Displacement of Chernobyl fallout in snow layers of temperate Alpine glaciers.
Measurements of the gross-beta-activity and a gamma-spectrum analysis of radioactive fallout from Chernobyl distributed in vertical snow profiles on an Alpine glacier were carried out. Samples were collected in summer 1986 and in summer 1987. A displacement of isotopes to depths of approximately 6 m was observed. The mean activity per unit area amounts to 10.4 and 6.6 kBq m-2 for samples from 1986 and 1987, respectively, both values corrected to 1 May 1987. Isotopes with half-lives shorter than 110m Ag (250 days) could no longer be detected in 1987.
Ambach
W
W
Institute for Medical Physics, University of Innsbruck, Austria.
Rehwald
W
W
Blumthaler
M
M
Eisner
H
H
Brunner
P
P
D000059:Accidents; D001317:Austria; D006801:Humans; D009688:Nuclear Reactors; D011847:Radioactive Fallout; D012914:Snow; D014455:Ukraine; D014873:Water Pollutants / Q000032:analysis*; D014875:Water Pollutants, Radioactive / Q000032:analysis*; D014887:Weather
D011847:Radioactive Fallout; D014873:Water Pollutants; D014875:Water Pollutants, Radioactive