Hierarchy classification:

1. top of the aat hierarchies
2. Associated Concepts Facet
3. Associated Concepts (hierarchy name)
4. scientific concepts
5. physical sciences concepts
6. physics concepts
7. [energy and related concepts]
8. energy
9. radiation (energy)
10. electromagnetic radiation

Anotations

Scope note:

Highly energetic electromagnetic radiation with a very short wavelength emitted during radioactive decay. Gamma rays are essentially very short x-rays and penetrate matter deeply. Gamma radiation is used in radiography and as an exterminant and sterilizing agent, which kills insects, molds, bacteria, or fungi.