Gamma Rays

Gamma rays are very high energy electromagnetic radiation, with a shorter wavelength than X-rays. They are produced by the decay of radioactive nuclei, or by extremely high temperature processes, such as those found in the centers of stars or when matter and antimatter particles collide. Gamma rays are used in a variety of medical, industrial, and scientific research applications. For example, they are used in medicine to kill cancer cells, in industry to detect flaws in materials and structures, and in research to study deep space objects and processes. Gamma rays are also used in astronomical observations. These rays can penetrate dust and gas clouds and reveal some of the most distant objects in the universe, as well as some of the most energetic processes taking place there.