var nc = 26, fc = new Array(nc); fc[0] = {t:"Alpha (α) Decay",d:"A nuclear reaction in which an unstable nuclide spontaneously emits an alpha particle."}; fc[1] = {t:"Antimatter",d:"Particles that are the charge opposites of normal subatomic particles."}; fc[2] = {t:"Becquerel (Bq)",d:"The SI unit of radioactivity. One becquerel equals one decay event per second."}; fc[3] = {t:"Belt of Stability",d:"The region on the graph of number-of-neutrons versus number-of-protons that includes all stable nuclei."}; fc[4] = {t:"Binding Energy (BE)",d:"The energy released when nucleons combine to form a nucleus."}; fc[5] = {t:"Breeder Reactor",d:"A nuclear reactor in which fissionable material is produced during normal reactor operation."}; fc[6] = {t:"Chain Reaction",d:"A self-sustaining series of fission reactions in which the neutrons released when nuclei split apart initiate additional fission events and sustain the reaction."}; fc[7] = {t:"Critical Mass",d:"The minimum quantity of fissionable material needed to sustain a chain reaction."}; fc[8] = {t:"Curie (Ci)",d:"Non-SI unit of radioactivity; 1 Ci = 3.70 × 1010 decay events per second."}; fc[9] = {t:"Electron Capture",d:"A neutron-poor nucleus draws in one of its surrounding electrons, which transforms a proton in the nucleus into a neutron."}; fc[10] = {t:"Geiger Counter",d:"A portable device for determining nuclear radiation levels by measuring how much the radiation ionizes the gas in a sealed detector."}; fc[11] = {t:"Gray (Gy)",d:"The SI unit of absorbed radiation; 1 Gy = 1 J/kg of tissue."}; fc[12] = {t:"Ionizing Radiation",d:"The amount of energy needed to remove 1 mole of electrons from 1 mole of ground-state atoms or ions in the gas phase."}; fc[13] = {t:"Mass Defect (Δm)",d:"The difference between the mass of a stable nucleus and the masses of the individual nucleons that comprise it."}; fc[14] = {t:"Nuclear Chemistry",d:"The study of reactions that involve changes in the nuclei of atoms."}; fc[15] = {t:"Nuclear Fission",d:"A nuclear reaction in which the nucleus of an element splits into two lighter nuclei. The process is usually accompanied by the release of one or more neutrons and energy."}; fc[16] = {t:"Positron",d:"A particle with the mass of an electron but with a positive charge."}; fc[17] = {t:"Positron Emission",d:"The spontaneous emission of a positron from a proton-rich nucleus."}; fc[18] = {t:"Radioactive Decay",d:"The spontaneous disintegration of unstable particles accompanied by the release of radiation."}; fc[19] = {t:"Radiocarbon Dating",d:"A method for establishing the age of a carboncontaining object by measuring the activity of carbon-14 remaining in the object."}; fc[20] = {t:"Radiometric Dating",d:"A method for determining the age of an object based on the quantity of a radioactive nuclide and/or the products of its decay that the object contains."}; fc[21] = {t:"Radionuclide",d:"An unstable nuclide that undergoes radioactive decay."}; fc[22] = {t:"Relative Biological Effectiveness (RBE)",d:"A factor that accounts for the differences in physical damage caused by different types of radiation."}; fc[23] = {t:"Scintillation Counter",d:"An instrument that determines the level of radioactivity in samples by measuring the intensity of light emitted by phosphors in contact with the samples."}; fc[24] = {t:"Sievert (Sv)",d:"SI unit used to express the amount of biological damage caused by ionizing radiation."}; fc[25] = {t:"Strong Force",d:"The fundamental force of nature that keeps quarks together in subatomic particles and nucleons together in atomic nuclei."};