Lecture 15: Nuclear Reactions RELEVANCE: Basic Research reaction mechanisms structure exotic nuclei Applications: analytical tool – neutron activation analysis astrophysics – origin of elements space radiation effects satellites, Mars landing materials science Tc(high) superconductors medical therapy tumor treatment nuclear power – 25% of U.S. electricity DEFINITION: A collision between two nuclei that produces a change in the nuclear composition and/or energy state of the colliding species ; i.e., 2ndorder kinetics 1. Nomenclature A. Constituents 1. Projectile: nucleus that is accelerated (v > 0) ; 0 2 1012eV a. neutrons – reactors b. light ions – A 4: AGS (NY), FNAL (IL) c. heavy ions – A > 4 U: ANL (IL), MSU (MI), TAMU (TX), RHIC (NY) d. electrons (and photons) SLAC (CA), CEBAF (VA), MIT (MA) e. exotic beams: , K, p: FNAL f. radioactive beams: MSU, ANL (IL) HHJRF (TN) 2. Target: fixed (v = 0), usually But now have colliding beams, RHIC, FNAL
has intentionally blurred sections.
Sign up to view the full version.