X-rays are a form of electromagnetic radiation, similar to visible light. Unlike light, however, x-rays have higher energy and can pass through most objects, including the body. Medical x-rays are used to generate images of tissues and structures inside the body. If x-rays traveling through the body also pass through an x-ray detector on the other side of the patient, an image will be formed that represents the “shadows” formed by the objects inside the body.
How Do X-rays Work?
One type of x-ray detector is photographic film, but many other types of detectors are used to produce digital images. The x-ray images that result from this process are called radiographs.