PHYS-2506EL Lecture Notes - Lecture 9: Technetium-99M, Nuclear Reaction, Radionuclide
9 Oct 2015
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Document Summary
Decay mode, way in which something decays, different decay modes exist. Isometric transition: only decay mode in which the nucleus retains is structure, only change is in energetic state (cid:1) parent in excited state (cid:1) daughter in ground (unexcited) state. Involves free radicals: medically interesting nuclear reactions, not spontaneous. 1: q means that energy is required; the reaction is endothermic. Therefore, the alpha particle must have a kinetic energy of at least 1. 19 mev for this reaction to occur. Coulombic force: threshold energy (cid:1) energy needed for a reaction to occur, first nuclear reaction observed, dream of alchemists, the (p, n) reaction (cid:1) proton knocks out a neutron (cid:1) 5 (cid:1) (cid:1) xused for boron capture therapy (cid:1) while eli and e cannot be predicted exactly, eli + e = 2. 31 mev. 27: the ( , n) reaction/the activation reaction. 0 (cid:1) a gamma ray knocks out a neutron. (cid:1) (cid:1) g.
