What type of radiation is used in radioactive dating

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Radioactive sources (most commonly Technetium-99 or sometimes Iodine-123) can be used by doctors to find out if different organs in our bodies are working properly (eg. Doctors can inject a small amount of radioactive substance into a patient's body.

This substance is carried by the blood to the organ, eg the kidneys or the thyroid gland, that the doctor wants to examine. Tracers are chosen which will concentrate in the part of the body to be investigated, and the tracer's radiation will also be concentrated there.

There's a small amount of radioactive carbon-14 in all living organisms.

When they die no new carbon-14 is taken in by the dead organism.

C and counting the amount of each) allows one to date the death of the once-living things.

Perhaps you have heard of Ice Man, a man living in the Alps who died and was entombed in glacial ice until recently when the ice moved and melted.

Additionally, elements may exist in different isotopes, with each isotope of an element differing in the number of neutrons in the nucleus.The technique of comparing the abundance ratio of a radioactive isotope to a reference isotope to determine the age of a material is called radioactive dating.Many isotopes have been studied, probing a wide range of time scales.In industry they can be used to: find leaks or blockages in underground pipes find the route of underground pipes track the dispersal of waste To locate a leak in an underground pipe a very small amount of radioactive material that gives off gamma rays is put into the pipe.A detector is moved along the ground above the pipe.

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