X radiation is a type of electromagnetic radiation with a wavelength shorter than that of ultraviolet radiation. It is also known by many different names such as X-rays, roentgen rays, and Röntgen radiation after the scientist who discovered them. Other synonyms for X radiation include X-radiation, X-beams, X-rays, X-rays, and X waves. These high-energy photons can penetrate most materials, making them useful for medical imaging, material analysis, and security screening. However, overexposure to X radiation can be harmful to living organisms, as it can damage DNA and other biological molecules. Therefore, proper safety precautions are essential when handling or being exposed to X radiation.