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boron-10 |
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boron-10 [′bȯ‚rän ′ten] (nuclear physics) A nonradioactive isotope of boron with a mass number of 10; it is a good absorber for slow neutrons, simultaneously emitting high-energy alpha particles, and is used as a radiation shield in Geiger counters. 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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Federman of the University of Toledo in Ohio and his colleagues, including Lambert, used the Goddard spectrograph to measure the relative abundances of boron-10 and boron-11 along the line of sight to three stars in the nearby interstellar medium. The collisions would produce twice the measured ratio of boron to beryllium and only half the observed abundance of boron-11 to boron-10. Kahl and his colleagues at the University of California, San Francisco, deeloped the molecular "package bomb" as a 20-sided solid with one atom of boron-10 -- a neutron-absorbing isotope of boron--at each of the molecule's 12 corners. |
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