Abstract
The study of nuclear fission induced by high-energy protons
Highlights
CHEMICAL TREATMENT AND OBSERVATION OFMICA SANDWICHES. - After exposure to high-energy protons, sandwiches were placed in hydrochloric or nitric acid to dissolve the aluminium foils together with the target layers
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With glass used this paper has been undertaken with the aim to measure as a detector of heavy fragments [4] the registration cross-sections for nuclear fission of heavy nuclei efhciency is only about 40 % ; it is not induced by high-energy protons
Summary
MICA SANDWICHES. - After exposure to high-energy protons, sandwiches were placed in hydrochloric or nitric acid to dissolve the aluminium foils together with the target layers. 2. - Microphotographs of correlated pairs of fission fragment tracks registered in mica sandwiches exposed to highenergy protons. Both the inner surfaces of the two mica sheets are in focus at the same time. G. in Fig. 2) due to fission fragments incident on the mica surface at very small angles (less than about 60) Apart fronï these events, there are single, uncorrelated tracks and « dots ». The quoted statistical errors include uncertainties in the determination of target thicknesses and in total number of protons, as well as those resulting from the number of binary events observed and correction factors. Brandt et al [7], [34]
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