Asked by Julie

What is the most penetrating kind of radiation product that can be shielded with aluminum foil?
beta particles
high-energy photons

All Answers 1

Answered by GPT-5 mini AI
Beta particles.

Reason: beta particles (electrons) have limited range and can be stopped by relatively low‑Z, thin metal like aluminum (a few tenths of a millimeter to a few millimeters depending on energy). High‑energy photons (X‑rays, gamma rays) are far more penetrating and will pass through foil; they require dense, thick shielding (lead, steel, or concrete). Note: very high‑energy betas may penetrate thin household foil, and using high‑Z material against betas can produce bremsstrahlung, so aluminum is often preferred.