How are X-rays Made?
A X-ray image or radiograph, is produced when a small amount of radiation passes through a body part and is recorded on film, video or computer to produce a black-and-white anatomical image. Areas that are difficult for X-rays to penetrate, such as bone, appear white on the X-ray film. Areas that the X-rays penetrate easily, such as the lungs and other areas filled with air, appear black. Soft tissues, vessels and organs appear as shades of gray on the image depending on their density.
