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Digitale Medien

Measurement of krypton-85 in the atmosphere with a portable apparatus (1984)

Okai, T. ; Takashima, Y. ; Shiraishi, N. ; [weitere]

Springer

Journal of radioanalytical and nuclear chemistry 81 (1984), S. 161-165

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Details

ISSN: 1588-2780

Quelle: Springer Online Journal Archives 1860-2000

Thema: Chemie und Pharmazie , Energietechnik

Notizen: Abstract A portable apparatus was developed for the rapid collection, separation and counting of krypton-85 in the environmental air samples. The apparatus consists of a molecular sieve trap for the elimination of H2O and CO2, a charcoal trap for the collection of krypton, a chromatographic column for the isolation of krypton in the air sample and a vial for the dissolution of krypton in the scintillation solution. With this apparatus, krypton can be collected from half a cubic meter of air with 94% recovery in about 3 hrs. The measurements of krypton-85 have been done several times in Fukuoka area between the periods Jan. 30, 1981 and Dec. 9, 1981. And then, the krypton-85 concentration was found to be approximately 21 pCi/m3 air. The results were compared with those obtained by foregin investigators.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1007/BF02132931

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