Abstract
FROM chemical evidence, Hahn and Strassmann1 conclude that radioactive barium nuclei (atomic number Z = 56) are produced when uranium (Z = 92) is bombarded by neutrons. It has been pointed out2 that this might be explained as a result of a ‘fission’ of the uranium nucleus, similar to the division of a droplet into two. The energy liberated in such processes was estimated to be about 200 Mev., both from mass defect considerations and from the repulsion of the two nuclei resulting from the ‘fission’ process.
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References
- 1.
Hahn, O., and Strassmann, F., Naturwiss., 27, 11 (1939).
- 2.
Meitner, L., and Frisch, O. R., NATURE [143, 239 (1939).
- 3.
See Meitner, L., Strassmann, F., and Hahn, O., Z. Phys., 109, 538 (1938).
Author information
Affiliations
Institute of Theoretical Physics, University, Copenhagen. Jan. 16.
- O. R. FRISCH
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Further reading
-
1.
Resonance (2016)
-
2.
Some aspects of fission and quasifission processes
Pramana (2015)
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3.
Physics in Perspective (2012)
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4.
The history of the discovery of nuclear fission
Foundations of Chemistry (2011)
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5.
Lise Meitner, Otto Hahn und die Kernspaltung: eine Legende aus unseren Tagen
NTM International Journal of History and Ethics of Natural Sciences, Technology and Medicine (2000)
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