Background Gamma Radiation
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Introduction to Radiation
nuclearsafety.gc.caGamma decay takes place when there is residual energy in the nucleus following alpha or beta decay, or after neutron capture (a type of nuclear reaction) in a nuclear reactor. The residual energy is released as a photon of gamma radiation. Gamma decay generally does …
Glossary of Radiological Terms - CDC
emergency.cdc.govBackground radiation: ionizing radiation from natural sources, such as terrestrial radiation due to radionuclides in the soil or cosmic radiation originating in outer space. Becquerel (Bq): the amount of a radioactive material that will undergo one decay (disintegration) per second.
Doses from Medical X-Ray Procedures
hps.orggamma rays: Gamma rays are high‐energy electromagnetic radiation (photons) emitted in an attempt by the radionuclide to become stable, i.e., radioactive decay. Gamma rays have moderate‐to‐high penetrating power, are often able to penetrate deep into the body, and generally require some form of shielding, such as lead or concrete.
Absorbed Dose Determination in External Beam …
www-pub.iaea.orgterms of absorbed dose to water at the radiation quality of 60Co gamma rays. Some laboratories have extended calibrations to high energy photon and electron beams or are in the stage of developing the necessary techniques for these modalities. Following the recommendations in 1996 of the IAEA Standing Advisory Group
RADIATION PROTECTION N° 162 - European Commission
ec.europa.euRADIATION PROTECTION N° 162 Criteria for Acceptability of Medical Radiological Equipment used in Diagnostic Radiology, Nuclear Medicine and Radiotherapy Directorate-General for Energy Directorate D — Nuclear Safety & Fuel Cycle Unit D4 — Radiation Protection 2012