial quality assurance, and identified high-risk errors in quality assurance tests for proton and photon therapy clinical trials. These findings can be used to improve the quality of radiotherapy and optimize clinical trial processes.
RADIOTHERAPY AND ONCOLOGY
(2023)
Review
Cell Biology
Chayakrit Krittanawong, Nitin Kumar Singh, Richard A. A. Scheuring, Emmanuel Urquieta, Eric M. M. Bershad, Timothy R. R. Macaulay, Scott Kaplin, Carly Dunn, Stephen F. F. Kry, Thais Russomano, Marc Shepanek, Raymond P. P. Stowe, Andrew W. W. Kirkpatrick, Timothy J. J. Broderick, Jean D. D. Sibonga, Andrew G. G. Lee, Brian E. E. Crucian
Summary: The field of human space travel is undergoing a revolutionary change, with upcoming missions aiming to travel longer distances and durations than ever before. NASA and commercial space companies have started preparing for long-distance space exploration and plan to explore inner solar planets by the 2030s. Space travel has emerged as a potential new frontier in business, hospitality, medicine, and technology.
Article
Radiology, Nuclear Medicine & Medical Imaging
Aashish C. Gupta, Suman Shrestha, Constance A. Owens, Susan A. Smith, Ying Qiao, Rita E. Weathers, Peter A. Balter, Stephen F. Kry, Rebecca M. Howell
BIOMEDICAL PHYSICS & ENGINEERING EXPRESS
(2020)