Dangers and Benefits of Nuclear Radiation

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Presentation transcript:

Dangers and Benefits of Nuclear Radiation 7.3

Dangers of Nuclear Radiation Background radiation: sun, soil, water, plants-non harmful Radiation can ionize atoms in living tissue, hemoglobin. Outer skin protects you Gamma rays=burns Radon-alpha Rn-222 produced from Earth’s crust. Destroy lung tissue.

Dangers Radiation sickness-danger of white blood cells, hair loss, sterility, bone necrosis, and cancer. Genetic Mutations-DNA molecules are damaged. Birth defects.

Thermal Radiation

Beneficial Uses of Nuclear Radiation Medicine, archeology, smoke alarms (alpha particles produce electric flow) Cancer treatment- chemotherapy Gamma rays-kill tumors Radioactive tracers-short-lived isotopes drug paths, water flow, tumors.

Nuclear Power Nuclear reactors- fission of U-235 Wastes go underground, w/o ground water near.

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