Results 31 to 40 of about 103,272 (333)

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

The influence of defects on magnetic properties of fcc-Pu [PDF]

, 2009
The influence of vacancies and interstitial atoms on magnetism in Pu has been considered in frames of the Density Functional Theory (DFT). The relaxation of crystal structure arising due to different types of defects was calculated using the molecular ...
A B Shick, A O Shorikov, A. O. Shorikov, C T Chen, I V Solovyev, J Bouchet, J C Lashley, J G Tobin, L D Landau, M I Baskes, M I Baskes, M Singh, M. A. Korotin, O Gunnarsson, O K Andersen, P Söderlind, P Söderlind, Ph. A. Sapozhnikov, R H Heffner, R H Heffner, S M Valone, S V Verkhovkii, S Verkhovskii, S Y Savrasov, V Dremov, V I Anisimov, V V Dremov, V V Dremov, V V Dremov, V. I. Anisimov, V. V. Dremov   +30 more
core   +1 more source

Methodology for the Preparation and Validation of Plutonium Age Dating Materials.

Analytical Chemistry, 2018
The present work describes a method for the preparation and validation of plutonium age dating reference materials. The test samples prepared in this context could be used to validate experimental protocols for determining the production date of ...
Z. Varga, A. Nicholl, J. Zsigrai, M. Wallenius, K. Mayer   +4 more
semanticscholar   +1 more source

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

Plutonium-Xenon systematics of Angrites [PDF]

, 2003
Introduction: Angrites are igneous meteorites that crystallized very early in the solar system, ~10 Ma after CAIs, as also implied by the presence of now extinct short-lived radionuclides such as 53Mn, 146Sm and 244Pu [1].
Busemann, H., Eugster, O.
core  

Plutonium management policy in the United Kingdom: The need for a dual track strategy

, 2017
The United Kingdom holds the largest stockpile of separated civil plutonium in the world, projected to reach 140 t, at the end of this decade, when reprocessing operations are complete.
N. Hyatt
semanticscholar   +1 more source

The valence-fluctuating ground state of plutonium [PDF]

Science Advances, 2015
Determination of plutonium’s fluctuating electronic and magnetic ground state resolves long-standing “missing” magnetism puzzle. A central issue in material science is to obtain understanding of the electronic correlations that control complex materials.
M. Janoschek, Pinaki Das, B. Chakrabarti, D. Abernathy, M. Lumsden, J. Lawrence, J. Thompson, G. Lander, J. Mitchell, S. Richmond, M. Ramos, F. Trouw, Jian-Xin Zhu, K. Haule, G. Kotliar, E. Bauer   +15 more
semanticscholar   +1 more source