The influence of some rare earth elements as neutron absorbers on the inception of Oklo natural nuclear reactors
Abstract A totally reflected core model was built to estimate the infinite multiplication factor ${{k}}_{{\infty}}$ as a parametric function using MCNP code. Thus, it was possible to evaluate the influence of a specific physical parameter on the criticality occurrence of the Oklo phenomenon, namely...
Gespeichert in:
Veröffentlicht in: | Radiat.Prot.Dosim 2023-11, Vol.199 (18), p.2269-2274 |
---|---|
Hauptverfasser: | , , , |
Format: | Artikel |
Sprache: | eng |
Schlagworte: | |
Online-Zugang: | Volltext |
Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
container_end_page | 2274 |
---|---|
container_issue | 18 |
container_start_page | 2269 |
container_title | Radiat.Prot.Dosim |
container_volume | 199 |
creator | Bentridi, Salah-Eddine Gall, Benoît Nuttin, Alexis Hidaka, Hiroshi |
description | Abstract
A totally reflected core model was built to estimate the infinite multiplication factor ${{k}}_{{\infty}}$ as a parametric function using MCNP code. Thus, it was possible to evaluate the influence of a specific physical parameter on the criticality occurrence of the Oklo phenomenon, namely initial Poisons (IP: Gd, Sm and Nd). In fact, these rare earth elements, prior to criticality occurrence in Oklo reaction zones (RZs), are considered as a key parameter in the present study. Thus, it was possible to construct isocritical lines, ${{k}}_{{\infty}}\left({{V}}_{{UO}{2}},{{\varPhi}}_{{C}}\ \right)\cong{1}$, over a significant range of Uraninite volume fraction: ${{V}}_{{UO}{2}}\left[\%\right]{\in}\left[{0};{40}\right]$. The corresponding critical porosity ${{\varPhi}}_{{C}}$ is obtained for a given value of ${{V}}_{{UO}{2}}$ by Python-driven MCNP5 calculations. By including realistic measurements of IP for different RZs, it was possible to distinguish the corresponding inception circumstances for the natural RZs considered here. |
doi_str_mv | 10.1093/rpd/ncad048 |
format | Article |
fullrecord | <record><control><sourceid>proquest_hal_p</sourceid><recordid>TN_cdi_proquest_miscellaneous_2887477176</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><oup_id>10.1093/rpd/ncad048</oup_id><sourcerecordid>2887477176</sourcerecordid><originalsourceid>FETCH-LOGICAL-h253t-b90084ebccd0d0fdbc623c28800071541a220112a1a7a3e8c83001d7c4f58b463</originalsourceid><addsrcrecordid>eNo9kE1LAzEURYMoWKsr_0BWoovRl0zapEsRv6DgRtfhTeYNHU2TMckI_nunVlw97uNwLlzGzgVcC1jVN2lob4LDFpQ5YDOhlaxqBctDNgOhVGWUhGN2kvM7gNSrhZqx4XVDvA-dHyk44rHjOW6JJ0zECVPZcPK0pVAyx8wDjSXFwLHJMTWUMp9C-TU4Gko_pcnw8uEjD1jGhJ6H0flJxBOhKzHlU3bUoc909nfn7O3h_vXuqVq_PD7f3a6rjVzUpWpWAEZR41wLLXRt45aydtIYANBioQRKCUJIFKixJuNMDSBa7VS3MI1a1nN2tfdu0Nsh9VtM3zZib59u13b3AyVXymj5JSb2cs8OKX6OlIvd9tmR9xgojtlOtVppLfROe7FH4zj8awXY3fx2mt_-zV__ACmdeWM</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>2887477176</pqid></control><display><type>article</type><title>The influence of some rare earth elements as neutron absorbers on the inception of Oklo natural nuclear reactors</title><source>Oxford University Press Journals</source><source>Alma/SFX Local Collection</source><creator>Bentridi, Salah-Eddine ; Gall, Benoît ; Nuttin, Alexis ; Hidaka, Hiroshi</creator><creatorcontrib>Bentridi, Salah-Eddine ; Gall, Benoît ; Nuttin, Alexis ; Hidaka, Hiroshi</creatorcontrib><description>Abstract
A totally reflected core model was built to estimate the infinite multiplication factor ${{k}}_{{\infty}}$ as a parametric function using MCNP code. Thus, it was possible to evaluate the influence of a specific physical parameter on the criticality occurrence of the Oklo phenomenon, namely initial Poisons (IP: Gd, Sm and Nd). In fact, these rare earth elements, prior to criticality occurrence in Oklo reaction zones (RZs), are considered as a key parameter in the present study. Thus, it was possible to construct isocritical lines, ${{k}}_{{\infty}}\left({{V}}_{{UO}{2}},{{\varPhi}}_{{C}}\ \right)\cong{1}$, over a significant range of Uraninite volume fraction: ${{V}}_{{UO}{2}}\left[\%\right]{\in}\left[{0};{40}\right]$. The corresponding critical porosity ${{\varPhi}}_{{C}}$ is obtained for a given value of ${{V}}_{{UO}{2}}$ by Python-driven MCNP5 calculations. By including realistic measurements of IP for different RZs, it was possible to distinguish the corresponding inception circumstances for the natural RZs considered here.</description><identifier>ISSN: 0144-8420</identifier><identifier>EISSN: 1742-3406</identifier><identifier>DOI: 10.1093/rpd/ncad048</identifier><language>eng</language><publisher>Oxford University Press</publisher><subject>Nuclear Experiment ; Physics</subject><ispartof>Radiat.Prot.Dosim, 2023-11, Vol.199 (18), p.2269-2274</ispartof><rights>The Author(s) 2023. Published by Oxford University Press. All rights reserved. For Permissions, please email: journals.permissions@oup.com 2023</rights><rights>Distributed under a Creative Commons Attribution 4.0 International License</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><orcidid>0000-0002-2129-8139 ; 0000-0002-9858-1397 ; 0000-0003-4296-1910</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,881,1578,27901,27902</link.rule.ids><backlink>$$Uhttps://hal.science/hal-04294872$$DView record in HAL$$Hfree_for_read</backlink></links><search><creatorcontrib>Bentridi, Salah-Eddine</creatorcontrib><creatorcontrib>Gall, Benoît</creatorcontrib><creatorcontrib>Nuttin, Alexis</creatorcontrib><creatorcontrib>Hidaka, Hiroshi</creatorcontrib><title>The influence of some rare earth elements as neutron absorbers on the inception of Oklo natural nuclear reactors</title><title>Radiat.Prot.Dosim</title><description>Abstract
A totally reflected core model was built to estimate the infinite multiplication factor ${{k}}_{{\infty}}$ as a parametric function using MCNP code. Thus, it was possible to evaluate the influence of a specific physical parameter on the criticality occurrence of the Oklo phenomenon, namely initial Poisons (IP: Gd, Sm and Nd). In fact, these rare earth elements, prior to criticality occurrence in Oklo reaction zones (RZs), are considered as a key parameter in the present study. Thus, it was possible to construct isocritical lines, ${{k}}_{{\infty}}\left({{V}}_{{UO}{2}},{{\varPhi}}_{{C}}\ \right)\cong{1}$, over a significant range of Uraninite volume fraction: ${{V}}_{{UO}{2}}\left[\%\right]{\in}\left[{0};{40}\right]$. The corresponding critical porosity ${{\varPhi}}_{{C}}$ is obtained for a given value of ${{V}}_{{UO}{2}}$ by Python-driven MCNP5 calculations. By including realistic measurements of IP for different RZs, it was possible to distinguish the corresponding inception circumstances for the natural RZs considered here.</description><subject>Nuclear Experiment</subject><subject>Physics</subject><issn>0144-8420</issn><issn>1742-3406</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2023</creationdate><recordtype>article</recordtype><recordid>eNo9kE1LAzEURYMoWKsr_0BWoovRl0zapEsRv6DgRtfhTeYNHU2TMckI_nunVlw97uNwLlzGzgVcC1jVN2lob4LDFpQ5YDOhlaxqBctDNgOhVGWUhGN2kvM7gNSrhZqx4XVDvA-dHyk44rHjOW6JJ0zECVPZcPK0pVAyx8wDjSXFwLHJMTWUMp9C-TU4Gko_pcnw8uEjD1jGhJ6H0flJxBOhKzHlU3bUoc909nfn7O3h_vXuqVq_PD7f3a6rjVzUpWpWAEZR41wLLXRt45aydtIYANBioQRKCUJIFKixJuNMDSBa7VS3MI1a1nN2tfdu0Nsh9VtM3zZib59u13b3AyVXymj5JSb2cs8OKX6OlIvd9tmR9xgojtlOtVppLfROe7FH4zj8awXY3fx2mt_-zV__ACmdeWM</recordid><startdate>20231102</startdate><enddate>20231102</enddate><creator>Bentridi, Salah-Eddine</creator><creator>Gall, Benoît</creator><creator>Nuttin, Alexis</creator><creator>Hidaka, Hiroshi</creator><general>Oxford University Press</general><scope>7X8</scope><scope>1XC</scope><orcidid>https://orcid.org/0000-0002-2129-8139</orcidid><orcidid>https://orcid.org/0000-0002-9858-1397</orcidid><orcidid>https://orcid.org/0000-0003-4296-1910</orcidid></search><sort><creationdate>20231102</creationdate><title>The influence of some rare earth elements as neutron absorbers on the inception of Oklo natural nuclear reactors</title><author>Bentridi, Salah-Eddine ; Gall, Benoît ; Nuttin, Alexis ; Hidaka, Hiroshi</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-h253t-b90084ebccd0d0fdbc623c28800071541a220112a1a7a3e8c83001d7c4f58b463</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2023</creationdate><topic>Nuclear Experiment</topic><topic>Physics</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Bentridi, Salah-Eddine</creatorcontrib><creatorcontrib>Gall, Benoît</creatorcontrib><creatorcontrib>Nuttin, Alexis</creatorcontrib><creatorcontrib>Hidaka, Hiroshi</creatorcontrib><collection>MEDLINE - Academic</collection><collection>Hyper Article en Ligne (HAL)</collection><jtitle>Radiat.Prot.Dosim</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Bentridi, Salah-Eddine</au><au>Gall, Benoît</au><au>Nuttin, Alexis</au><au>Hidaka, Hiroshi</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>The influence of some rare earth elements as neutron absorbers on the inception of Oklo natural nuclear reactors</atitle><jtitle>Radiat.Prot.Dosim</jtitle><date>2023-11-02</date><risdate>2023</risdate><volume>199</volume><issue>18</issue><spage>2269</spage><epage>2274</epage><pages>2269-2274</pages><issn>0144-8420</issn><eissn>1742-3406</eissn><abstract>Abstract
A totally reflected core model was built to estimate the infinite multiplication factor ${{k}}_{{\infty}}$ as a parametric function using MCNP code. Thus, it was possible to evaluate the influence of a specific physical parameter on the criticality occurrence of the Oklo phenomenon, namely initial Poisons (IP: Gd, Sm and Nd). In fact, these rare earth elements, prior to criticality occurrence in Oklo reaction zones (RZs), are considered as a key parameter in the present study. Thus, it was possible to construct isocritical lines, ${{k}}_{{\infty}}\left({{V}}_{{UO}{2}},{{\varPhi}}_{{C}}\ \right)\cong{1}$, over a significant range of Uraninite volume fraction: ${{V}}_{{UO}{2}}\left[\%\right]{\in}\left[{0};{40}\right]$. The corresponding critical porosity ${{\varPhi}}_{{C}}$ is obtained for a given value of ${{V}}_{{UO}{2}}$ by Python-driven MCNP5 calculations. By including realistic measurements of IP for different RZs, it was possible to distinguish the corresponding inception circumstances for the natural RZs considered here.</abstract><pub>Oxford University Press</pub><doi>10.1093/rpd/ncad048</doi><tpages>6</tpages><orcidid>https://orcid.org/0000-0002-2129-8139</orcidid><orcidid>https://orcid.org/0000-0002-9858-1397</orcidid><orcidid>https://orcid.org/0000-0003-4296-1910</orcidid></addata></record> |
fulltext | fulltext |
identifier | ISSN: 0144-8420 |
ispartof | Radiat.Prot.Dosim, 2023-11, Vol.199 (18), p.2269-2274 |
issn | 0144-8420 1742-3406 |
language | eng |
recordid | cdi_proquest_miscellaneous_2887477176 |
source | Oxford University Press Journals; Alma/SFX Local Collection |
subjects | Nuclear Experiment Physics |
title | The influence of some rare earth elements as neutron absorbers on the inception of Oklo natural nuclear reactors |
url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-02-01T11%3A44%3A40IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_hal_p&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=The%20influence%20of%20some%20rare%20earth%20elements%20as%20neutron%20absorbers%20on%20the%20inception%20of%20Oklo%20natural%20nuclear%20reactors&rft.jtitle=Radiat.Prot.Dosim&rft.au=Bentridi,%20Salah-Eddine&rft.date=2023-11-02&rft.volume=199&rft.issue=18&rft.spage=2269&rft.epage=2274&rft.pages=2269-2274&rft.issn=0144-8420&rft.eissn=1742-3406&rft_id=info:doi/10.1093/rpd/ncad048&rft_dat=%3Cproquest_hal_p%3E2887477176%3C/proquest_hal_p%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=2887477176&rft_id=info:pmid/&rft_oup_id=10.1093/rpd/ncad048&rfr_iscdi=true |