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Modeling of an in-situ diffusion experiment in granite at the Grimsel Test Site

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46356088%3A_____%2F14%3A%230001656" target="_blank" >RIV/46356088:_____/14:#0001656 - isvavai.cz</a>

  • Result on the web

    <a href="http://dx.doi.org/10.1557/opl.2014.632" target="_blank" >http://dx.doi.org/10.1557/opl.2014.632</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1557/opl.2014.632" target="_blank" >10.1557/opl.2014.632</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Modeling of an in-situ diffusion experiment in granite at the Grimsel Test Site

  • Original language description

    Matrix diffusion is a key process for radionuclide retention in crystalline rocks. Within the LTD project (Long-Term Diffusion), an in-situ diffusion experiment in unaltered non-fractured granite was performed at the Grimsel Test Site (www.grimsel.com, Switzerland). The tracers included 3H as HTO, 22Na+, 134Cs+ and 131I- with stable I- as carrier. The dataset (except for 131I- because of complete decay) was analyzed with different diffusion-sorption models by different teams (NAGRA / IDAEA-CSIC, UJV-Rez, JAEA, Univ. Poitiers) using different codes, with the goal of obtaining effective diffusion coefficients (De) and porosity (?) or rock capacity (?) values. A Borehole Disturbed Zone (BDZ), which was observed in the rock profile data for 22Na+ and 134Cs+, had to be taken into account to fit the experimental observations. The extension of the BDZ (1-2 mm) was about the same magnitude as the mean grain size of the quartz and feldspar grains. D<inf>e</inf> and ? values for the different tr

  • Czech name

  • Czech description

Classification

  • Type

    D - Article in proceedings

  • CEP classification

    DL - Nuclear waste, radioactive pollution and control

  • OECD FORD branch

Result continuities

  • Project

    Result was created during the realization of more than one project. More information in the Projects tab.

  • Continuities

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

Others

  • Publication year

    2014

  • Confidentiality

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

Data specific for result type

  • Article name in the collection

    MRS proceedings

  • ISBN

  • ISSN

    1946-4274

  • e-ISSN

  • Number of pages

    7

  • Pages from-to

    85-91

  • Publisher name

    Cambridge University Press

  • Place of publication

    Cambridge, UK

  • Event location

    Barcelona

  • Event date

    Jan 1, 2013

  • Type of event by nationality

    WRD - Celosvětová akce

  • UT code for WoS article