X Ray is a form of high energy electromagnetic radiation. The wave length of the electromagnetic radiation determines its energy and properties ranging from radiowaves (longest wave lengths) to microwave, millimeter or terahertz radiation to infrared, visible light to ultraviolet, X Rays and gamma rays.
X Rays are produced with beams of electrons in a vacuum tube strike a metal and decelerate emitting energy as X Rays.
Due to their high energy they can pass through the soft tissues of our body easily allowing us to see the skeleton inside (conventional X Ray).
DEXA scans that measure the Calcium inside our bones and CT scans are advanced applications of X Rays.
Read more: http://starradiology.com/x-ray.html
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