Non-Destructive Radiological Decontamination of Building Materials

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70565813%3A_____%2F14%3A%230000550" target="_blank" >RIV/70565813:_____/14:#0000550 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Non-Destructive Radiological Decontamination of Building Materials

Popis výsledku v původním jazyce

For nondestructive radiation decontamination of surfaces it is necessary to use varnishes, such as ARGONNE, DG1101, DG1108, etc.. This text evaluates the use of commonly manufactured strippable coatings for radiation decontamination. To evaluate decontamination capability of such coatings following varnishes were selected and subsequently used: AZ 1-700 and AXAL 1807S. The varnishes were tested on the of different building materials surfaces contaminated by the short-term radioisotopes of Na-24 or La-140 in water soluble or water insoluble forms. Decontamination quality was assessed by the decontamination efficiency value, defined as the proportion of removed activity to the applied activity. It was found that the decontamination efficiency of both used varnishes depends not only on the form of contaminant, but in the case of application of AXAL 1807S varnish it also depends on the method of its application on the contaminated surface. The values of the decontamination efficiency for the AZ1-700 varnish range from 46% for decontamination of a soluble form of the radioisotope from concrete surface to 98%, for the decontamination of a soluble form of the radioisotope from ceramic tile surface. The decontamination efficiency values determined for AXAL 1807S varnish range from 48% for decontamination of a soluble form of the radioisotope from concrete surface to 96% for decontamination of an insoluble form of the radioisotope from ceramic tile surface. Comparing these values to the values given for the decontaminating varnishes we can conclude that the AXAL 1807S varnish is possible to use on all materials, except highly porous materials such as plasterboard or breeze blocks or plastic materials. AZ 1-700 varnish can be used for all dry materials without plasterboard.

Název v anglickém jazyce

Non-Destructive Radiological Decontamination of Building Materials

Popis výsledku anglicky

For nondestructive radiation decontamination of surfaces it is necessary to use varnishes, such as ARGONNE, DG1101, DG1108, etc.. This text evaluates the use of commonly manufactured strippable coatings for radiation decontamination. To evaluate decontamination capability of such coatings following varnishes were selected and subsequently used: AZ 1-700 and AXAL 1807S. The varnishes were tested on the of different building materials surfaces contaminated by the short-term radioisotopes of Na-24 or La-140 in water soluble or water insoluble forms. Decontamination quality was assessed by the decontamination efficiency value, defined as the proportion of removed activity to the applied activity. It was found that the decontamination efficiency of both used varnishes depends not only on the form of contaminant, but in the case of application of AXAL 1807S varnish it also depends on the method of its application on the contaminated surface. The values of the decontamination efficiency for the AZ1-700 varnish range from 46% for decontamination of a soluble form of the radioisotope from concrete surface to 98%, for the decontamination of a soluble form of the radioisotope from ceramic tile surface. The decontamination efficiency values determined for AXAL 1807S varnish range from 48% for decontamination of a soluble form of the radioisotope from concrete surface to 96% for decontamination of an insoluble form of the radioisotope from ceramic tile surface. Comparing these values to the values given for the decontaminating varnishes we can conclude that the AXAL 1807S varnish is possible to use on all materials, except highly porous materials such as plasterboard or breeze blocks or plastic materials. AZ 1-700 varnish can be used for all dry materials without plasterboard.

Druh

O - Ostatní výsledky

CEP obor

JF - Jaderná energetika

OECD FORD obor

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Projekt

<a href="/cs/project/VF20112015013" target="_blank" >VF20112015013: Výzkum moderních metod detekce a identifikace nebezpečných CBRN látek a materiálů, metod snížení jejich nebezpečnosti a dekontaminace; výzkum moderních prostředků ochrany osob a prvků kritické infrastruktury</a><br>

Návaznosti

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

Rok uplatnění

2014

Kód důvěrnosti údajů

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