Читать книгу Patty's Industrial Hygiene, Physical and Biological Agents - Группа авторов - Страница 41

The objective of health physics practice is to keep the radiation dose to the worker ALARA below the statutory limits. The practice of radiation protection is a special application of the control of the working environment by engineering means. In principle, if the potentially hazardous source cannot be eliminated, one must first try to isolate the source. If that is not sufficient, an attempt is made to control the environment to minimize the worker's exposure, and if that still is not good enough, the worker is isolated. The exact manner of applying these general principles to radiation safety depends on the individual situation. In health physics practice, the problem is broken down into protection from external radiation and protection from personal contamination resulting from inhaled, ingested, or tactilely transmitted radioactivity.