X-rays use a type of electromagnetic radiation called X-rays, which are a high-energy form of electromagnetic radiation. X-rays have shorter wavelengths and higher frequencies compared to visible light. They are produced by accelerating charged particles, typically electrons, to high speeds and then allowing them to collide with a target material. This collision results in the emission of X-ray photons. X-rays are commonly used in various applications, including medical imaging, security screening, and scientific research, due to their ability to penetrate matter and provide valuable information about the internal structure of objects.