The feasibility of using 129I to reconstruct 131I deposition from the Chernobyl reactor accident.
Radioiodine released to the atmosphere from the accident at the Chernobyl nuclear power station in the spring of 1986 resulted in large-scale thyroid-gland exposure of populations in Ukraine, Belarus, and Russia. Because of the short half life of 131I (8.04 d), adequate data on the intensities and patterns of iodine deposition were not collected, especially in the regions where the incidence of childhood-thyroid cancer is now increasing. Results are presented from a feasibility study that show that accelerator-mass-spectrometry measurements of 129I (half life 16 x 106 y) in soil can be used to reconstruct 131I-deposition density and thus help in the thyroid-dosimetry effort that is now urgently needed to support epidemiologic studies of childhood-thyroid cancer in the affected regions.
Lawrence Livermore National Laboratory, University of California, Livermore 94550, USA.
T
T
Straume
A A
AA
Marchetti
L R
LR
Anspaugh
V T
VT
Khrouch
Gavrilin YuI
S M
SM
Shinkarev
V V
VV
Drozdovitch
A V
AV
Ulanovsky
S V
SV
Korneev
M K
MK
Brekeshev
E S
ES
Leonov
G
G
Voigt
S V
SV
Panchenko
V F
VF
Minenko
D002588:Cesium Radioisotopes / Q000032:analysis; D007457:Iodine Radioisotopes / Q000032:analysis*; D009688:Nuclear Reactors; D011005:Plutonium / Q000032:analysis; D011210:Power Plants; D011834:Radiation Monitoring / Q000379:methods*; D018788:Radioactive Hazard Release; D002094:Republic of Belarus; D012990:Soil Pollutants, Radioactive / Q000032:analysis*; D014455:Ukraine
D002588:Cesium Radioisotopes; D007457:Iodine Radioisotopes; D012990:Soil Pollutants, Radioactive; D011005:Plutonium