EESA10H3 Lecture 6: information from lecture slides + information added by prof during lecture
13 Apr 2011
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We cannot escape radiation exposure; it is all around us, different types of radiation have different affects on us. Natural radiation (sunlight, cosmic rays from outer space) cannot be controlled, manmade radiation (x-ray machines, microwaves, lasers, radar devices) can be controlled. Non-ionized radiation is low energy radiation that cannot do much to an atom (does not exhibit enough energy to change atoms) Non-stochastic health effects: result from short term, high levels of exposure, increased levels of exposure make the effects more severe www. notesolution. com: high levels of radiation cause radiation sickness (nausea, weakness, hair loss, etc. ) Some scientists believe that low levels of radiation are beneficial. Radiation was first observed to be related to cancer in. Chemical properties determine where health effects occur. Used in cooking because the radiation is absorbed by food, once it is absorbed by food, it becomes heat.
