Abstract
SINCE March 1938, we have been engaged in the study of artificial radioactivity induced in thorium by fast neutrons. We have already reported1 the production of uranium Y, which was obtained in the course of this investigation.
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References
Nishina, Y., Yasaki, T., Kiniura, K., and Ikawa, M., NATURE, 142, 874 (1933).
Meitner, L., Strassmann, F., and Hahn, O., Z. Phys., 109, 538 (1938).
Hahn, O., and Strassmann, F., Naturwiss., 26, 756 (1938);. 27, 11 (1939); 27, 89 (1939).
Bretscher, E., and Cook, L. G., NATURE, 143, 559 (1939).
Meitner, L., NATURE, 143, 637 (1939).
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NISHINA, Y., YASAKI, T., EZOE, H. et al. Fission of Thorium by Neutrons. Nature 144, 547–548 (1939). https://doi.org/10.1038/144547c0
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DOI: https://doi.org/10.1038/144547c0
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