| 21. | It includes the study of the production and use of radioactive sources for a range of processes.
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| 22. | In food " irradiation, " a radioactive source fries bacteria and microorganisms on meat and other foods.
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| 23. | A European Union study estimated that about 70 radioactive sources are lost every year from regulatory control.
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| 24. | Say you build a probe that heats only part of its exterior using an internal radioactive source.
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| 25. | "We'll be using actual radioactive sources so they can see the way the detection equipment responds ."
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| 26. | Consequently, a secondary and a field calibration is achieved with a portable jig carrying a small radioactive source.
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| 27. | Or has the radioactive source died?
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| 28. | Three years after the Sept . 11 attacks, federal authorities have made progress toward rounding up radioactive sources.
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| 29. | Modern density tools utilize a Cs-137 radioactive source to generate gamma rays which interact with the rock strata.
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| 30. | The radioactive source is in red, the shielding is blue / green, and the gamma rays are yellow.
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