_moderator_ A material which is used in an atomic reactor to slow down the speed of the neutrons. Graphite and water are common moderators. _nuclear_ The correct name for energy produced by _energy_ changes in atomic nuclei. _Atomic energy_ is the common name for nuclear energy. _pig_ Heavy metal container for radioactive material. Similar to _coffin_. _pitchblende_ The ore richest in uranium. _remote_ A device that can handle radioactive materials _manipulator_ mechanically while the operator remains safe behind a shield. (Also called a _master slave manipulator_.) _scram_ To stop an atomic reactor. An emergency stop is called a _fast scram_. _transmute_ To change one kind of atom into another kind. INDEX alpha particle, 30 atomic energy, 8 atomic number, 27 atomic pile, 36 atomic power, 42 atomic theory, 15 Becquerel, Antoine Henri, 20 beta particles, 30 boiling water reactor, 44 breeder reactor, 46 cadmium, 38 carbon-14, 56 chain reaction, 35, 36, 44 chemical compound, 15 Compton. Arthur H., 40 Conant, James B., 40 control rod, 38 Curie, Marie, 22 Curie, Pierre, 22 Dalton, John, 15 Dead Sea Scrolls, 57 decay, 30 Democritus, 13 electron, 26, 29 element, 15 energy, 32 Fermi, Enrico, 36 fission, 34 fossil fuels, 9, 46 gamma rays, 30 Geiger counter, 53 graphite, 36, 44 half-life, 32 helium, 28 Iodine-131, 57 ionization, 60 irradiation, 60 isotopes, 28 neutron, 26, 28 nucleus, 27, 29 pitchblende, 23 plutonium, 46 power plant, 42 pressurized water reactor, 43 proton, 26 radioactivity, 22 radioactive cocktail, 64 radioactive iodine, 57 radioisotope, 52, 64 radium, 23, 30, 32 Roentgen, Wilhelm K., 18 _Savannah_, 48, 49 thorium, 23, 30 tracers, 53 uranium, 20, 29, 30, 32, 43 uranium-234, 29 uranium-235, 29, 46 uranium-238, 29, 46 X rays, 18, 64