As a rule, radiographers are never in the room while administering X-rays. Once the patient's body is positioned as necessary for images of specific body parts, then the technician steps behind an insulated -- usually with lead -- wall to protect him- or herself from the long-term affects of radiation. Advances in imaging technologies have not changed that basic protocol.
When a patient is being X-rayed, he or she is exposed to levels of radiation that are harmless in very limited doses, and even then precautions are taken to protect areas of the body not being targeted from exposure (the reason the dentist drapes a lead apron over your torso when administering dental X-rays, for instance). For a radiographer who is administering X-rays on a daily basis, the accumulated effect of prolonged exposure would be extremely dangerous. That is why radiographers remove themselves from the immediate area when actuating the X-ray beam.