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Vertical distributions of 226Ra, 228Ra, and 137Cs activities in the southwestern part of the Sea of Okhotsk.
- Source :
-
EPJ Web of Conferences . 2012, Issue 24, p1-6. 6p. - Publication Year :
- 2012
-
Abstract
- We collected 14 water column seawater samples in the southwestern part of the Sea of Okhotsk and employed low-background γ- spectrometry with convenient minimal radiochemical processing to determine the activities of 226Ra (half-life t1/2 = 1600 y), 228Ra (5.75 y), and 137Cs (30.2 y) of the samples. All of these nuclides exhibited unique vertical profiles; 226Ra, 228Ra, and 137Cs activities exhibit small variations from 50-500m depth (226Ra, ~ 2mBq l-1; 228Ra, ~ 0.4mBql-1; 137Cs, ~ 1mBq l-1). These profiles can be explained by convective mixing of surface water to this layer. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 21016275
- Issue :
- 24
- Database :
- Academic Search Index
- Journal :
- EPJ Web of Conferences
- Publication Type :
- Conference
- Accession number :
- 85747788
- Full Text :
- https://doi.org/10.1051/epjconf/20122404001