Radiology, or diagnostic imaging, uses X-rays and other types of energy to create images of parts of the body. These images allow doctors to diagnose and treat illnesses. These images include X-rays, CT scans, MRIs, and ultrasounds.
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X-Ray
X-rays use radiation to produce images of structures within the body. They are used to diagnose broken bones, fractures and certain types of cancer. Unlike ultraviolet light which has a higher energy, X rays are much lower in wavelength and have a much lower amount of energy. While X-rays do pose some risk, it is minimal and far outweighed by the benefits.
X-rays are initially invisible to the human eyes. However, a few months after Rontgen’s discovery, Brandes conducted an experiment that allowed him to see the images. His results confirmed Rontgen’s observations.
In X rays, lower energy X-rays are absorbed by the human body and do not contribute to the image. To avoid this, an aluminium coating is usually placed over the X-ray tube window to “harden” the beam, shifting it towards higher energy X-rays. For a conventional X-ray, you won’t need to prepare for it in any special way. A parent or carer can stay with children during the procedure in order to reassure them and help them remain still. A radiologist will then assess the images. You may feel some discomfort during the X-ray but it is usually short.