| Radiolucency and Radiopacity: Ability to penetrate | | | | affected images of bone and other hard materials are |
| different substances to varying degrees. X-rays pass | | | | visible for the diagnosis of fracture etc. |
| through the different types of substances in the human | | | | Nature of Invisibility: We cannot distinguish x-rays by |
| body such as calcium material in bones, water particle | | | | our eyes. We cannot percept x-rays by any of our |
| in the blood and lymph vessels, fat materials, muscles, | | | | other sense organs like ears or skin too. They are |
| and air space in the lungs, so as to give the image of | | | | very harmful and so one should be prevented from |
| that to diagnose. Radiolucency is the characteristic | | | | the exposure of x-rays. The mask used to avoid its |
| feature in which x-rays penetrate through lighter | | | | exposure is called film badge. The special kind of films |
| substances in the body like air in the lung and water in | | | | in the film badge are exposed by x-rays and so |
| the blood, and muscles and form a black image. | | | | exposure is avoided. X-rays will be scattered when |
| Radiopacity is the characteristic feature of the x-ray in | | | | they come into contact with any other material across |
| which it cannot penetrate through densest hard | | | | them. The more the density of the particle the more |
| substances like bone and metals inside the body and | | | | the scattering will occur. |
| form an image that is whit in color. | | | | Whenever x-rays pass through substances they |
| Air is the smallest amount of thick material in the body | | | | ionize the materials i.e. neutrally charged particles |
| and so displays the utmost transmission of x-rays. At | | | | become charged particles. When a particle is charged |
| the same time fat is the denser material, water is | | | | and becomes particles called ions. These charging |
| more dense than fat, and metal is the densest. When | | | | activity of x-rays will be of greatly helpful in killing |
| x-rays pass the through these materials the densest | | | | cancer cells in our body on the contrary to that normal |
| metals and calcium did not permit them to pass | | | | cells when exposed by x-rays may get ionized and |
| through them, but other rays pass through other fat, | | | | develop thyroid tumors, breast cancer, leukemia, etc. |
| muscles, air will focus on the photographic plate. So the | | | | |