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In general, the point of origin. For example, the source of a sound wave is where it originates from.
In general, the point of origin. A radioactive source is a quantity of a radioactive isotope used to produce ionising radiation. These are found in many applications, from medical and industrial x-ray scanners, to everyday devices such as smoke detectors.
A radioactive source is a quantity of a radioactive isotope used to produce ionising radiation. These are found in many applications, from medical and industrial x-ray scanners, to everyday devices such as smoke detectors.