title: Safety analysis report for alpha sources used on Surveyor spacecraft.
mesh_terms: D000062:Accidents, Occupational; D000512:Alpha Particles; D003476:Curium; D006801:Humans; D011005:Plutonium; D011829:Radiation Dosage; D011835:Radiation Protection; D011874:Radiometry; D012542:Scattering, Radiation; D013026:Space Flight; D014481:United States
chemical_list: D011005:Plutonium; D003476:Curium