Articles with "transmutation" as a keyword



Transmutation Operators Associated With an Angular SchröDinger‐Type Operator

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Published in 2025 at "Mathematical Methods in the Applied Sciences"

DOI: 10.1002/mma.11124

Abstract: In this work, we study the time‐independent homogeneous Schrödinger equation Δ−q(θ)r2u=0$$ \left(\Delta -\frac{q\left(\theta \right)}{r^2}\right)u=0 $$ in a bounded domain Ω⊂ℂ$$ \Omega \subset \mathbb{C} $$ . We assume the potential q$$ q $$ is a continuously… read more here.

Keywords: operator; schr dinger; schr; transmutation ... See more keywords

Electron accelerator driven system for transmutation studies

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Published in 2018 at "Journal of Radioanalytical and Nuclear Chemistry"

DOI: 10.1007/s10967-018-6218-1

Abstract: An accelerator driven system has been studied by irradiation with 20 MeV electrons. Slow, intermediate and fast neutrons were measured by activation and Solid State Track Detectors. The total neutrons emitted from the target were 0.005… read more here.

Keywords: driven system; transmutation; accelerator driven;

Minor actinides transmutation on pressurized water reactor burnable poison rods

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Published in 2017 at "Annals of Nuclear Energy"

DOI: 10.1016/j.anucene.2017.06.039

Abstract: Abstract Minor actinides are the primary contributors to long term radiotoxicity in spent fuel. The majority of commercial reactors in operation in the world are PWRs, so to study the minor actinide transmutation characteristics in… read more here.

Keywords: burnable poison; minor actinides; water; poison rods ... See more keywords

A comparison of curium, neptunium and americium transmutation feasibility

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Published in 2018 at "Annals of Nuclear Energy"

DOI: 10.1016/j.anucene.2017.09.041

Abstract: Abstract Minor actinides transmutation is the process of decreasing the long term radiotoxicity of the nuclear spent fuel by submitting it to a neutron flux so as to achieve fission of the heavy nuclides concerned.… read more here.

Keywords: transmutation; americium; fuel cycle; curium ... See more keywords

Thermal-and fast-spectrum molten salt reactors for minor actinides transmutation

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Published in 2020 at "Annals of Nuclear Energy"

DOI: 10.1016/j.anucene.2020.107751

Abstract: Abstract The long-lived Minor Actinides (MAs): 237 Np, 241 Am, 243 Am, 243 Cm, 244 Cm, and 245 Cm are responsible for the effective dose and heat generation after direct disposal in deep geological structures.… read more here.

Keywords: minor actinides; molten salt; mas; transmutation ... See more keywords

Effects of transmutation elements in tungsten

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Published in 2019 at "Computational Materials Science"

DOI: 10.1016/j.commatsci.2019.03.002

Abstract: Abstract Tungsten (W) is widely considered as the most promising plasma facing material (PFM), which will be used in nuclear fusion devices. Due to the transmutation reaction caused by the fusion neutron irradiation, transmutation elements… read more here.

Keywords: effects transmutation; transmutation; elements tungsten; transmutation elements ... See more keywords

Analysis of uranium oxide fuel transmutation in Vver-1000 reactor using VISTA and Wims-D4 codes

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Published in 2018 at "Nuclear Engineering and Design"

DOI: 10.1016/j.nucengdes.2018.01.005

Abstract: Abstract In this study, the front end and back end of Uranium Oxide (UOX) fuel cycle were first calculated using nuclear fuel cycle simulation system (VISTA) code. The front end calculated values are 19595.3 ton/year… read more here.

Keywords: transmutation; fuel; ton year; uranium oxide ... See more keywords
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Core design of ma-transmutation fast reactor with zirconium hydride target

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Published in 2021 at "Nuclear Engineering and Design"

DOI: 10.1016/j.nucengdes.2021.111254

Abstract: Abstract The use of zirconium hydride in fast reactors provides excellent MA transmutation performance by neutron moderation with hydrogen. This study has designed an MA transmutation fast reactor loading a ‘target” containing MA-zirconium hydride in… read more here.

Keywords: zirconium hydride; core; transmutation; target ... See more keywords
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Method to Reduce Long-lived Fission Products by Nuclear Transmutations with Fast Spectrum Reactors

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Published in 2017 at "Scientific Reports"

DOI: 10.1038/s41598-017-14319-7

Abstract: Transmutation of long-lived fission products (LLFPs: 79Se, 93Zr, 99Tc, 107Pd, 129I, and 135Cs) into short-lived or non-radioactive nuclides by fast neutron spectrum reactors without isotope separation has been proposed as a solution to the problem… read more here.

Keywords: spectrum reactors; fast spectrum; long lived; fission products ... See more keywords

Hiroshima and Nagasaki Verification of an Unstructured Mesh-Based Transmutation Toolkit

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Published in 2020 at "Nuclear Technology"

DOI: 10.1080/00295450.2020.1741295

Abstract: Abstract In order to model the activated isotopes and resulting dose from a nuclear detonation in an urban environment, the Activation and Transmutation of Isotopes in an Unstructured Mesh (ACTIUM) Python toolkit has been developed… read more here.

Keywords: nagasaki verification; mesh based; hiroshima nagasaki; unstructured mesh ... See more keywords

On a Series Representation for Integral Kernels of Transmutation Operators for Perturbed Bessel Equations

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Published in 2018 at "Mathematical Notes"

DOI: 10.1134/s0001434618090201

Abstract: A representation for the kernel of the transmutation operator relating a perturbed Bessel equation to the unperturbed one is obtained in the form of a functional series with coefficients calculated by a recurrent integration procedure.… read more here.

Keywords: series representation; transmutation; perturbed bessel; representation integral ... See more keywords