Article
Materials Science, Multidisciplinary
Ali Alaqab, Mohammed Siddig, Essam Banoqitah, Muneer Aziz Saleh, Mohammed M. Damoom, Abdulsalam M. Alhawsawi, Naif Mohammed Al-Hada, W. R. Alharbi, Abdu Saeed
Summary: This study evaluated the performance of gamma-ray radiography using americium-241 as the gamma source in 3D-printed thermoplastic samples. The results showed that the defect detectability in the samples using Am-241 as a gamma-ray source is comparable to that of x-ray results. The study concluded that Am-241 could be used as the gamma-ray source for radiography testing in 3D-printed thermoplastics.
MATERIALS RESEARCH EXPRESS
(2023)
Article
Chemistry, Physical
A. M. M. M. Perez, M. E. Poletti
Summary: This study assessed the physical characteristics of two CR systems and used objective criteria for evaluation. The findings showed that the systems exhibited different performance characteristics at different air kerma ranges.
RADIATION PHYSICS AND CHEMISTRY
(2022)
Article
Multidisciplinary Sciences
Kelvin J. J. Xu, Gu Xu
Summary: Projection imaging is widely used in various fields, such as x-ray radiography, due to its penetration power and ballistic geometry. However, the resolution limit remains a challenge due to the conflict between source intensity and source size leading to image blurriness. A novel scheme using a square aperture instead of a circular beam is proposed to solve this problem, allowing the deciphering of blurred spots and revealing hidden pixels. Numerical verification and experimental demonstration support the potential benefits of this proposal across multiple disciplines beyond x-ray imaging.
SCIENTIFIC REPORTS
(2023)
Article
Nanoscience & Nanotechnology
Nishita Chowdhury, Nicolas Riesen, Hans Riesen
Summary: The study highlights the potential of BaLiF3 as a host matrix for upconversion sensitizer-activator pairs and demonstrates enhanced upconversion efficiency after annealing. The X-ray storage capability of BaLiF3:Yb3+, Er3+ nanocrystals is explored, showcasing possible applications in X-ray dosimetry and bioimaging.
ACS APPLIED NANO MATERIALS
(2021)
Review
Dentistry, Oral Surgery & Medicine
Estelle Casazza, Benoit Ballester, Blanche Siaud, Camille Philip-Alliez, Anne Raskin
Summary: This scoping review aimed to assess the relationship between bruxism and changes in mandibular bone density or volume based on medical imaging. Nine articles were included in the review, which showed that bruxer patients had more bony exostoses of the mandibular angle, smaller condyles, and morphological changes for cancellous and cortical mandibular bone compared to non-bruxer patients.
Review
Veterinary Sciences
Aurelie Thomas-Cancian, Emilie Segard-Weisse, Bianca Drumond, Jean-Luc Cadore
Summary: The most common diseases of the guttural pouch are empyema, tympany, mycosis, and temporohyoid osteoarthropathy. Diagnostic imaging techniques, such as radiography, ultrasound, and CT, play important roles in the diagnosis of guttural pouch disease and can provide valuable information about the lesions and surrounding structures. CT is considered the best technique for evaluating the soft tissues and identifying specific lesions associated with guttural pouch disease.
VETERINARY SCIENCES
(2023)
Article
Veterinary Sciences
Michaela Gumpenberger, Silvana Schmidt-Ukaj, Stephan Handschuh
Summary: This study focuses on the techniques and interpretation of radiography, computed tomography, and sonography in visually displaying various organs within the mantle cavity of Giant African land snails (GALS).
FRONTIERS IN VETERINARY SCIENCE
(2023)
Article
Radiology, Nuclear Medicine & Medical Imaging
J. Greffier, S. Si-Mohamed, D. Dabli, H. de Forges, A. Hamard, P. Douek, J. P. Beregi, J. Frandon
Summary: A comparison of spectral performance of four DECT platforms was conducted using task-based image quality assessment on phantom data. The detectability of simulated contrast-enhanced lesions was highest for DLCT and DSCT at the lowest energy levels. Task-driven image quality assessment showed the benefit of using low keV for detecting contrast-enhanced lesions on DECT acquisitions.
EUROPEAN RADIOLOGY
(2021)
Article
Geosciences, Multidisciplinary
E. Kuriyama, M. Masubuchi, N. Koshikawa, R. Iwashita, A. Omata, T. Kanda, J. Kataoka, M. Tsurumi, G. Diniz, T. Enoto, Y. Wada
Summary: This study reports the first imaging of gamma-ray glows from winter thunderclouds using a Compton camera. The results suggest that gamma-ray glows are generated in dense atmospheres and show the highest concentrations around the peak intensity within a specific time window.
GEOPHYSICAL RESEARCH LETTERS
(2022)
Review
Medicine, General & Internal
Davide Ippolito, Federica Vernuccio, Cesare Maino, Roberto Cannella, Teresa Giandola, Maria Ragusi, Vittorio Bigiogera, Carlo Capodaglio, Sandro Sironi
Summary: Radiology plays a crucial role in the diagnosis and management of COVID-19 patients, helping to detect manifestations and complications in different organs, with a particular focus on lung disease.
Review
Radiology, Nuclear Medicine & Medical Imaging
Melanie Champendal, Henning Muller, John O. Prior, Claudia Sa dos Reis
Summary: The number of publications on Explainable Artificial Intelligence (XAI) in medical imaging is increasing, with a focus on applying XAI techniques to classify and predict lung and brain pathologies in MRI, CT, and radiography. Visual and numerical output formats are predominantly used, and standardizing terminology remains a challenge.
EUROPEAN JOURNAL OF RADIOLOGY
(2023)
Article
Radiology, Nuclear Medicine & Medical Imaging
Jie Hu, Zhi-Feng Zheng, Shu-Hang Wang, Dong-Lei Si, Ya-Qin Yuan, Bu-Lang Gao
Summary: Most rib fractures can be detected within the first week after trauma. Detection of occult rib fractures will be delayed with increase of age, and repeated CT scanning should be appropriately postponed in patients at different ages. Trabecula, inner and outer plates, costal angle, and cartilage are the primary locations for occult and subtle fractures which should be carefully evaluated.
EUROPEAN RADIOLOGY
(2021)
Article
Chemistry, Physical
Adam Zucconi, Jennifer Hack, Theo A. M. Suter, Michele Braglia, Paul R. Shearing, Dan J. L. Brett, Alexander J. E. Rettie
Summary: A contrast enhancement agent is used to visualize the penetration and distribution of phosphoric acid in high temperature polymer electrolyte membrane fuel cells. In situ radiography shows acid plumes breaking through various layers. The study quantifies the volume and distribution of phosphoric acid and analyzes its dependency on hot-press parameters. Increasing pressure and duration of hot-pressing lead to increased acid penetration and delamination. The absence of compression control also results in significant infiltration.
JOURNAL OF POWER SOURCES
(2023)
Article
Chemistry, Analytical
M. Kathryn Hoffman, Henry B. B. Spitz, Patrick H. H. Bissmeyer, Sriharsha Mangu, Sha Xue, R. Gregory Downing, Vasil Hlinka, Lei R. R. Cao
Summary: This paper presents a molecular plating method for directly depositing Am-241 onto a Schottky electrode of 4 H-SiC devices. The method achieves high deposition recoveries and minimal damage to the device surface. A gasket with an aluminized mylar contact surface is used to accommodate the small size of the diode.
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY
(2022)
Article
Instruments & Instrumentation
Cale E. Lewis, Mini Das
Summary: This study investigates the spectral characteristics of scattered X-ray photons and proposes a method for scatter estimation and correction using energy-resolving photon counting detectors in spectral X-ray imaging. The results show that energy-sensitive scatter correction can significantly improve the quantitative accuracy of material density estimation.
JOURNAL OF INSTRUMENTATION
(2022)
Article
Nanoscience & Nanotechnology
F. Syeda, H. Magsood, E. G. Lee, A. A. El-Gendy, D. C. Jiles, R. L. Hadimani
Article
Neurosciences
Hamzah Magsood, Farheen Syeda, Kathryn Holloway, Ivan C. Carmona, Ravi L. Hadimani
FRONTIERS IN HUMAN NEUROSCIENCE
(2020)
Article
Materials Science, Biomaterials
Hamzah Magsood, R. L. Hadimani
Summary: Transcranial magnetic stimulation (TMS) is a non-invasive technique used for diagnosis and treatment of neurological conditions, but the lack of realistic physical models has hindered the development of new protocols. A research team has developed an accurate brain and head phantom for testing TMS effects, created through segmentation of MRI images and filling with conductive polymer, with SEM images and voltage measurements confirming its anatomical accuracy.
MATERIALS SCIENCE & ENGINEERING C-MATERIALS FOR BIOLOGICAL APPLICATIONS
(2021)
Article
Chemistry, Inorganic & Nuclear
R. Galea, K. Moore
Summary: In this study, the solution of 225Ac was standardized using the TDCR method. The counting efficiencies were calculated to be approximately 500% for the NRC TDCR system. The relative uncertainty for the activity concentration was determined to be 0.25%. The measured half-life of 225Ac was found to be consistent with previous measurements.
APPLIED RADIATION AND ISOTOPES
(2024)
Article
Chemistry, Inorganic & Nuclear
N. C. Ramirez, S. M. Collins
Summary: In this paper, the authors determined the half-life of 68Ga using ionisation chambers measurements and HPGe gamma-ray spectrometry. They reviewed the current literature and identified possible causes of inconsistency within the dataset. The findings suggest that addressing these issues could lead to a significant improvement in future evaluations of the half-life.
APPLIED RADIATION AND ISOTOPES
(2024)
Article
Chemistry, Inorganic & Nuclear
C. P. Mano, C. Chapelle, Der Mesrobian Kabakian, H. Paradis, O. Delaune, L. Patryl
Summary: CEA/DAM is developing new beta-gamma measurement systems to enhance the reliability of the Comprehensive Nuclear Test Ban Treaty's verification regime. A new spectral unmixing algorithm for full-spectrum analysis was tested to improve analysis methods for nuclear activities with low statistics.
APPLIED RADIATION AND ISOTOPES
(2024)
Article
Chemistry, Inorganic & Nuclear
Junyoung Lee, Geunsub Kim, Hyegang Chang, Sangmin Lee, Sung-Joon Ye
Summary: The study applied the convolution/superposition method to calculate the dose distribution of boron neutron capture therapy and compared it with the Monte Carlo method. The results showed that the C/S method has a fast calculation speed and reasonable accuracy.
APPLIED RADIATION AND ISOTOPES
(2024)
Article
Chemistry, Inorganic & Nuclear
Victor H. Elvira, Marie-Christine Lepy, Yves Menesguen, Stephanie Melhem
Summary: In this study, a cryogenic electrical-substitution radiometer was utilized for the primary calibration of monochromatic photon beams at a synchrotron facility, in order to determine the intrinsic efficiency and dead layer thickness of an HPGe detector. This calibration method allowed for the calculation of efficiency up to 55 keV, where the active thickness of the detector is not a determining factor. Geometrical efficiency was also determined through measurements of a radioactive source at various distances.
APPLIED RADIATION AND ISOTOPES
(2024)
Article
Chemistry, Inorganic & Nuclear
Ali Pashazadeh, Hamid Reza Baghani, Mostafa Robatjazi, Prajit Kadavil
Summary: This study investigated the effect of patch source geometric parameters on the depth dose distribution in skin tissue through Monte Carlo simulation. The results showed that increasing the source-to-skin distance, patch thickness, and patch diameter will reduce the depth dose distribution, with the source-to-skin distance having the most significant impact on dose gradient.
APPLIED RADIATION AND ISOTOPES
(2024)
Article
Chemistry, Inorganic & Nuclear
Yueli Song, Fengqun Zhou, Yajuan Hao, Xiaopeng Zhang, Pengfei Ji, Yong Li
Summary: In this study, the cross section values of the 109Ag(n,2n)108mAg reaction at different neutron energies were measured using the activation technique and off-line gamma-ray spectrometry. The results were compared with experimental data, evaluated data from libraries, and theoretical values to validate their accuracy.
APPLIED RADIATION AND ISOTOPES
(2024)
Article
Chemistry, Inorganic & Nuclear
Zhongkai Fan, Tao Hu, Xiangming Cai, Ruomei Xie, Haoxuan Li, Fengdi Qin, Shoukang Qiu, Yanliang Tan, Jian Shan
Summary: The high-precision measurement of Rn-220 is crucial for assessing and preventing thoron radiological hazards. By adding a ZnS(Ag)-coated clapboard, the issue of reduced Rn-220 concentrations due to decreased air pressure can be addressed, leading to improved detection efficiency. Experimental and simulation results provide valuable references for establishing the Rn-220 calibration factor.
APPLIED RADIATION AND ISOTOPES
(2024)
Article
Chemistry, Inorganic & Nuclear
R. Han, Z. Chen, Y. Nie, B. Liu, G. Tian, X. Zhang, F. Shi, H. Sun, Z. Zhang, Y. Ding, X. Ruan, J. Ren, S. Zhang
Summary: The leakage neutron spectra of Lead samples were measured using a TOF technique, and MCNP simulations with different nuclear data libraries showed that JENDL-5.0 and JEFF-3.3 libraries have better agreement with experimental data. Differences in spectra mainly stem from variations in neutron reaction channels across the libraries, with ENDF/B-VIII.0 and CENDL-3.2 libraries being overestimated in certain energy ranges.
APPLIED RADIATION AND ISOTOPES
(2024)
Article
Chemistry, Inorganic & Nuclear
Nissren Tamam, Maryam Al Huwayz, Z. A. Alrowaili, Norah Alwadai, Khadijah Mohammedsaleh Katubi, Mohammed S. Alqahtani, I. O. Olarinoye, M. S. Al-Buriahi
Summary: This study investigates the radiation shielding properties and radiation protection applications of borotellurite glasses. The results show that the addition of TeO2 can enhance the glass's ability to absorb photons and fast neutrons, and effectively suppress photon buildup. These glasses also exhibit exceptional gamma radiation and fast neutron moderating abilities, making them suitable for designing lead-free, transparent, and efficient radiation protection structures.
APPLIED RADIATION AND ISOTOPES
(2024)
Article
Chemistry, Inorganic & Nuclear
S. Chasapoglou, M. Kokkoris, R. Vlastou, M. Diakaki, V. Michalopoulou, A. Kalamara, G. Gkatis, A. Stamatopoulos, M. Axiotis, S. Harissopulos, A. Lagoyannis, M. I. Savva, T. Vasilopoulou, C. Lederer-Woods, N. Patronis, K. Kaperoni
Summary: This study investigated the accuracy and limitations of theoretical corrections in neutron-induced reactions on isotopically enriched Ge targets. Experimental cross-section measurements were conducted on several reactions using Ge-nat and isotopically enriched Ge targets. The results showed that the methodology using isotopically enriched targets provided accurate results without the need for theoretical corrections.
APPLIED RADIATION AND ISOTOPES
(2024)
Article
Chemistry, Inorganic & Nuclear
P. G. Konstantinidis, G. S. Polymeris, E. Tsoutsoumanos, G. Kitis
Summary: This study investigates an altered version of an existing protocol to study the mechanisms and phenomena of stimulated luminescence. The protocol allows for the examination of recombination mechanisms and trapping parameters of the traps, as well as the observation of potential transitions between two different states.
APPLIED RADIATION AND ISOTOPES
(2024)
Article
Chemistry, Inorganic & Nuclear
Quanzhi Yu
Summary: This study obtained the broad neutron spectrum of the Atmospheric Neutron Irradiation Spectrometer (ANIS) through Monte Carlo simulation and provided an analytic expression. By calculating the Single Error Rate (SER) and ratio, the reliability of the ANIS neutron spectrum was evaluated.
APPLIED RADIATION AND ISOTOPES
(2024)
Article
Chemistry, Inorganic & Nuclear
D. Glavic Cindro, M. Korun, T. Petrovic, B. Vodenik, B. Zorko
Summary: In gamma-ray spectrometric measurements, the decision threshold is determined by the observed value of the measurand. However, this dependence restricts its application to measurements with non-expressive indications. To address this issue, a recalculation of the decision thresholds based on the peak widths corresponding to expressive indications is proposed.
APPLIED RADIATION AND ISOTOPES
(2024)