"Ions." . . "Radiation transport." . . . . . . . . . . . . . . . . . . "Radiation transport and shielding for space exploration and high speed flight transportation final report on NAG1-1789"@en . . . . . . . . . . . . . "Nuclear power plants." . . "Shielding." . . "Transportation." . . "Neutrons." . . "Absorption cross sections." . . "High speed." . . "Nuclear reactions." . . "Space exploration." . . . .