Results 11 to 20 of about 3,228 (172)

Solid-state dosimeters have rendered ionization chambers obsolete for routine diagnostic X-ray quality control. [PDF]

J Appl Clin Med Phys
ABSTRACT Today's diagnostic medical physicist finds a broad variety of instruments available to make the numerous quality control (QC) measurements needed for routine equipment evaluations. One of the distinguishing features of different options is the availability of multi‐purpose solid‐state detectors (SSD) and application‐specific ion chambers (IC ...
Goode AR, Wunderle KA, Jordan DW.
europepmc   +2 more sources

Continuing Professional Development - Medical Imaging. [PDF]

J Med Radiat Sci
Journal of Medical Radiation Sciences, Volume 73, Issue 2, Page 233-234, June 2026.
europepmc   +3 more sources

Development and validation of a 3D printed phantom for image quality assessment in fluoroscopy. [PDF]

J Appl Clin Med Phys
Abstract Background Low‐contrast detectability is a key image‐quality parameter in fluoroscopy, directly influencing diagnostic accuracy and patient safety. Commercial phantoms such as the CDRAD provide reliable assessments but are costly and lack flexibility for routine use. Purpose To develop and validate a low‐cost 3D‐printed phantom for fluoroscopy
Marques TGS, Pina DR.
europepmc   +2 more sources

Deriving target exposure indices for common radiography exams based on automatic exposures of flat-field phantoms. [PDF]

J Appl Clin Med Phys
Abstract Background The IEC exposure index (EI), deviation index (DI), and target exposure index (EIT), represent critical standardized metrics for the evaluation of exposure and quality in radiographic imaging. Purpose This work develops and validates a systematic procedure to estimate the EIT for eight of the most common radiography imaging protocols
Hoerner M, Marshall EL, Hulme K, Tao A, Alshehri S, AlKhazzam S, Long Z, Macdonald E, Scilla K, Tsalafoutas I.   +9 more
europepmc   +2 more sources

Copper at ancient Kerma: A diachronic investigation of alloys and raw materials

Advances in Archaeomaterials, 2022
This paper describes the first comprehensive study of metal artefacts found at ancient Kerma, Sudan. Covering a period of several millennia, it investigates the development of copper alloy recipes as well as metal provenance through the trace element and
Frederik W Rademakers, Georges Verly, Patrick Degryse   +2 more
exaly   +3 more sources

Refining imaging parameters for dual-energy cone-beam computed tomography in image-guided radiation therapy. [PDF]

J Appl Clin Med Phys
Abstract Purpose To develop a dose estimation method for virtual monoenergetic images (VMIs) derived from sequential dual‐energy (DE) cone‐beam computed tomography (CBCT), enhancing image quality while reducing imaging dose. The goal is to generate VMIs with lower imaging dose than standard CBCT for future clinical applications.
Kang H, Keeler A, Georgesen M, Luce J, Nguyen H, Lehmann M, Gros S, Roeske JC.   +7 more
europepmc   +2 more sources

Impact of Ceiling Suspended Shield Size on Primary Operator Radiation Dose During Coronary Angiography and Intervention. [PDF]

J Med Radiat Sci
Reducing radiation exposure to staff performing coronary angiography and intervention is an occupational health and safety priority for hospitals. We demonstrate that a larger lead acrylic shield, with lead rubber pleats on the lower edge will reduce radiation exposure to the cardiologist performing the procedure by approximately 40%. We recommend that
Crowhurst JA, Andersen E, Savage M, Tse J, Murdoch D, Walters D, Dautov R.   +6 more
europepmc   +2 more sources

Exposure Time Dependence of Operators’ Head Entrance Air Kerma in Interventional Radiology Measured by TLD-100H Chips [PDF]

Sensors
Interventional radiology offers minimally invasive procedures guided by real-time imaging, reducing surgical risks and enhancing patient recovery. While beneficial to patients, these advancements increase occupational hazards for physicians due to ...
Rocco Mottareale, Francesco Manna, Patrizio Antonio Carmosino, Francesco Fiore, Marco Correra, Salvatore Stilo, Luca Tarotto, Mariagabriella Pugliese   +7 more
doaj   +2 more sources

Advancing iris melanoma brachytherapy: Eye plaque models for Monte Carlo simulations and 3D dosimetric datasets. [PDF]

Med Phys
Abstract Purpose To develop and benchmark eye plaque models for Monte Carlo (MC) simulation of iris melanoma brachytherapy and to develop a database of 3D dose distributions for the iris plaques containing 103Pd${}^{103}{\rm Pd}$, 125I${}^{125}{\rm I}$, and 131Cs${}^{131}{\rm Cs}$ seeds.
Djedouani M, Viner A, Fletcher EM, Thomson RM.   +3 more
europepmc   +2 more sources

Research on the Influence of Negative KERMA Factors on the Power Distribution of a Lead-Cooled Fast Reactor

Journal of Nuclear Engineering, 2023
The accurate calculation of reactor core heating is vital for the design and safety analysis of reactor physics. However, negative KERMA factors may be produced when processing and evaluating libraries of the nuclear data files ENDF/B-VII.1 and ENDF/B ...
Guanqun Jia, Xubo Ma, Teng Zhang, Kui Hu
doaj   +1 more source