Abstract
TSIEN et al. 1 pointed out for the first time in 1946 the possibility that uranium-235, when bombarded with thermal neutrons, may sometimes divide into three fragments, two heavy and the other one with a mass of around 32. The same kind of event has also been seen by others2 but in other cases it was not observed3.
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References
Tsien San Tsiang, Ho Zah-Wei, Chastel, R., and Vigneron, L., C.R. Acad. Sci. (Paris), 223, 1119 (1946); J. Phys. Radium, 8, 165 and 200 (1947).
Perfilov, N. A., “Physics of Nuclear Fission”, 86 edit. E. Bretscher and D. J. Hughes (Pergamon Press, 1958). Dutta, S. P., Ind. J. Phys., 27, 547 (1953).
Green, L. L., and Livesey, D. L., Nature, 159, 332 (1947). Demers, P., Phys. Rev., 70, 974 (1946); Canad. J. Phys., 31, 78 (1953). Rosen, L., and Hudson, A. M., Phys. Rev., 78, 533 (1950).
Catalá, J., Domingo, V., Casanova, J., Senent, F., and Lleo, A., An. Real Soc. Esp. Fis. Quim. (in the press). H. G. Carvalho, of the Centro Brasileiro de Pesquisas Fisicas (private communication).
Demers, P., “Ionographie”, 252 (Les Presses Universitaires de Montréal, 1958).
Wollan, E. O., Moak, C. D., and Sawyer, R. B., Phys. Rev., 72, 447 (1947).
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CATALA, J., CASANOVA, J. & DOMINGO, V. Two Cases of Triple Fission of Uranium-235. Nature 184, 1057–1058 (1959). https://doi.org/10.1038/1841057a0
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DOI: https://doi.org/10.1038/1841057a0
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