Mapping of tritium emissions using absorption vapour samplers.
Püspökszilágy Radioactive Waste Treatment and Disposal Facility (RWTDF) is a typical near-surface engineered repository designated to store low- and intermediate-level wastes from various institutes, research facilities and hospitals in Hungary. Two automatic combined (14)C-tritium sampling units installed at the facility sample the air 2 m above surface. The one installed near the vaults detects tritium (T) activities two orders of magnitude higher than the far reference sampling unit. To localize the T emissions, 19 small absorption vapour samplers filled with silica gel were settled onto the ground surface. After the saturation of the silica gel, the water was recovered and its T concentration was measured with a low-background liquid scintillation counter. The absorption vapour samplers are cheap, simple and easy-to-use. We present the samplers and the T distribution map constructed from the data, which helps to localize the T emission.
Vodila
Gergely
G
Laboratory of Environmental Studies, Institute of Nuclear Research (ATOMKI) of Hungarian Academy of Sciences, H-4001 Debrecen, Hungary. gvodila@atomki.hu
Molnár
Mihály
M
Veres
Mihály
M
Svingor
Eva
E
Futó
István
I
Barnabás
István
I
Kapitány
Sándor
S
D000042:Absorption; D000396:Air Pollutants, Radioactive / Q000032:analysis*; D004784:Environmental Monitoring / Q000295:instrumentation / Q000379:methods; D006814:Hungary; D008962:Models, Theoretical; D058428:Silica Gel; D012822:Silicon Dioxide / Q000737:chemistry; D014316:Tritium / Q000032:analysis*
D000396:Air Pollutants, Radioactive; D014316:Tritium; D058428:Silica Gel; D012822:Silicon Dioxide