1. The neutron cross section is defined for a given type of target particle. 2. As the neutron energy increases, the neutron cross section of most isotopes decreases. 3. The cyclotron would be used for measurements of the neutron cross section of plutonium. 4. It is also dependent on the nuclei it strikes and its neutron cross section . 5. And he designed the reactor oscillator, a machine used to measure neutron cross sections . 6. The larger neutron cross section , the more likely a neutron will react with the nucleus. 7. Enrico Fermi's purported comment when he observed the neutron cross section for boron, " My God! 8. The lanthanides have large neutron cross sections and hence they would poison a neutron driven nuclear reaction. 9. Another, "'Sombrero "', uses a reaction chamber built of Carbon-fiber-reinforced polymer which has a very low neutron cross section . 10. The 10 B isotope is useful for capturing thermal neutrons ( see neutron cross section # Typical cross sections ).
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