Uses of Nuclear Reactions

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Presentation transcript:

Uses of Nuclear Reactions

Fission vs. Fusion Splitting of large nuclei into smaller Releases lots of energy (106 times a chem rxn)(E=mc2) Occurs in nuclear power plants Atomic bomb Combining smaller nuclei into larger Releases even more energy than fission (3-4 times greater) Occurs in sun/stars H-bomb, thermonuclear bomb

Fission reaction

Fusion

Nuclear power plant

Nuclear Power Plant

Nuclear Power Plant Control Rods: Cadmium (Cd): absorb n0 Moderator: water or graphite: slow n0 Fuel: U-235

Detection Film badge: photographic paper that gets exposed. Used only to monitor, not detect Geiger Counter: gas filled tube to detect radiation through audible clicks Scintillation Counter: phosphor-coated surface that produces flashes of light when exposed to radiation

Uses of Radiation Smoke detectors: Americium-241] Food irradiation: Cobalt-60 (gamma) Radioactive tracers to: Study processes in plants (P-32) Diagnose medical conditions Thyroid disorders: Iodine-131 Bone scans: Te-99 Medical treatment: cancer

Specific Uses of Tracers

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