Which part of the body does alpha radiation affect?

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Study for the Ontario Power Generation (OPG) Orange 1 Test. Ace your exam with multiple choice questions and detailed explanations. Prepare confidently!

Multiple Choice

Which part of the body does alpha radiation affect?

Explanation:
Alpha radiation consists of heavy, highly ionizing particles that travel only a short distance. Because of this low penetrating power, it cannot pass through the outer skin, so external exposure mainly spares deeper tissues. The real risk occurs when alpha-emitting materials are inside the body, such as after inhalation or ingestion. Inhaled alpha emitters tend to settle in the lungs, delivering a concentrated dose to lung tissue and increasing the risk of damage and cancer there. So the part of the body most affected by alpha radiation in typical exposure is the lungs.

Alpha radiation consists of heavy, highly ionizing particles that travel only a short distance. Because of this low penetrating power, it cannot pass through the outer skin, so external exposure mainly spares deeper tissues. The real risk occurs when alpha-emitting materials are inside the body, such as after inhalation or ingestion. Inhaled alpha emitters tend to settle in the lungs, delivering a concentrated dose to lung tissue and increasing the risk of damage and cancer there. So the part of the body most affected by alpha radiation in typical exposure is the lungs.

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