title: Determination of 240Pu/239Pu ratio in environmental samples based on the measurement of Lx/alpha-ray activity ratio.
abstract: The determination of the 240Pu /239Pu isotopic ratio in environmental samples has been attempted by the measurement of the Lx/alpha-ray activity ratio using a Ge- LEPS (low-energy photon spectrometer) and a surface-barrier Si detector. By this method, interesting data were obtained for various samples collected from Thule , Greenland, Bikini Atoll and Nagasaki, as well as for some soils collected from near and off-site locations of atomic power stations.
mesh_terms: D000512:Alpha Particles; D006116:Greenland; D007564:Japan; D008433:Mathematics; D008849:Micronesia; D011005:Plutonium / Q000032:analysis*; D011874:Radiometry / Q000379:methods; D012989:Soil Pollutants / Q000032:analysis*; D012990:Soil Pollutants, Radioactive / Q000032:analysis*; D014965:X-Rays
chemical_list: D012989:Soil Pollutants; D012990:Soil Pollutants, Radioactive; D011005:Plutonium