Results 81 to 90 of about 497,213 (338)

Calculation of excess dose to the eye phantom due to a distanced shielding for electron therapy in head and neck cancers

Journal of Medical Signals and Sensors, 2012
For superficial lesions, the electrons may be used for radiation therapy. The high energy photons and electrons are produced by a Linear accelerator (Linac). Many of electron fields need the shielding of normal or critical organs.
Keyvan Jabbari, Mahnaz Roayaei, Hosein Saberi   +2 more
doaj  

Increasing the radioshielding properties of construction materials in the microwave range [PDF]

Нанотехнологии в строительстве
Introduction. The intensive development of technology in the modern world is accompanied by the origin of new types of manmade hazards, one of which is microwave radiation.
Daniil S. Podgorny, Mikhail Y. Elistratkin, Diana O. Bondarenko, Valeria V. Strokova   +3 more
doaj   +1 more source

Influence of an Argon/Silane Atmosphere on the Temperature of a Thermal Plasma

Advanced Engineering Materials, EarlyView.
The influence of a silane‐doped argon atmosphere on the chemical composition and temperature of a thermal nontransferring argon plasma is investigated using optical emission spectroscopy. As a result of the high amount of free electrons resulting from the stepwise ionization and dissociation of the silane molecule, even a silane addition of 0.01 vol ...
Lena Kreie, David Kramer, Thomas Scheithauer, Hans Jürgen Maier, Thomas Hassel   +4 more
wiley   +1 more source

Monte Carlo Simulation-Based Investigation of Epoxy/Dysprosium Composites for X-ray and Gamma-ray Shielding Across Medicine Energy Ranges [PDF]

Journal of Advanced Materials in Engineering
Introduction and Objectives: Ionizing radiation protection is essential for minimizing the harmful effects of radiation exposure. While lead has traditionally been used as a shielding material due to its high density, its toxicity and physical ...
Mohammadreza Alipoor, Mahdi Eshghi, Ruhollah Razavi   +2 more
doaj   +1 more source

Distribution of Electrical Resistivity in Single Carbon Fiber Filaments and Its Correlation With Tensile Modulus

Advanced Engineering Materials, EarlyView.
A statistical framework is applied to quantify the distribution of electrical resistivity among individual filaments of two commercially available carbon fiber types. Correlations between filament resistivity, tensile modulus, and diameter are examined and complemented by TEM analysis to provide new insight into filament‐level variability relevant for ...
Nils Wieja, Daniel Sebastian Wolz, Philip Johannes Steinbild, Markus Löffler, Darius Pohl, Jan Wolf, Anja Winkler, Thomas Behnisch, Bernd Rellinghaus, Maik Gude   +9 more
wiley   +1 more source

Implementation of automated radiopharmaceutical dispenser with integrated radiation shielding

Journal of Associated Medical Sciences, 2009
During the preparation of radiopharmaceutical, nuclear medicine staff receive radiation doses to hands much higher than the other parts of the body.
Somsakul Thumvijit, Winit Choiprasert
doaj  

IEC Fusor Mobile Shielding Unit [PDF]

, 2017
The VCU Inertial Electrostatic Confinement (IEC) Fusor Senior Design Project provides Virginia Commonwealth University (VCU) with a mobile fusor complete with the necessary shielding to protect operators as well as the general public from potentially ...
Balducci, Dominic, Lawson, John, McDaniels, Bryce, Rodi, Robert, Simmons, William   +4 more
core   +1 more source

Unique Performance Considerations for Printable Organic Semiconductor and Perovskite Radiation Detectors: Toward Consensus on Best Practice Evaluation

Advanced Functional Materials, EarlyView.
A lack of standard approaches for testing and reporting the performance of metal halide perovskites and organic semiconductor radiation detectors has resulted in inconsistent interpretation of performance parameters, impeding progress in the field. This Perspective recommends key metrics and experimental details, which are suggested for reporting in ...
Jessie A. Posar, Matthew Large, Andrea Ciavatti, Laura Basiricò, Beatrice Fraboni, Paul J. Sellin, Attila J. Mozer, Marco Petasecca, Matthew J. Griffith   +8 more
wiley   +1 more source

Microwave shielding of transparent and conducting single-walled carbon nanotube films

, 2007
The authors measured the transport properties of single-walled carbon nanotube (SWCNT) films in the microwave frequency range from 10 MHz to 30 GHz by using the Corbino reflection technique from temperatures of 20-400 K.
Fuhrer M. S., George Gruner, Hua Xu, Liangbing Hu, Steven M. Anlage   +4 more
core   +1 more source

Ferrocene Derivatives Enable Ultrasensitive Perovskite Photodetectors with Enhanced Reverse Bias Stability

Advanced Functional Materials, EarlyView.
Novel ferrocene derivatives (e.g., FcPhc2) are used as an ultrathin layer hole‐blocking layer, reducing hole injection from the Ag contact. This results in an ultralow noise spectral density of 1.2 × 10−14 A Hz−1/2, and a high specific detectivity of 8.1 × 1012 Jones at −0.5 V.
Eunyoung Hong, William D. J. Tremlett, Lucy Hart, Beier Hu, Zhuoran Qiao, Patipan Sukpoonprom, Sarah Fearn, Edoardo Angela, Matilde Brunetta, Demosthenes C. Koutsogeorgis, Nikolaos Kalfagiannis, Davide Nodari, Martyn A. McLachlan, Piers R. F. Barnes, Artem A. Bakulin, Nicholas J. Long, Nicola Gasparini   +16 more
wiley   +1 more source