Evaluation of the Parameters of Radioactive Contamination of Soils Page: 4 of 4
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WM'02 Conference, February 24-28, 2002, Tucson, AZ
A direct test of the developed method was performed in a special experiment. A model
well was created with a pipe casing in the center, in which the detector could be moved. At a
certain depth, a layer of sand with a given specific activity of 137Cs was formed. The specific
activity of 137Cs, calculated using the proposed method, was in satisfactory agreement with the
true value.
CONCLUSIONS
The method for determination of 137 Cs specific activity, and using correlation an activity
of others radionuclides too in soils of local zone of "Shelter" object and industrial site of ChNPP
have been developed. The method is based on treatment of wells y-logging data and takes into
account the conditions of the Shelter's local area. The necessary for direct solving of Equation
(1) coefficients were received from experimental measurements on the wells models.
The developed method gives the possibility to estimate a nuclear fuel quantity, that have
fallen on the surrounding of emergency unit territory and were disposal in anthropogenic soils.
The method can be used also for control of 137 Cs contamination around radioactive
wastes disposals and repositories.
REFERENCES
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results of the investigations on well model for estimation of 137Cs specific activities in soils
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5. S.N. Begichev, A.A.Borovoy, E.V. Burlakov et all. 'The reactor fuel of ChNPP Unit 4 (brief
handbok)". Kurchatov institute of atomic energy. Preprint IAE-5268/3. Moscow, (1990).
6. E.M. Pasuhin. "Some nuclear and physical characteristics of Chornobyl NPP Unit 4 fuel".
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M.I., Panasyuk; A.D., Skorbun & O.O., Klyuchnikov. Evaluation of the Parameters of Radioactive Contamination of Soils, article, February 26, 2002; Tucson, Arizona. (https://digital.library.unt.edu/ark:/67531/metadc785365/m1/4/: accessed April 17, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.