Penetration, Contamination, and Medical Uses

Recall how gamma rays, beta particles and alpha particles differ in their penetrating properties.
Recall how irradiation differs from contamination, and compare the hazards that each one poses.
Describe the different uses of nuclear radiations for the exploration of internal organs, and for the control or destruction of unwanted tissue.
Explain how ionizing radiation can have hazardous effects, notably on human bodily tissues.
Explain why radioactive materials pose different hazards depending on the type of radiation they emit and their half-life.

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