About the Power Reactor Section (PRS)
- Bylaws of the Power Reactor Section of the Health Physics Society
- POWERNET: Internet Communication for the Radiation Safety Community
Presentations on Nuclear Power
Radiation Science Lessons
- What is Radiation?
- Nuclear Reactors
- Radiation Lab
- Natural and Man-made Radiation Sources
- Natural Exposure Pie Chart
- Total Exposure Pie Chart
NCRP Report No. 160 Section 3 Pie Charts:
- Fig. 8.2. Distribution of S or EUS for the major sources of exposure for 2006. The percent values have been rounded to the nearest 1 %. The total for S is 1,870,000 person-Sv and the total for EUS is 6.2 mSv, using a U.S. population of 300 million for 2006. The other background category consists of the external (space and terrestrial) and internal subcategories [see Table 8.1 for the values of S (person-sievert) and EUS (millisievert)].
- Fig. 3.19. Percent contribution of various sources of exposure to the annual EExp for ubiquitous background radiation (3.1 mSv) for 2006. The same percentages apply for S and EUS. The percent values have been rounded to the nearest 1 %, except those <1 % [see Table 3.14 for the values of EExp (millisievert)].





