Mercury mass measurement in fluorescent lamps via neutron activation analysis
Result description
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.
Keywords
neutron activation analysisLVR-15 research reactorradiation damage
The result's identifiers
Result code in IS VaVaI
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Mercury mass measurement in fluorescent lamps via neutron activation analysis
Original language description
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.
Czech name
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Czech description
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Classification
Type
O - Miscellaneous
CEP classification
BG - Nuclear, atomic and molecular physics, accelerators
OECD FORD branch
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Result continuities
Project
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
Basic information
Result type
O - Miscellaneous
CEP
BG - Nuclear, atomic and molecular physics, accelerators
Year of implementation
2014