Abstract
If light charged particles (protons, α-particles, etc.) are emitted during fission, it should be possible to establish this fact by a simple coincidence experiment. Suppose two detectors are arranged so that they can both ‘see’ a thin film of uranium oxide. Let one of the detectors register the entry of fission fragments only, say at the rate of
F
(sec.
-1
). Let the other detector register not only fission fragments (unless they are excluded by an interposed absorber) but also light charged particles (protons, a-particles, etc.) with energies within certain limits. Suppose that the rate of registration in the second detector is
P
(sec.
-1
), that the mean efficiency for the detection of a light charged particle emitted from the uranium film is
e
, and that the average number of light charged particles liberated per fission is η.
Reference4 articles.
1. Broda Feather & W ilkinson 1947 Report of Cambridge Conference Ju Iy 1946. In course of publication.
2. D unw orth 1939 Nature 144 152.
3. Green & L ivesey 1947 Nature 159 332.
4. L ivesey & Green 1946 Nature 158 272.
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