Analysis of in-diffusion of 241Am in concrete by an inverse technique

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F19%3A00335573" target="_blank" >RIV/68407700:21110/19:00335573 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1063/1.5137980" target="_blank" >http://dx.doi.org/10.1063/1.5137980</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1063/1.5137980" target="_blank" >10.1063/1.5137980</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Analysis of in-diffusion of 241Am in concrete by an inverse technique

Popis výsledku v původním jazyce

Apparent diffusion coefficients of decaying radionuclides transported in saturated porous media can be evaluated by an inverse technique based on the Boltzmann-Matano method. Here this technique is applied to obtain concentration dependences of the apparent diffusion coefficient of 241Am for which the corresponding concentration profiles were measured for two types of concrete. These general results are compared with those from the original study in which the diffusivity was constant. Three types of simple functions are used to approximate the experimental concentration profiles, and the corresponding dependences of the diffusion coefficient on concentration are given via quite simple formulas. Although being different at low and high concentrations, they all provide similar results within the intermediate range.

Název v anglickém jazyce

Analysis of in-diffusion of 241Am in concrete by an inverse technique

Popis výsledku anglicky

Apparent diffusion coefficients of decaying radionuclides transported in saturated porous media can be evaluated by an inverse technique based on the Boltzmann-Matano method. Here this technique is applied to obtain concentration dependences of the apparent diffusion coefficient of 241Am for which the corresponding concentration profiles were measured for two types of concrete. These general results are compared with those from the original study in which the diffusivity was constant. Three types of simple functions are used to approximate the experimental concentration profiles, and the corresponding dependences of the diffusion coefficient on concentration are given via quite simple formulas. Although being different at low and high concentrations, they all provide similar results within the intermediate range.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20501 - Materials engineering

Projekt

<a href="/cs/project/GA17-11635S" target="_blank" >GA17-11635S: Cementové kompozity k imobilizaci radionuklidů</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2019

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

PROCEEDINGS OF THE INTERNATIONAL CONFERENCE OF COMPUTATIONAL METHODS IN SCIENCES AND ENGINEERING 2019 (ICCMSE-2019)

ISBN

978-0-7354-1933-9

ISSN

—

e-ISSN

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Počet stran výsledku

4

Strana od-do

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Název nakladatele

AIP Conference Proceedings

Místo vydání

New York

Místo konání akce

Rhodes

Datum konání akce

1. 5. 2019

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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