Monthly Archives: May 2008

Radiation is energy that moves through space from one object, the source, to another object where it is absorbed. Radiation sources are generally collections of matter or devices that convert other forms of energy into radiation. In some cases the energy to be converted is stored within the object. Examples are the sun and radioactive materials. In other cases the radiation source is only an energy converter, and other forms of energy must be applied in order to produce radiation; light bulbs and x-ray tubes are examples. Most forms of radiation can penetrate through a certain amount of matter. But Click Here To Read More