Abstract
WE have recently exposed photographic plates, coated with the IIford 'Nuclear Research' emulsions, to the 9 MeV. deuteron beam delivered by the Liverpool cyclotron. The deuterons were allowed to pass into the surface of the emulsion at a small angle of glancing incidence, and an exposure of less than 0.01 sec. was found to be sufficient to give a convenient number of tracks per unit area of the emulsion. In making measurements of the lengths of the tracks of the deuterons, we found, in addition to numerous forked tracks due to collision of deuterons with protons, examples of disintegrations produced by the entry of primary particles into nuclei of light elements, such as carbon, oxygen and nitrogen, present in the emulsion.
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References
Cockcroft, J. D., and Lewis, W. B., Proc. Roy. Soc. A, 154, 261 (1936).
Lattes, Fowler and Cuer, Proc. Phys. Soc., in the press.
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FOWLER, P., BURROWS, H. & CURRY, W. Disintegration of Nitrogen into Four α-Particles by Collision with Deuterons. Nature 159, 569–570 (1947). https://doi.org/10.1038/159569b0
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DOI: https://doi.org/10.1038/159569b0
