Which type of radiation is penetrating-low and shielded by paper or clothing, hazard if inhaled or ingested?

Study for the NANTeL Radiation Worker Training Test. Learn with multiple choice questions covering essential safety procedures. Equip yourself with answers, hints, and explanations. Prepare thoroughly for your certification exam!

Multiple Choice

Which type of radiation is penetrating-low and shielded by paper or clothing, hazard if inhaled or ingested?

Explanation:
Alpha radiation has very limited penetration in matter, so a sheet of paper or the outer layer of clothing can stop it. However, it becomes highly dangerous if it is inhaled or ingested because inside the body it deposits a lot of energy in nearby tissues. That combination—easy shielding externally but severe internal hazard—fits alpha radiation best. The other types penetrate more and require different shielding, so they don’t match the description.

Alpha radiation has very limited penetration in matter, so a sheet of paper or the outer layer of clothing can stop it. However, it becomes highly dangerous if it is inhaled or ingested because inside the body it deposits a lot of energy in nearby tissues. That combination—easy shielding externally but severe internal hazard—fits alpha radiation best. The other types penetrate more and require different shielding, so they don’t match the description.

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