1mass noun Sweets; confectionery. as modifier âa candy barâ. count noun âpink and yellow candiesâ. âUnlike refined sugars found in candy and desserts, these simple sugars bring energy in a nutritious way.â. âSimple sugars such as candy and sodas will give you a quick energy high and then drop you flat in mood and strength.â. âI answer through a mouthful of chocolate candies.â.
Positrons are the same in the sense that they don't penetrate far into the skin, but when they collide with a particle in your body, gamma rays are generated by matter-antimatter annihilation. And gamma rays are very bad for you, indeed, as they have both high energy and can easily pass through your tissues.
The soft tissue in your body is composed of smaller atoms, and so does not absorb X-ray photons particularly well. The calcium atoms that make up your bones are much larger, so they are better at absorbing X-ray photons. In the next section, we'll see how X-ray machines put this effect to work.-rays are basically the same thing as visible light rays. Both are wavelike forms of electromagnetic energy carried by particles called photons (see How Light Works for details).