High-energy electromagnetic radiation emitted from the nucleus of a radioactive atom during nuclear decay. Gamma rays have very short wavelengths (<0.01 nm) and high penetrating power, requiring thick lead or concrete shielding. They carry no charge and no mass.
Gamma radiation consists of very high-energy photons (electromagnetic radiation) emitted from atomic nuclei during radioactive decay or nuclear reactions. It typically accompanies alpha or beta decay as excited daughter nuclei relax to their ground state. Gamma rays have no mass or charge, making them the most penetrating form of ionising radiation, requiring lead or thick concrete for shielding. Gamma emitters include ⁶⁰Co, ¹³⁷Cs, ²²⁶Ra.
Uses & Applications
Gamma radiation is used in: medical imaging (γ camera, SPECT using ⁹⁹ᵐTc), cancer radiotherapy (γ knife radiosurgery), food irradiation (sterilisation using ⁶⁰Co), industrial radiography (weld inspection), sterilisation of medical devices, and scientific research (activation analysis, Compton and photoelectric studies).
Safety Information
Gamma radiation causes deep tissue damage, DNA double-strand breaks, and is a carcinogen. Shielding with lead or concrete (multiple half-value layers) is required. Distance and time minimisation are key (inverse-square law). Strict regulatory oversight and dosimetry monitoring apply to all gamma sources.
Always consult the SDS/MSDS before handling any chemical. This information is for educational purposes only.
High-energy electromagnetic radiation emitted from the nucleus of a radioactive atom during nuclear decay. Gamma rays have very short wavelengths (
Gamma radiation is used in: medical imaging (γ camera, SPECT using ⁹⁹ᵐTc), cancer radiotherapy (γ knife radiosurgery), food irradiation (sterilisation using ⁶⁰Co), industrial radiography (weld inspection), sterilisation of medical devices, and scientific research (activation analysis, Compton and ph…
Gamma radiation causes deep tissue damage, DNA double-strand breaks, and is a carcinogen. Shielding with lead or concrete (multiple half-value layers) is required. Distance and time minimisation are key (inverse-square law). Strict regulatory oversight and dosimetry monitoring apply to all gamma sou…
The formula or notation for Gamma Radiation is: γ radiation; λ < 0.01 nm
Editorial standards: Chemical data is sourced from peer-reviewed literature,
CAS Registry, NIST WebBook, and PubChem. Safety information reflects guidance from OSHA, ECHA,
and IAEA. For educational purposes only — always consult official SDS documentation and qualified
professionals before handling chemicals.
