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IODINE-131. PROPERTIES OF IODINE-131. Radioactive iodine Produced by the fission of uranium atoms during operation of nuclear reactors Also produced by plutonium/uranium in the detonation of nuclear weapons Has a half-life of about 8 days Emit beta particles upon radioactive decay
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PROPERTIES OF IODINE-131 • Radioactive iodine • Produced by the fission of uranium atoms during operation of nuclear reactors • Also produced by plutonium/uranium in the detonation of nuclear weapons • Has a half-life of about 8 days • Emit beta particles upon radioactive decay • 53 protons, 78 neutrons
MEDICAL USES • Treats Hyperthyroidism (thyroid gland is overactive and produces too much thyroxin) • Treats some types of thyroid cancer
INDUSTRIAL USES • Localize leaks in drinking water supply systems • Common gamma-emitting industrial tracer to determine underground flows and leaks
WHY IODINE-131? • The thyroid gland absorbs Iodine • Substance is easily excreted • Short range of radiation only concentrated in a certain area • Dissolves in water easily ingested