Results 81 to 90 of about 2,244,912 (267)

Unintended and accidental medical radiation exposures in radiology: guidelines on investigation and prevention [PDF]

, 2017
This paper sets out guidelines for managing radiation exposure incidents involving patients in diagnostic and interventional radiology. The work is based on collation of experiences from representatives of international and national organizations for ...
Damilakis, John., Ebdon-Jackson, Steve, Frush, Donald P., Loose, R., Mahesh, M., Martin, Colin J., Ng, K., Vano, Eliseo, Vassileva, J.   +8 more
core   +1 more source

Review of the anatomical basis for predicting plutonium alpha particle radiation induced osteogenic cancers

The Anatomical Record, EarlyView.
Abstract Plutonium was discovered and first synthesized in the early 1940's. Several isotopes of plutonium are used in nuclear technologies, 238Pu for heat generation and 239Pu for energy production and weapons. Both isotopes emit alpha particles, which pose a significant radiation hazard when incorporated into the body.
Scott C. Miller
wiley   +1 more source

Comparison of EBT and EBT3 RadioChromic Film Usage in Parotid Cancer Radiotherapy

Journal of Biomedical Physics and Engineering, 2016
Background: EBT and EBT3 radioChromic films have been used in radiotherapy dosimetry for years. Objective: The aim of the current study is to compare EBT and EBT3 radioChromic films in dosimetry of radiotherapy fields for treatment of parotid cancer.
Bahreyni Toossi M. T, Khorshidi F., Ghorbani M., Mohamadian N., Davenport D.   +4 more
doaj  

Lead‐free transparent nanocomposite for efficient clinical X‐ray shielding

BMEMat, EarlyView.
A lead‐free nanocomposite of LaF3 nanoparticles exhibits a high optical transparency of 86% with a heavy loading of up to 70 wt%, which enables the design of radiation shielding goggles for interventional surgeons in real clinical scenarios. Abstract The increasing use of X‐ray imaging in the medical field has generated a growing need for efficient ...
Xiangzhou Zhang, Yeqi Liu, Xiaojia Wang, Nik Ahmad Nizam Nik Malek, Wan Hairul Anuar Kamaruddin, Liang‐Jin Xu, Yaxing Wang, Zhaolai Chen, Yuhai Zhang   +8 more
wiley   +1 more source

Adaptive calibration of Gafchromic EBT3 film using generalized additive neural networks

Scientific Reports
In radiation therapy, precise dose distribution is essential for minimizing damage to normal tissues. Gafchromic EBT3 film is widely used to assure the quality of two-dimensional dosimetry but requires frequent recalibrations due to changes in ...
Liyun Chang, Pang-Yu Chen, Shyh-An Yeh, Chen-Lin Kang, Chun-Ting Su, Tsair-Fwu Lee   +5 more
doaj   +1 more source

RADIOCHROMIC FILM CALIBRATION FOR DOSIMETRY IN CHEST CT SCANS

Brazilian Journal of Radiation Sciences, 2021
Phantoms can be used as quality control objects in computed tomography (CT) imaging and dosimetry in specific regions of interest. By means of phantom tests, alternatives can be created to optimize the acquisition protocols and thus modify the ...
Mauricio Gomez, Arnaldo Prata Mourão
doaj   +1 more source

Evaluation and implementation of triple-channel radiochromic film dosimetry in brachytherapy. [PDF]

J Appl Clin Med Phys, 2014
The measurement of dose distributions in clinical brachytherapy, for the purpose of quality control, commissioning or dosimetric audit, is challenging and requires development. Radiochromic film dosimetry with a commercial flatbed scanner may be suitable,
Palmer AL, Bradley D, Nisbet A.
europepmc   +2 more sources

A quality assurance phantom for electronic portal imaging devices [PDF]

, 2011
Electronic portal imaging device (EPID) plays an important role in radiation therapy portal imaging, geometric and dosimetric verification. Consistent image quality and stable radiation response is necessary for proper utilization that requires routine ...
Cao, Minsong, Cheng, Chee-Wai, Das, Indra J., Johnstone, Peter A.S., Misic, Vladimir, Scheuring, Klaus, Schüle, Edmund   +6 more
core   +1 more source

Metal–Support Interaction Between Titanium Oxynitride and Pd Nanoparticles as a Tool for Tuning the Selectivity of Electrocatalytic Hydrogenation of Furfural

ChemElectroChem, EarlyView.
Electrocatalytic hydrogenation (ECH) of furfural under acidic conditions is examined using Pd/C and Pd‐TiONx/GO catalysts. Differences in redox behavior and adsorption properties are observed. Pd/C exhibits higher selectivity toward furfuryl alcohol, while Pd‐TiONx/GO favors 2‐methylfuran formation. Metal–support interactions and surface properties are
Nik Maselj, Jan Trputec, Martin Šala, Kristina Mervič, Ivan Marić, Francisco Ruiz‐Zepeda, Marjan Bele, Vasko Jovanovski, Nejc Hodnik, Primož Jovanovič   +9 more
wiley   +1 more source

The Impact of X‐ray Damage in Chemical Crystalline Materials and New Opportunities for Small Molecule Serial Crystallography

Chemistry – A European Journal, EarlyView.
The impact of X‐ray damage in chemical crystals was minimised by the introduction of area detectors in the late 20th‐century. Now, ever‐brighter X‐ray sources are re‐establishing X‐ray damage as a key challenge. This article reviews recent observations of X‐ray‐induced processes in chemical samples and discusses state‐of‐the‐art methodologies for their
Sam G. Lewis, Mark R. Warren, Lauren E. Hatcher   +2 more
wiley   +1 more source