Mercury mass measurement in fluorescent lamps via neutron activation analysis

Kód výsledku v IS VaVaI

RIV/26722445:_____/14:#0000999 - isvavai.cz

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Mercury mass measurement in fluorescent lamps via neutron activation analysis

Popis výsledku v původním jazyce

Poster at 9th International Topical Meeting on Industrial Radiation and Radioisotope Measurement Applications, Valencia (Spain), 6-11 July 2014. Experiments with NAA for Hg mass determination in fluorescent lamps confirmed that this approach is feasiblewhen carried out in DONA vertical channel of the LVR-15 research reactor. A contribution of neutron self-absorption to the combined uncertainty of the Hg mass determination was estimated to be about 5 % or less. The main problem is a high induced activity of 152Eu and 124Sb relative to that of 203Hg. This leads to a higher radiation dose and consecutively radiation damage of the irradiated lamp. In next experiments the procedure will be optimized as concern both irradiation and gamma spectrometry conditions.

Název v anglickém jazyce

Mercury mass measurement in fluorescent lamps via neutron activation analysis

Popis výsledku anglicky

Poster at 9th International Topical Meeting on Industrial Radiation and Radioisotope Measurement Applications, Valencia (Spain), 6-11 July 2014. Experiments with NAA for Hg mass determination in fluorescent lamps confirmed that this approach is feasiblewhen carried out in DONA vertical channel of the LVR-15 research reactor. A contribution of neutron self-absorption to the combined uncertainty of the Hg mass determination was estimated to be about 5 % or less. The main problem is a high induced activity of 152Eu and 124Sb relative to that of 203Hg. This leads to a higher radiation dose and consecutively radiation damage of the irradiated lamp. In next experiments the procedure will be optimized as concern both irradiation and gamma spectrometry conditions.

Druh

O - Ostatní výsledky

CEP obor

BG - Jaderná, atomová a molekulová fyzika, urychlovače

OECD FORD obor

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Projekt

TA01010237: Pracoviště pro nedestruktivní testování, diagnostiku a 3D zobrazování pomocí neutronové radiografie a tomografie

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