Written by the Fiveable Content Team โข Last updated September 2025
Verified for the 2026 exam
Verified for the 2026 examโขWritten by the Fiveable Content Team โข Last updated September 2025
Definition
Gamma rays are extremely high-frequency, high-energy photons in the electromagnetic spectrum emitted by radioactive substances or during nuclear reactions.
Related terms
Radiation Therapy: A treatment method where gamma rays are used to destroy cancerous cells without harming surrounding healthy tissue.
Nuclear Fission: A process where an atomic nucleus splits into two smaller nuclei releasing energy and often emitting gamma rays.