Developing a reliable approach to estimate the stoichiometric ratio of O/U in UO2 pellets using MCNP-5 and artificial intelligence

Uranium dioxied is used as a nuclear fuel. Depending on the temperature and oxygen partial pressure, it is incredibly versatile and can accept a wide variety of stoichiometry. Many methods are used to estimate the non-stoichiometric O/U ratio such as the coulometric titration, gravimetric...

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Main Authors: Shaban Sameh E., Agha Ahmad R., Aladham Karim A.
Format: Article
Language:English
Published: VINCA Institute of Nuclear Sciences 2022-01-01
Series:Nuclear Technology and Radiation Protection
Subjects:
Online Access:https://doiserbia.nb.rs/img/doi/1451-3994/2022/1451-39942204302S.pdf
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author Shaban Sameh E.
Agha Ahmad R.
Aladham Karim A.
author_facet Shaban Sameh E.
Agha Ahmad R.
Aladham Karim A.
author_sort Shaban Sameh E.
collection DOAJ
description Uranium dioxied is used as a nuclear fuel. Depending on the temperature and oxygen partial pressure, it is incredibly versatile and can accept a wide variety of stoichiometry. Many methods are used to estimate the non-stoichiometric O/U ratio such as the coulometric titration, gravimetric and voltammetric methods. These methods have some disadvantages and may be time and cost-consuming. This work develops an approach to determine the stoichiometric ratio by using MCNP-5 code and hyper pure germanium detector to estimate the count rate at 185.7 keV for UO2 pellets. The studied pellets are proposed to have 235U mass content (3 %, 4 %, and 5 %) and 1 cm away from the detector. The mass of the oxide within the pellets is 7.8995 grams. The relation between volume and density has been studied during different steps in which temperature increases. Finally, a reliable model is established to describe the process of converting green pellets to sintered pellets. The model is supported by employing artificial intelligence to predict some features and the overall correlation equals 0.99929.
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spelling doaj.art-019897f86b25469193c589a35d9ce75b2023-06-09T10:42:54ZengVINCA Institute of Nuclear SciencesNuclear Technology and Radiation Protection1451-39941452-81852022-01-0137430230710.2298/NTRP2204302S1451-39942204302SDeveloping a reliable approach to estimate the stoichiometric ratio of O/U in UO2 pellets using MCNP-5 and artificial intelligenceShaban Sameh E.0Agha Ahmad R.1Aladham Karim A.2Nuclear Safeguards and Physical Protection Department, Nuclear and Radiological Safety Research Center, Egyptian Atomic Energy Authority, Cairo, EgyptSafety of Nuclear Fuel Cycle Department, Nuclear and Radiological Safety Research Center, Egyptian Atomic Energy Authority, Cairo, EgyptSafety of Nuclear Fuel Cycle Department, Nuclear and Radiological Safety Research Center, Egyptian Atomic Energy Authority, Cairo, EgyptUranium dioxied is used as a nuclear fuel. Depending on the temperature and oxygen partial pressure, it is incredibly versatile and can accept a wide variety of stoichiometry. Many methods are used to estimate the non-stoichiometric O/U ratio such as the coulometric titration, gravimetric and voltammetric methods. These methods have some disadvantages and may be time and cost-consuming. This work develops an approach to determine the stoichiometric ratio by using MCNP-5 code and hyper pure germanium detector to estimate the count rate at 185.7 keV for UO2 pellets. The studied pellets are proposed to have 235U mass content (3 %, 4 %, and 5 %) and 1 cm away from the detector. The mass of the oxide within the pellets is 7.8995 grams. The relation between volume and density has been studied during different steps in which temperature increases. Finally, a reliable model is established to describe the process of converting green pellets to sintered pellets. The model is supported by employing artificial intelligence to predict some features and the overall correlation equals 0.99929.https://doiserbia.nb.rs/img/doi/1451-3994/2022/1451-39942204302S.pdfstoichiometryuo2 pelletartificial intelligencemcnp-5
spellingShingle Shaban Sameh E.
Agha Ahmad R.
Aladham Karim A.
Developing a reliable approach to estimate the stoichiometric ratio of O/U in UO2 pellets using MCNP-5 and artificial intelligence
Nuclear Technology and Radiation Protection
stoichiometry
uo2 pellet
artificial intelligence
mcnp-5
title Developing a reliable approach to estimate the stoichiometric ratio of O/U in UO2 pellets using MCNP-5 and artificial intelligence
title_full Developing a reliable approach to estimate the stoichiometric ratio of O/U in UO2 pellets using MCNP-5 and artificial intelligence
title_fullStr Developing a reliable approach to estimate the stoichiometric ratio of O/U in UO2 pellets using MCNP-5 and artificial intelligence
title_full_unstemmed Developing a reliable approach to estimate the stoichiometric ratio of O/U in UO2 pellets using MCNP-5 and artificial intelligence
title_short Developing a reliable approach to estimate the stoichiometric ratio of O/U in UO2 pellets using MCNP-5 and artificial intelligence
title_sort developing a reliable approach to estimate the stoichiometric ratio of o u in uo2 pellets using mcnp 5 and artificial intelligence
topic stoichiometry
uo2 pellet
artificial intelligence
mcnp-5
url https://doiserbia.nb.rs/img/doi/1451-3994/2022/1451-39942204302S.pdf
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AT aladhamkarima developingareliableapproachtoestimatethestoichiometricratioofouinuo2pelletsusingmcnp5andartificialintelligence