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Natural effective half-life of 137Cs in tea plants
M Y Unlü1, S Topçuoğlu, R Küçükcezzar
1Cekmece Nuclear Research and Training Center P.K.1, Istanbul, Turkey.
Health Physics
|January 1, 1995
Abstract:
Contamination levels and variation of 137Cs in tea plant leaves from 1986-1992 were determined over the coast line of the Eastern Black Sea region in Turkey. The decrease of 137Cs radionuclide concentration in tea plant leaves may be described by a double exponential function with 94.8% activity lost with a Teff of 125 d and 5.2% activity lost with a Teff of 1,114 d.