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radiation field |
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radiation field [‚rād·ē′ā·shən ‚fēld] (electromagnetism) The electromagnetic field that breaks away from a transmitting antenna and radiates outward into space as electromagnetic waves; the other type of electromagnetic field associated with an energized antenna is the induction field. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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| The mid-1960S detection of the cosmic microwave background, a pervasive radiation field predicted by Big Bang theorists, turned professional opinion in cosmology sharply away from the steady state. However, electron microscopy definitively confirmed that the first neoplasm was epithelial in origin and that the second tumor was a sarcoma that had arisen in the radiation field rather than a recurrence of the original tumor (figure 2). The potential confounders considered included smoking (never or ever), education at the time of the accident ([is less than] 12 or [is greater than or equal to] 12 years), work in a radiation field (ever, never, or unknown), and external background radiation (low, low medium, or high). |
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