ABSTRACT
This chapter discusses the principle of as low as reasonably achievable and appreciates its implications. It explains the components of the tripartite principle used to minimize external exposure to radiation, describes the purpose of protective clothing, and discusses some considerations for selecting protective clothing. The chapter deals with the process of removing protective clothing and examines the basic principle applied to accident response when working with Naturally Occurring Radioactive Material (NORM). It focuses on the assessment of external and internal committed doses. Information derived from such monitoring can be used to assess the risk to outside personnel and the environment arising from the presence of NORM. The chapter considers some of the benefits of training in the principles and practices of radiation protection from NORM. The primary reason for controlling surface contamination is to minimize the possibility of inhalation or ingestion of radioactive material. In addition, surface contamination is controlled to reduce the possibility of any spread of radioactive material.
