Abstract
WE have investigated the influence of temperature on the activation of silver by slow neutrons, separating the effects due to the groups A, B and C as defined by Amaldi and Fermi1. The arrangement used is shown in plan in Fig. 1. Absorbers of cadmium (0.258 gm./cm.2) and silver (0.077 gm./cm.2) were employed to separate the groups, and the use of a thicker absorber of silver (1.023 gm./cm.2) enabled changes in the absorption coefficients of groups B and C in silver to be measured. For the low temperatures the paraffin wax was cooled with liquid nitrogen or hydrogen. The results obtained were as follows:
Similar content being viewed by others
Article PDF
References
Ric. Scient., (ii), 6, 344 and 443 (1935); (i), 7, 454 (1936).
Amaldi and Fermi, loc. cit.; Frisch and Placzek, NATURE, 137, 357 (1936); Weeks, Livingstone and Bethe, Phys. Rev., 49, 471 (1936).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
ARSENJEWA-HEIL, A., HEIL, O. & WESTCOTT, C. Influence of Temperature on the Groups of Slow Neutrons. Nature 138, 462 (1936). https://doi.org/10.1038/138462a0
Issue Date:
DOI: https://doi.org/10.1038/138462a0
Comments
By submitting a comment you agree to abide by our Terms and Community Guidelines. If you find something abusive or that does not comply with our terms or guidelines please flag it as inappropriate.