Abstract: The effect of radiological protectionof a newly built digitized X-ray photography system room at a hospital is evaluated according to the relevant national standards. The effective dose is workedout to be 1.60×10^-6-3.65×10^-5 mSv/a from the actual dose rate, which is in turn obtained via correcting measuring instrument readings for the response time and dose verification factor. It indicates that the radiological protection installation is in line with national standards, and able to protect occupational and public health and safety.

Key words: Evaluation, Occupational Hazard, Radiological Protection, Radiation Source