The radiation field in air due to distributed gamma-ray sources in the ground. HASL-195.
D000398:Air Pollution, Radioactive; D008433:Mathematics; D008722:Methods; D011194:Potassium Isotopes / Q000032:analysis; D011834:Radiation Monitoring; D012987:Soil / Q000528:radiation effects*; D013057:Spectrum Analysis; D013910:Thorium / Q000032:analysis; D014501:Uranium / Q000032:analysis