The phrase "a source of radiation" is correct and usable in written English.
It can be used in contexts discussing physics, health, or environmental science, where radiation is a relevant topic.
Example: "The nuclear power plant is considered a significant source of radiation in the surrounding area."
Alternatives: "a radiation emitter" or "a radiation source".
Each of these methods involves a source of radiation, a sample, and a device for detecting and analyzing radiation.
Even if the dogs were to close in on a source of radiation in Iraq, they would not necessarily see much more than weapons inspectors have.
It is a source of radiation hazard for miners as well as for inhabitants of adjacent lands.
We interpret these organs as being eyes adapted for detection of low-level illumination and suggest that they evolved in response to a source of radiation associated with the environment of hydrothermal vents.
Its radiation effects, therefore, have been studied because it enters the cell without becoming a part of deoxyribonucleic acid and thus provides a source of radiation outside the deoxyribonucleic acid molecule.
Yet, as we now well know, radium is a source of radiation poisoning - if ingested, it could lead to anaemia, bone fractures, necrosis of the jaw, and leukaemia.
CT uses a source of ionising radiation for imaging and, therefore, adds significant radiation dose to the overall examination [17], which may raise concerns in selected populations like adolescents and women [18].
Now in its third version as DORIS III, this machine is no longer used as a collider; its electron beam serves as a source of synchrotron radiation (mainly at X-ray and ultraviolet wavelengths) for the Hamburg Synchrotron Radiation Laboratory (HASYLAB).
Each instrument consists of at least three essential components: (1) a source of electromagnetic radiation in the proper energy region, (2) a cell that is transparent to the radiation and that can contain the sample, and (3) a detector that can accurately measure the intensity of the radiation after it has passed through the cell, and the sample.
Additionally, 192Ir is used as a source of gamma radiation for the treatment of cancer using brachytherapy, a form of radiotherapy where a sealed radioactive source is placed inside or next to the area requiring treatment.
"The facts are that indoor tanning is a source of ultraviolet radiation, period.
