Zobrazeno 1 - 10
of 14
pro vyhledávání: '"O. S. Tsvetkov"'
Autor:
A. V. Stepanov, O. S. Tsvetkov, N. A. Tishkova, A. S. Konopatkin, A. M. Agapov, V. P. Tishkov, M. I. Belen'kii, E. L. Lebedev, Yu. A. Panteleev, Z. G. Gritchenko, V. S. Plekhov, L. M. Ivanova, T.E. Orlova, V. M. Gavrilov
Publikováno v:
Radiochemistry. 45:408-413
Many-year monitoring data on the 90Sr and 137Cs levels in water of the Neva River and Lake Ladoga are presented. In 1970-1990, the 90Sr level in the Neva River steadily increased. In 1991, a radiological survey was made of the Kit experimental vessel
Publikováno v:
Radiochemistry. 43:315-319
Systematic data on radioactive atmospheric fallout in 1954-1999 and accumulated levels of contamination of the soil-vegetable cover with 90Sr and 137Cs around St. Petersburg, estimated on 1998, are presented. Comparative analysis is made of these dat
Publikováno v:
Radiochemistry. 43:203-206
Plutonium isotopic composition including 238Pu, 239Pu, 240Pu, and 241Pu and the Pu contamination level are determined in soils around St. Petersburg using an advanced procedure involving radiochemical separation stage followed by the α-ray spectrome
Autor:
A. V. Stepanov, Ola M. Johannessen, O. S. Tsvetkov, B. N. Belyaev, V. D. Domkin, Viktor P. Tishkov, L. M. Ivanova, A. A. Osokina, K. L. Bobylev, V. S. Plekhov
Publikováno v:
Atomic Energy. 87:745-752
The results of measurements of the isotopic atomic ratios238Pu/239Pu,240Pu/239Pu,241Pu/239Pu,242Pu/239Pu in samples of bottom deposits are presented. The role of the main sources of plutonium contamination of the region is examined. It is shown that
Autor:
L. M. Ivanova, N. A. Tishkova, V. M. Gavrilov, V. D. Domkin, B. N. Belyaev, Viktor P. Tishkov, O. S. Tsvetkov
Publikováno v:
Atomic Energy. 83:762-767
Autor:
O. S. Tsvetkov, S. G. Trofimchuk, Yu. A. Panteleev, I. A. Kharitonov, V. P. Tishkov, V. M. Gavrilov, V. I. Fominykh
Publikováno v:
Measurement Techniques. 43:294-295
Autor:
O. S. Tsvetkov, G. V. Gorshkov
Publikováno v:
Soviet Atomic Energy. 26:32-36
Publikováno v:
Soviet Atomic Energy. 17:1256-1260
The calculations that were made have shown that the production of neutrons by cosmic rays in the upper layers of the earth's crust can exert a strong influence on the slow neutron flux at sea level.
Autor:
O. S. Tsvetkov, G. V. Gorshkov
Publikováno v:
Soviet Atomic Energy. 14:573-577
Publikováno v:
The Soviet Journal of Atomic Energy. 13:654-657