radioactive lead

radioactive lead

Any of the radioactive isotopes of lead, which are part of the natural decay chain of 238U: 218Po is an alpha emitter with a half-life of 3.1 minutes; this becomes 214Pb, a beta emitter with a half-life of 27 minutes; this becomes 214Bi, another beta emitter, which has a half-life of 20 minutes; this becomes 214Po, an alpha emitter with a half-life of 160 microseconds; this becomes 210Pb, a beta emitter with a half-life of 22 years; this becomes 210Bi, another beta emitter, which has a half-life of 5 days; this becomes 210Po, an alpha emitter with a half-life of 140 days; finally ending in 206Pb, a stable nuclide.
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Next month, for instance, Mark Baskaran of Wayne State University in Detroit expects to start measuring radioactive lead in samples of bowhead bone.
A Kobe-based scrap iron dealer informed the Science and Technology Agency on Tuesday that it has detected a radioactive lead container in a batch of scrap metal it collected, agency sources said.
However, he had used radioactive lead, and lead is not a natural component of tissue, so that its presence might well have interrupted the natural flow of chemical reactions there.
The Texas waste disposal authority reports that at Fermilab, Tunnel emergency light batteries are activated by neutrons, and when replaced, the radioactive lead is a problem.
The Science and Technology Agency on Thursday said it found radium ray sources in a radioactive lead container that a scrap iron dealer came across in a pile of scrap metal in Kobe earlier this week.

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