Abstract
THE occurrence of voids induced by fast neutrons in metals is a matter of considerable concern because of the restrictions these defects can impose on the design of fast power reactors. Void formation is invariably accompanied by swelling and the concomitant threat of rupture of critical components. Technological interest in this problem is matched by scientific curiosity regarding the general principles of void formation and, in particular, the intriguing observation that the voids are sometimes arranged in a macroscopic lattice. At present progress in studies of these phenomena is slow because of the long irradiation time required to make voids observable by electron microscopy. Moreover, because that technique is destructive, it has not been possible to follow the evolution of voids in a single sample.
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COTTERILL, R., MACKENZIE, I., SMEDSKJÆR, L. et al. Correlation of Void Size and Positron Annihilation Characteristics in Neutron-irradiated Molybdenum. Nature 239, 99–101 (1972). https://doi.org/10.1038/239099a0
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DOI: https://doi.org/10.1038/239099a0
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