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US EPA Radiation Protection

US EPA Radiation Protection

This website is from the US Environmental Protection Agency on Radiation Protection. It gives an overview of the basics including: Exposure to Gamma Radiation, Health Effects, and Protecting People from Gamma Radiation A gamma ray is a packet of electromagnetic energy--a photon. Gamma photons are the most energetic photons in the electromagnetic spectrum. Gamma rays (gamma photons) are emitted from the nucleus of some unstable (radioactive) atoms.

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