Results 21 to 30 of about 68,051 (269)

Computational and experimental forensics characterization of weapons-grade plutonium produced in a thermal neutron environment

Nuclear Engineering and Technology, 2018
The growing nuclear threat has amplified the need for developing diverse and accurate nuclear forensics analysis techniques to strengthen nuclear security measures.
Jeremy M. Osborn, Kevin J. Glennon, Evans D. Kitcher, Jonathan D. Burns, Charles M. Folden, III, Sunil S. Chirayath   +5 more
doaj   +1 more source

The Debye-Waller factor of stabilized delta-Pu

, 2007
The Debye-Waller factor has been calculated for stabilized delta-phase plutonium with 5% aluminum. A quasi-harmonic Born-von Karman force model with temperature dependent phonon frequencies was used to calculate the mean-square thermal atomic ...
Calder, Graf, Graf, Jeong, Jeong, Lashley, Lawson, Lawson, Lawson, Matthias J. Graf, McQueeney, Migliori, Squires, Wong, Wong   +14 more
core   +1 more source

Plutonium in the Arctic Marine Environment — A Short Review

The Scientific World Journal, 2004
Anthropogenic plutonium has been introduced into the environment over the past 50 years as the result of the detonation of nuclear weapons and operational releases from the nuclear industry. In the Arctic environment, the main source of plutonium is from
Lindis Skipperud
doaj   +1 more source

Computational model and physical and technical factors determining the plutonium proliferation resistance [PDF]

Nuclear Energy and Technology, 2018
Since the closed nuclear fuel cycle suggests that plutonium is extracted from irradiated fuel and is recycled in nuclear reactors as part of the loaded fuel, proliferation resistance of fissile materials (plutonium) is becoming a problem of a practical ...
Yevgeny Kulikov, Gennady Kulikov, Vladimir Apse, Anatoly Shmelev, Nikolay Geraskin   +4 more
doaj   +3 more sources

Kinetic Study and Process Optimization of Plutonium Barrier Units for Enhanced Plutonium Stripping in the PUREX Process

Separations
In the PUREX (the plutonium uranium reduction extraction) process, a plutonium barrier unit (1BXX) is used to achieve deep plutonium stripping. According to the operating experience of the French reprocessing plant, after the separation of uranium and ...
Haowei Zhu, Qi Chen, Chen Zuo, Tianchi Li, Jieqiong Yuan, Ziqian Zhao, Taihong Yan, Weifang Zheng   +7 more
doaj   +1 more source

Plutonium dioxide particle imaging using a high-resolution alpha imager for radiation protection

Scientific Reports, 2021
The internal exposure of workers who inhale plutonium dioxide particles in nuclear facilities is a crucial matter for human protection from radiation. To determine the activity median aerodynamic diameter values at the working sites of nuclear facilities
Yuki Morishita, Shunsuke Kurosawa, Akihiro Yamaji, Masateru Hayashi, Makoto Sasano, Taisuke Makita, Tetsushi Azuma   +6 more
doaj   +1 more source

Nature of non-magnetic strongly-correlated state in delta-plutonium [PDF]

, 2005
Ab-initio relativistic dynamical mean-field theory is applied to resolve the long-standing controversy between theory and experiment in the "simple" face-centered cubic phase of plutonium called delta-Pu.
A. B Shick, A. I Lichtenstein, Anisimov V. I., Baclet N., Curro N. J., F Wastin, Freeman A. J., G. H Lander, Heffner R. H., Johansson B., Kamyshenko V. V., Katsnelson M. I., L Havela, L. V Pourovskii, M. I Katsnelson, Sechovsky V., T Gouder, V Drchal   +17 more
core   +2 more sources

The Plutonium Temperature Effect Program

Journal of Nuclear Engineering, 2023
Various theoretical studies have shown that highly diluted plutonium solutions could have a positive temperature effect, but up to now, no experimental program has confirmed this effect. The French Plutonium Temperature Effect Experimental Program (or PU+
Nicolas Leclaire, Vaibhav Jaiswal
doaj   +1 more source

Sintering characteristics and properties of PuS and PuP are determined [PDF]

, 1969
Report on the preparation of plutonium monosulphide and plutonium monophosphide includes a description of the sintering characteristics and properties of these high-temperature compounds.
Kruger, O. L., Moser, J. B.
core   +1 more source

Magnetic state of plutonium ion in metallic Pu and its compounds

, 2005
By LDA+U method with spin-orbit coupling (LDA+U+SO) the magnetic state and electronic structure have been investigated for plutonium in \delta and \alpha phases and for Pu compounds: PuN, PuCoGa5, PuRh2, PuSi2, PuTe, and PuSb.
A. Georges, A. Hasegawa, A. J. Arko, A. L. Kutepov, A. O. Shorikov, A. V. Lukoyanov, B. Johansson, B. R. Cooper, B. R. Cooper, D. A. Young, D. J. Singh, F. Anselin, G. H. Lander, G. Kotliar, G. R. Stewart, G. van der Laan, J. D. Thompson, J. P. Desclaux, J. P. Sanchez, J. R. Naegele, J. R. Naegele, J. van Ek, J.-C. Griveau, K. Held, L. D. Landau, L. Nordström, L. Petit, M. A. Korotin, M. I. Katsnelson, M. Mendik, M. Richter, M. S. S. Brooks, M. Taube, P. E. A. Turchi, P. M. Oppeneer, S. E. Olsen, S. S. Hecker, V. I. Anisimov, W. M. Temmerman   +38 more
core   +1 more source