Published online by Cambridge University Press: 24 October 2008
The disintegration of nitrogen by slow neutrons has been studied in photographic emulsions of different sensitivity, which enable an unambiguous distinction to be made between the emission of α-particles and protons. Evidence has been obtained that the disintegration takes place according to the reaction
with a cross-section of about 10−24 cm.2
* Chadwick, and Goldhaber, , Nature, 135 (1935), 65CrossRefGoogle Scholar; Proc. Camb. Phil. Soc. 31 (1935), 612.Google Scholar
† Bonner, and Brubaker, , Phys. Rev. 48 (1935), 469CrossRefGoogle Scholar; 49 (1936), 223.
‡ Bonner, and Brubaker, , Phys. Rev. 49 (1936), 778.CrossRefGoogle Scholar
§ Aston, , Nature, 137 (1936), 357CrossRefGoogle Scholar.
∥ Oliphant, , Nature, 137 (1936), 397.CrossRefGoogle Scholar
* Taylor, and Goldhaber, , Nature, 135 (1935), 341CrossRefGoogle Scholar; Taylor, , Proc. Phys. Soc. 47 (1935), 873CrossRefGoogle Scholar; Taylor and Dabholkar, ibid. 48 (1936), 285.
† See Photography as an Aid to Scientific Work (Messrs Ilford, Ltd.).
‡ Taylor, , Proc. Roy. Soc. 150 (1935), 382.CrossRefGoogle Scholar
* Chadwick and Goldhaber, loc. cit.
* Ilford emulsions L3339 B and C containing 0.047 and 0.094 mg. B/cm.2 respectively.
† Macmillan, , Phys. Rev. 49 (1936), 875.Google Scholar
‡ Mitchell, , Dunning, , Segré, and Pegram, , Phys. Rev. 48 (1935), 774.CrossRefGoogle Scholar