Unformatted text preview: (second barrier), there should be only small releases to the atmosphere because of the last fission product barrier, the containment. During the accident at Three Mile Island, there was severe core damage and some melting of the core and the primary coolant system did fail but only a small amount of fission products were released because of the effectiveness of the containment. Although all three of these boundaries exist to prevent the inadvertent release of fission products to the environment, like all man-made things, they may fail or partially fail to perform their intended function. The failure of these boundaries may then result in the release of radioactive material to environment....
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- Spring '10
- Three Mile Island accident, containment building, fission product barrier