At a physician's request, the technologist uses equipment that emits x-rays to produce images of a body part or system.
Most radiological procedures involve only a short exposure of low-level radiation.
Protective coverings can be placed on the patient to help minimize their exposure. Technologists wear protective clothing or stand behind protective barriers to avoid unnecessary exposure to radiation. Technologists are responsible for the quality of the x-ray images and for providing the correct view of specific body structures or systems, whether it be on film, a computer monitor, or a television.