Determination of technogenic radioactivity near sites of sinking potentially dangerous objects in the Kara Sea. Determination of Cs-137 in seawater by using sorbent ANFEZH
Studies have been made under the project "System of the White Sea". Seawater samples were collected during a cruise of the scientific ship "Professor Shtokman" (August 2001), and "Ivan Petrov" (June 2002)
Water samples (volume greater than 100 liters) were passed through two successive layers ANFEZH ferrocyanide sorbent for the determination of 137Cs.
Extent of absorption by 137Cs has done from the ratio of activity between the first and second layers of adsorbent.
Presence of 137Cs was determined by means of γ-spectrometer GC-3020 (Ge detector, Canberra Ind.) at line 661.6 keV with 30% relative efficiency.
Data analysis was done by software Genie PC-400. Mean value of radioactivity 137Cs in water near surface was 4.1 Bq / m3.
Final Report (in Russian) - Determination of technogenic radioactivity levels near sites of sinking potentially dangerous objects in the Kara Sea. / by Ph.D. Yury Sapozhnikov and Ph.D. Serge Kalmuykov // Moscow, Chemical Faculty of Moscow State University, 2005.
Results also has been reported at 7th Russian-Finnish Radiochemical Symposium (Sankt-Petersburg, 2005).