Artificial Production of Uranium Y from Thorium (original) (raw)

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• Published: 01 November 1938

Nature volume 142, page 874 (1938)Cite this article

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Abstract

ARTIFICIAL radioactivity induced in thorium by neutron bombardment has been studied by various authors1. Meitner, Strassmann and Hahn2 especially have recently published the results of their detailed investigations, according to which they ascertained the production of a thorium isotope 233Th (26 min.) and three isomers of a radium isotope 229Ra (1 min., 15 min. and about 4 hours).

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References

1. Fermi, E., Amaldi, E., D'Agostino, O., Rasetti, F., Segré, E., Proc. Roy. Soc., A, 146, 483 (1934); Hahn, O., and Meitner, L., Naturwiss., 23, 320 (1935); Amaldi, E., D'Agostino, O., Fermi, E., Pontecorvo, B., Rasetti, F., Segré, E., Proc. Roy. Soc., A, 149, 522 (1935); Curie, I., v. Halban, H., and Preiswerk, P., C.R., 200 1841, 2079 (1935); J. Phys. et Rad., 7, 361 (1935); Rona, E., and Neuninger, E., Naturwiss., 24, 491 (1936); Mitteil. Inst. Radiumforschung, No. 384, 479 (1936).
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2. Meitner, L., Strassmann, F., and Hahn, O., Z. Phys., 109, 538 (1938).
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3. Erchova, J. Phys., 8, 501 (1937).
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Authors and Affiliations

1. Nuclear Research Laboratory, Institute of Physical and Chemical Research, Tokyo
   Y. NISHINA & T. YASAKI
2. Chemical Institute, Faculty of Science, Imperial University of Tokyo,
   K. KIMURA & M. IKAWA

Authors

1. Y. NISHINA
2. T. YASAKI
3. K. KIMURA
4. M. IKAWA

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NISHINA, Y., YASAKI, T., KIMURA, K. et al. Artificial Production of Uranium Y from Thorium.Nature 142, 874 (1938). https://doi.org/10.1038/142874c0

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• Published: 01 November 1938
• Issue date: 12 November 1938
• DOI: https://doi.org/10.1038/142874c0

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