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بسم الله الرحمن الرحيم. Radioactive waste management . Presented by:Hajo Idriss Researcher Sudan atomic energy commission RSI hjoidriss@gmail.com. Radioactive waste . Define as the type of waste consist of radionuclides exceed the level a adopted by IAEA.
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بسم الله الرحمن الرحيم Radioactive waste management Presented by:Hajo Idriss Researcher Sudan atomic energy commission RSI hjoidriss@gmail.com
Radioactive waste Define as the type of waste consist of radionuclides exceed the level a adopted by IAEA
Philosophy of radioactive waste management Protection of people and environment from the harmful effects of ionizing radiation
Basic concept radiation protection • Time • Shielding • Distant
Sources of radioactive waste • Oil drilling : NORM waste {238U ,226Rn 222Rn} • Mining : {238U ,226Rn 222Rn} • Medical : {60Co ,137Cs and 125,131I} • Industry : {90Sr ,192Ir and Am Be } • Reactor {Spent fuel and Fuel processing} • Military :depleted uranium
Spent fuel NORM
Military industry Medical
Classification of radioactive waste Type of radiation physical Properties chemical Properties activity Half-life gamma Liquid high long Acidic neutron gas intermediate medium Alkaline alpha low beta short Solid
Applicability • Planning assumptions • Concept of operations • Logistics • Plan maintenance
Health risk of radioactive material • How does radioactive material case health effect ? • strip away electrons from atoms • break some chemical bonds
What kinds of health effects does exposure to radiation cause? • stochastic • non-stochastic
Is any amount of radiation safe? There is no firm basis for setting a "safe" level of exposure above background for stochastic effects.
How do we know radiation causes cancer???????????????????? (depend on human immune system)
Aren't children more sensitive to radiation than adults? • Yes, because • children are growing more rapidly • there are more cells dividing
Type of radiation exposure Inhalation Ingestion
Ingestion Internal External
Health effect of radioactive material health effect of radiation DU 60Co