How X-rays work?
X-rays are a type of radiation that can pass through the body. They can’t be seen by the naked eye and you can’t feel them. An X-ray tube inside the x-ray machine sends out a beam of radiation. As the radiation pass through the body, tissues in the body absorb or block the radiation to varying degrees. Dense tissues such as bones block most radiation, but soft tissues, like fat or muscle, block less. After passing through the body, the beam hits the detector. Tissues that block high amounts of radiation, such as bone, show up as white areas on a black background. Soft tissues block less radiation and show up in shades of gray. Organs that are mostly air, such as the lungs, normally look black.
The amount of radiation you get from an x-ray is small. For example, a chest x-ray gives out a radiation dose similar to the amount of radiation you’re naturally exposed to from the environment over 10 days.