| 11. | He says the Spallation Neutron Source will restore U . S . leadership in the field.
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| 12. | This isotope is generated by spallation reactions on magnesium, sodium, silicon, and aluminium.
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| 13. | These isotopes are obtained by nuclear fission or proton induced spallation of heavy elements as uranium.
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| 14. | It is practiced at research reactors and spallation neutron sources that provide neutron radiation of sufficient excitations.
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| 15. | Recently there has been the development of spallation sources which can create a rapid pulse of neutrons.
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| 16. | Laser energy is used for the process of thermal spallation, melting, or evaporation of rock.
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| 17. | Since 1976 he has been working at the Forschungszentrum J�lich, doing research on spallation neutron sources.
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| 18. | Traditionally, nuclear reactors have been used, although sources producing neutrons by spallation are becoming increasingly available.
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| 19. | Peak dynamic pressure can also influence the selection of the outermost TPS material if spallation is an issue.
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| 20. | The spallation process at SNS begins with negatively charged hydrogen ions that are produced by an ion source.
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