Nuclear reactors are still the primary source for strong neutron beams to create isotopes for geologic dating, radiography and medicine, but researchers have now enlisted engineering students in building a tabletop neutron source that could be nearly as effective. A new study shows that the high flux neutron generator can date rocks as old as 1 million years, as well as fine-grained materials like lavas and clays, extending the usefulness of argon-argon dating.... SCIENCE DAILY · 5 months
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