Results 21 to 30 of about 718 (113)

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

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

Effect of underground water composition on the chemical species distribution of plutonium

He jishu
BackgroundPlutonium is an important element for nuclear energy production and radioactive waste disposal, and evaluating its species distribution in natural water systems is essential for investigating its migration behavior.
ZHENG Qi, WANG Fan, ZHANG Fan, LI Cong, CHEN Lifeng, WEI Yuezhou   +5 more
doaj   +1 more source

Plutonium (IV) Quantification in Technologically Relevant Media Using Potentiometric Sensor Array

Sensors, 2020
The quantification of plutonium in technological streams during spent nuclear fuel (SNF) reprocessing is an important practical task that has to be solved to ensure the safety of the process.
Julia Savosina, Marina Agafonova-Moroz, Irina Yaroshenko, Julia Ashina, Vasily Babain, Alexander Lumpov, Andrey Legin, Dmitry Kirsanov   +7 more
doaj   +1 more source

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

Dynamics of plutonium excretion with urine and feces using cases of acute inhalation intake of industrial plutonium compounds as an example

Радиационная гигиена
Monitoring internal doses from plutonium is most effectively accomplished by an indirect method based on the interpretation of nuclide activity measurements in excreta using biokinetic and dosimetric models.
A. B. Sokolova, A. V. Efimov, M. V. Ishunina, S. A. Sypko   +3 more
doaj   +1 more source

Time dependent heat transfer of proliferation resistant plutonium

Nuclear Engineering and Technology, 2019
Increasing proliferation resistance of plutonium by way of increased 238Pu content is of interest to the nuclear nonproliferation and international safeguards community.
Cody Lloyd, Ravi Hadimani, Braden Goddard   +2 more
doaj   +1 more source

Speciation of uranium and radionuclides in the bottom sediments of premises 001/3 of the "Shelter" object

Ядерна фізика та енергетика, 2021
The results of experimental determination of the forms of uranium and radionuclides 90Sr, 137Cs, 154Eu, 238Pu, 239+240Pu, 241Am, and 244Cm in the bottom sediments of the premises 001/3 of the "Shelter" object are presented.
O. O. Odintsov, L. A. Palamar, L. B. Chikur   +2 more
doaj   +1 more source

Microbial community dynamics and cycling of plutonium and iron in a seasonally stratified and radiologically contaminated pond

Scientific Reports, 2023
Plutonium (Pu) cycling and mobility in the environment can be impacted by the iron cycle and microbial community dynamics. We investigated the spatial and temporal changes of the microbiome in an iron (Fe)-rich, plutonium-contaminated, monomictic ...
Nancy Merino, Naomi L. Wasserman, Fanny Coutelot, Daniel I. Kaplan, Brian A. Powell, Yongqin Jiao, Annie B. Kersting, Mavrik Zavarin   +7 more
doaj   +1 more source

In situ beam reduction of Pu(IV) and Bk(IV) as a route to trivalent transuranic coordination complexes with hydroxypyridinone chelators

Journal of Synchrotron Radiation, 2022
The solution-state interactions of plutonium and berkelium with the octadentate chelator 3,4,3-LI(1,2-HOPO) (343-HOPO) were investigated and characterized by X-ray absorption spectroscopy, which revealed in situ reductive decomposition of the tetravalent
Korey P. Carter, Jennifer N. Wacker, Kurt F. Smith, Gauthier J.-P. Deblonde, Liane M. Moreau, Julian A. Rees, Corwin H. Booth, Rebecca J. Abergel   +7 more
doaj   +1 more source