Assertion: radiation's source | /r/HasProperty | radioactive
Facets:
value: no longer
type: TEMPORAL
Source sentences:
text: Internal radiation, also called Brachytherapy (BT), uses radioactive sources that are placed directly into a body cavity or the tissue of a tumour.
text: If the source of the ionizing radiation is a radioactive material or a nuclear process such as fission or fusion, there is particle radiation to consider.
text: A common source of ionizing radiation is radioactive materials that emit α, β, or γ radiation, consisting of helium nuclei, electrons or positrons, and photons, respectively.
text: A permanent implant remains in the body after the sources are no longer radioactive.
text: In the alternative, she can administer the radiation therapy from sources that are radioactive and that are internal, called brachytherapy.
text: A person contaminated with radioactive material will receive radiation exposure until the source of radiation (the radioactive material) is removed.