Calculating Ivalent Dose Rate Field Structure Applying the Method of Optimal Interpollation in the Baltic Sea Coast
Linas Jonas Gustas
Mindaugas Lemežis
Abstract
Equivalent dose rate measurements were carried out in the Baltic Sea coast near Juodkrantė. The measurements were performed at the ground level and 1 meter above it at 63 points within the territory of 2,0´0,2 km on 2 July 2008 and 10 July 2008 under conditions of northern and southern wind directions respectively. The extreme rates of the equivalent dose rate were 51 and 90 nSv/h respectively which means that the structure of the equivalent dose field was unhomogeneous. The method of optimal interpollation was used to calculate and evaluate the structure of the equivalent dose rate field. This method was used in 3 cases when 63, 33 and 18 numbers of measurement were carried out. The identical structures of the equivalent dose field were accepted. Using 18 measurement points, coincidence between the measured and calculated values of the equivalent dose rate was satisfactory. Difference between the measured and calculated values does not exceed 15% in 80% of the measurement points.
Article in Lithuanian
Keyword(s): Curonian Spit; radionuclides; equivalent dose rate; optimum interpolation method
DOI: 10.3846/mla.2009.4.07
Science – Future of Lithuania / Mokslas – Lietuvos Ateitis ISSN 2029-2341, eISSN 2029-2252
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