Results 41 to 50 of about 864,018 (322)

Calculation of Dose Distribution in Neutron Brachytherapy Using 252-Cf Source Through the Monte Carlo Simulation and Comparison with Experimental Data [PDF]

مجله علوم و فنون هسته‌ای, 2018
Detailed recognition of dose distribution around the brachytherapy sources in order to create appropriate plans for treatment of cancer is very important.
Gh Izadi Vasafi, M. M Firoozabadi, I Jabari   +2 more
doaj   +1 more source

YBa₂Cu₃O_y Superconducting Ceramics Incorporated with Different Types of Oxide Materials as Promising Radiation Shielding Materials: Investigation of The Structure, Morphology, and Ionizing Radiations Shielding Performances

Nanomaterials, 2022
New series of YBCO ceramics samples doping with different oxides such as SiO2, WO3, Al2O3, and TiO2 were fabricated to study the ionizing radiation shielding properties.
Essia Hannachi, Yassine Slimani, M. H. A. Mhareb, M. I. Sayyed, M. Kh. Hamad, Y. S. Alajerami, Nidal Dwaikat, Munirah A. Almessiere, Abdulhadi Baykal   +8 more
doaj   +1 more source

Visualization techniques of grease fluidity

Frontiers in Mechanical Engineering
Energy-saving technology has become increasingly significant as one of the carbon-neutral options for suppressing recent global warming. Grease-lubricated bearings have been used in various automotive and industrial machinery, requiring low torque and ...
Kazumi Sakai
doaj   +1 more source

Large-Scale Boron-Lined Neutron Detection Systems as a 3He Alternative for Cosmic Ray Neutron Sensing

Frontiers in Water, 2020
Cosmic-Ray neutron sensors are widely used to determine soil moisture on the hectare scale. Precise measurements, especially in the case of mobile application, demand for neutron detectors with high counting rates and high signal-to-noise ratios.
Jannis Weimar, Markus Köhli, Markus Köhli, Christian Budach, Ulrich Schmidt   +4 more
doaj   +1 more source

A Focusing Supermirror for Time-of-Flight Grazing-Incidence Small-Angle Neutron Scattering Measurement

Quantum Beam Science
This study developed a neutron-beam-focusing supermirror for grazing-incidence small-angle neutron scattering (GISANS) measurements. We adopted point-to-point beam focusing based on an ellipse whose two foci correspond to a virtual point source and a ...
Dai Yamazaki, Ryuji Maruyama, Hiroyuki Aoki, Takayasu Hanashima, Kazuhiro Akutsu-Suyama, Noboru Miyata, Kazuhiko Soyama   +6 more
doaj   +1 more source

Determination of the Theoretical Spectrum of Gamma Emission Generated by DGNAA in Samples of Ashes of Thermal Power Plants

Proceedings, 2018
In this article the methodology for the determination of the theoretical gamma spectrum originated by applying DGNAA (delayed gamma neutron analysis activation) techniques for the elemental analysis of ash from thermal power plants is exposed.
German Marcos-Robredo, M. Pilar Castro-García, Miguel Ángel Rey-Ronco, Teresa Alonso-Sánchez   +3 more
doaj   +1 more source

A Study on Radiation Level at the Treatment Plane Due to Induced Activity in Linear Accelerator Head

Journal of Medical Physics
Background: The induced activity is produced in the target, monitor chamber, flattening filter (FF), collimating jaws, etc., when a high-energy photon beam is utilized for radiation therapy.
Sonal Varshney, Lalit Kumar, Umesh K. Dwivedi, Pradeep Narayan   +3 more
doaj   +1 more source

Studies of Ancient Russian Cultural Objects Using the Neutron Tomography Method

Journal of Imaging, 2018
Neutron radiography and tomography is a non-destructive method that provides detailed information about the internal structure of cultural heritage objects.
Sergey Kichanov, Irina Saprykina, Denis Kozlenko, Kuanysh Nazarov, Evgenii Lukin, Anton Rutkauskas, Boris Savenko   +6 more
doaj   +1 more source

Baryon breakdown in black hole

Frontiers in Physics, 2022
According to relativity theory, a black hole is a distinct region in spacetime; according to astronomical observations, it is a celestial body transforming matter into high-energy jets.
Lauri Lehmonen, Arto Annila
doaj   +1 more source

Multi-messenger observations of neutron rich matter

, 2011
Neutron rich matter is central to many fundamental questions in nuclear physics and astrophysics. Moreover, this material is being studied with an extraordinary variety of new tools such as the Facility for Rare Isotope Beams (FRIB) and the Laser ...
Horowitz, C. J.
core   +2 more sources