Overview of the principles of radiation protection and radiobiology. Radiation protection responsibilities of the radiographer for the patient, personnel, and the public are presented. The concepts of As Low As Reasonably Achievable (ALARA), Negligible Individual Risk Level (NIRL), and stochastic and non-stochastic effects are discussed and compared with the concept of Maximum Permissible Dose (MPD). Discussion includes an overview of regulatory agencies and their involvement in radiation protection. In addition, the basic effects of ionizing radiation on cells and the human body are discussed. Emphasis on the effects of x-radiation for Radiography students, (Formerly RAD222) 3 Credits (3 Lecture) Prerequisite(s): RAD113 and RAD114 and RAD115 and RAD116 and RAD117 and RAD118 and RAD201. Corequisite(s): PHS222. Fall Only.