Occupational Dosimetry - Video Lesson

Hey, everybody. Welcome back. This video is about occupational dosimetry. That is monitoring the dose to healthcare workers who work with ionizing radiation. Occupational dosimetry is necessary. Because United States federal law limits the amount of radiation that can be received by a health care worker during the year. The annual effective dose limit to the whole body is fifty millisieverts. The purpose of this limit is to minimize the probability of stochastic effects like cancer. The limit to the lens of the eye is one hundred fifty millisieverts for the year. The purpose of this limit is to prevent radiation induced cataracts. This dose limit is much higher than the whole body dose limit. Because cataract formation only takes place at much higher doses. The annual skin and extremity dose limit is even higher at five hundred millisieverts. The per