Results 101 to 110 of about 1,250,492 (368)

Passive Gamma-Ray and Neutron Imaging Systems for National Security and Nuclear Non-Proliferation in Controlled and Uncontrolled Detection Areas: Review of Past and Current Status

Sensors, 2019
Global concern for the illicit transportation and trafficking of nuclear materials and other radioactive sources is on the rise, with efficient and rapid security and non-proliferation technologies in more demand than ever.
Hajir Al Hamrashdi, Stephen D. Monk, David Cheneler   +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

Experimental and Theoretical Confirmation of Covalent Bonding in α‐Pu

Advanced Functional Materials, EarlyView.
From a combination of Reverse Monte Carlo dynamic rigid body fitting to the pair distribution functional and novel density functional approaches, the existence of covalent bonding is confirmed in α‐plutonium alongside other bonding types (i.e. mixed bonding schemes).
Alexander R. Muñoz, Matthew S. Cook, David C. Arellano, AM Milinda Abeykoon, Jeremy N. Mitchell, Sarah C. Hernandez, Eric D. Bauer, Christopher A. Mizzi, Boris Maiorov, Neil Harrison, W. Adam Phelan   +10 more
wiley   +1 more source

Neutrons and Gamma-Ray Dose Calculations in Subcritical Reactor Facility Using MCNP

Atoms, 2016
In nuclear experimental, training and teaching laboratories such as a subcritical reactor facility, huge measures of external radiation doses could be caused by neutron and gamma radiation.
Ned Xoubi
doaj   +1 more source

Neutron total cross section measurements of gold and tantalum at the nELBE photoneutron source

, 2013
Neutron total cross sections of $^{197}$Au and $^\text{nat}$Ta have been measured at the nELBE photoneutron source in the energy range from 0.1 - 10 MeV with a statistical uncertainty of up to 2 % and a total systematic uncertainty of 1 %.
Bemmerer, Daniel, Beyer, Roland, Birgersson, Evert, Elekes, Zoltan, Ferrari, Anna, Grosse, Eckart, Hannaske, Roland, Junghans, Arnd, Kempe, Mathias, Kögler, Toni, Marta, Michele, Massarczyk, Ralph, Matic, Andrija, Schramm, Georg, Schwengner, Ronald, Wagner, Andreas   +15 more
core   +1 more source

Optical emission from a kilonova following a gravitational-wave-detected neutron-star merger [PDF]

Nature, 2017
The merger of two neutron stars has been predicted to produce an optical–infrared transient (lasting a few days) known as a ‘kilonova’, powered by the radioactive decay of neutron-rich species synthesized in the merger.
I. Arcavi, G. Hosseinzadeh, D. Howell, C. McCully, D. Poznanski, D. Kasen, J. Barnes, M. Zaltzman, S. Vasylyev, D. Maoz, S. Valenti   +10 more
semanticscholar   +1 more source

Fast Neutron Detector Based on Hybrid 2D Perovskite Thin Films

Advanced Functional Materials, EarlyView.
This work presents the direct detection of fast neutrons using flexible hybrid 2D perovskite (PEA2PbBr4) thin‐film detectors. Thanks to their high low‐Z elements content and good charge transport, these materials enable efficient neutron detection. The thin film configuration allowed the operation at low voltage, and offer scalability, flexibility, and
Ilaria Fratelli, Felix Pino, Laura Basiricò, Giulia Napolitano, Jessica Carolina Delgado, Sara Cepić, Andrea Ciavatti, Sandra Moretto, Gianluigi Maggioni, Marco Cinausero, Sara Maria Carturan, Beatrice Fraboni   +11 more
wiley   +1 more source

Research of neutron interaction with matter under high density interaction. Part II. The experimental research dependence of neutron cross section from density interactions [PDF]

Ядерна фізика та енергетика, 2012
Research of neutron interactions with the matter under density interactions (DI) up to ~109 cm-2 · s-1, were provided with aim of revelation of possible dependence neutron cross section from DI.
Yu. G. Shchepkin, V. I. Slisenko, E. A. Pavlenko, T. A. Kostyuk   +3 more
doaj  

Statistical Uncertainty in Quantitative Neutron Radiography

, 2017
We demonstrate a novel procedure to calibrate neutron detection systems commonly used in standard neutron radiography. This calibration allows determining the uncertainties due to Poisson-like neutron counting statistics for each individual pixel of a ...
Antognini, Aldo, Eggenberger, Andreas, Kaestner, Anders P., Kirch, Klaus, Piegsa, Florian M., Wichmann, Gunther   +5 more
core   +1 more source

Search for neutron–mirror neutron oscillations in a laboratory experiment with ultracold neutrons [PDF]

Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2009
Mirror matter is considered as a candidate for dark matter. In connection with this an experimental search for neutron - mirror neutron (nn') transitions has been carried out using storage of ultracold neutrons in a trap with different magnetic fields. As a result, a new limit for the neutron - mirror neutron oscillation time has been obtained, tau_osc
Evgenii B. Aleksandrov, S. P. Dmitriev, A. G. Kharitonov, I. Krasnoschekova, A. K. Fomin, P. Geltenbort, O. M. Zherebtsov, M. S. Lasakov, G. E. Shmelev, O. Zimmer, N. A. Dovator, V. E. Varlamov, A. Murashkin, A. P. Serebrov, A. V. Vassiljev   +14 more
openaire   +3 more sources