[Computerized bone mineral measurement. Radiation protection and legal aspects]

We begin by defining the standard units utilized in dosimetry and we illustrate the risks related to the interaction of ionizing radiation with living matter. Next we summarize the basic elements of radioprotection such as the physical and medical control of the employees and the inspection by the official authorities. Finally we consider the specific aspects of radioprotection in bone mineral measurement, in relation both with dosimetry and with the existing legislation on the matter.