These materials must be disposed of as low-level waste. Millirem A unit of radiation dosage equal to one-thousandth of a rem. An individual member of the public can receive up to 500 millirems per year according to federal standards. This limit does not include radiation received for medical treatment nor does the limit include the 300 millirems people receive annually from background radiation. Neutron An uncharged particle with a mass nearly equal to the mass of a proton.
Neutrons are the particles that sustain a chain reaction in a nuclear reactor.
Neutrons can be shielded by water. NRC Acronym for Nuclear Regulatory Commission. An agency of the federal government which has the authority to regulate, inspect, and oversee all activities involved with nuclear power generation to assure the safety of U.S. Nuclear power plants. Nuclear Power Plant A facility designed to convert nuclear energy into electricity. Proton A subatomic particle with a positive electric charge and a mass 1,837 times that of an electron.