Abstract
Individual doses and short-term radiological consequences from a hypothetical severe accident at the Russian nuclear power plant in Sosnovyj Bor were estimated for two sites in Finland. The sites are Kotka, located 140 km from the plant, and Helsinki, 220 km from the plant. The release was assumed to start immediately after the shutdown of the reactor (a 1000 MW RBMK unit) which had been operating at nominal power level for a long time. An effective release height of 500 m was assumed. The prevailing meteorological conditions during the release were taken to present the situation typical of the area (effective wind speed 9 m/s, neutral dispersion conditions). The release fractions applied in the study were of the same order as in the Chernobyl accident, i.e. 100% for noble gases, 60% for iodines, 40% for cesium and 1-10% for other radiologically important nuclides. The release was assumed to last 24 hours. However, half of the nuclides were released during the first hour. No attention was paid to the actual sequence of events that could lead to such release characteristics and time behaviour. The concentration and dose calculations were performed with a modified version of the computer code OIVA developed in
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Lahtinen, J;
Toivonen, H;
Poellaenen, R;
[1]
Nordlund, G
[2]
- Finnish Centre for Radiation and Nuclear Safety, Helsinki (Finland)
- Finnish Meteorological Institute, Helsinki (Finland)
Citation Formats
Lahtinen, J, Toivonen, H, Poellaenen, R, and Nordlund, G.
A hypothetical severe reactor accident in Sosnovyj Bor, Russia. Short-term radiological consequences in southern Finland.
Finland: N. p.,
1993.
Web.
Lahtinen, J, Toivonen, H, Poellaenen, R, & Nordlund, G.
A hypothetical severe reactor accident in Sosnovyj Bor, Russia. Short-term radiological consequences in southern Finland.
Finland.
Lahtinen, J, Toivonen, H, Poellaenen, R, and Nordlund, G.
1993.
"A hypothetical severe reactor accident in Sosnovyj Bor, Russia. Short-term radiological consequences in southern Finland."
Finland.
@misc{etde_10152708,
title = {A hypothetical severe reactor accident in Sosnovyj Bor, Russia. Short-term radiological consequences in southern Finland}
author = {Lahtinen, J, Toivonen, H, Poellaenen, R, and Nordlund, G}
abstractNote = {Individual doses and short-term radiological consequences from a hypothetical severe accident at the Russian nuclear power plant in Sosnovyj Bor were estimated for two sites in Finland. The sites are Kotka, located 140 km from the plant, and Helsinki, 220 km from the plant. The release was assumed to start immediately after the shutdown of the reactor (a 1000 MW RBMK unit) which had been operating at nominal power level for a long time. An effective release height of 500 m was assumed. The prevailing meteorological conditions during the release were taken to present the situation typical of the area (effective wind speed 9 m/s, neutral dispersion conditions). The release fractions applied in the study were of the same order as in the Chernobyl accident, i.e. 100% for noble gases, 60% for iodines, 40% for cesium and 1-10% for other radiologically important nuclides. The release was assumed to last 24 hours. However, half of the nuclides were released during the first hour. No attention was paid to the actual sequence of events that could lead to such release characteristics and time behaviour. The concentration and dose calculations were performed with a modified version of the computer code OIVA developed in Finnish Centre for Radiation and Nuclear Safety. Inhalation dose and external doses from the release plume and from the deposited activity were calculated for adults only, and no sheltering was considered. (11 refs., 4 figs., 6 tabs.).}
place = {Finland}
year = {1993}
month = {Dec}
}
title = {A hypothetical severe reactor accident in Sosnovyj Bor, Russia. Short-term radiological consequences in southern Finland}
author = {Lahtinen, J, Toivonen, H, Poellaenen, R, and Nordlund, G}
abstractNote = {Individual doses and short-term radiological consequences from a hypothetical severe accident at the Russian nuclear power plant in Sosnovyj Bor were estimated for two sites in Finland. The sites are Kotka, located 140 km from the plant, and Helsinki, 220 km from the plant. The release was assumed to start immediately after the shutdown of the reactor (a 1000 MW RBMK unit) which had been operating at nominal power level for a long time. An effective release height of 500 m was assumed. The prevailing meteorological conditions during the release were taken to present the situation typical of the area (effective wind speed 9 m/s, neutral dispersion conditions). The release fractions applied in the study were of the same order as in the Chernobyl accident, i.e. 100% for noble gases, 60% for iodines, 40% for cesium and 1-10% for other radiologically important nuclides. The release was assumed to last 24 hours. However, half of the nuclides were released during the first hour. No attention was paid to the actual sequence of events that could lead to such release characteristics and time behaviour. The concentration and dose calculations were performed with a modified version of the computer code OIVA developed in Finnish Centre for Radiation and Nuclear Safety. Inhalation dose and external doses from the release plume and from the deposited activity were calculated for adults only, and no sheltering was considered. (11 refs., 4 figs., 6 tabs.).}
place = {Finland}
year = {1993}
month = {Dec}
}