Radioactive materials are found naturally in the Earth. But even so, saying an area is radioactive may conjure up images of things you find in a sci-fi films including green glowing men and the ...

Since one sievert is a large quantity, radiation doses normally encountered are expressed in millisievert (mSv) or microsievert (µSv) which are one-thousandth or one millionth of a sievert. For ...

This rate of decay is constant for a given isotope, and the time it takes for one-half of a particular isotope to decay is its radioactive half-life. For example, about 1.5 percent of a quantity ...

We use this property of radiation to kill cancer cells as well as harmful bacteria and other micro-organisms. Alpha, beta and gamma radiations are all examples of ionising radiations. Alpha ...

As a result of the increased use of radioactive substances in, for example, industry, medicine and agriculture, shipments have become more frequent and larger in volume. In addition, transport safety ...

For example, carbon-14 decays to nitrogen-14 when it emits beta radiation. As this breakdown occurs, the activity of any radioactive source becomes less. This activity is measured in becquerels.

We think of radioactive material as something buried away in bunkers with bombs, power plants, and maybe some exotic medical equipment. But turns out, there are little bits of radiation in the ...