Abstract
RECENT advancesxin the manufacture and processing of nuclear research emulsions have made it possible to examine in more detail the -nuclear processes induced by cosmic rays. The Bristol group1 has shown that it is possible, in the new highly sensifewe emulsions2, to detect the bete-decay of the µmeson and otner processes in which relativistic particles are involved. The possibility of processing plates of great thickness (up to 600 microns) afforded by temperature development3 has brought into use plates in which it is possible to follow to the end even highly scattered particles with a range of several hundred microns in the emulsion.
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References
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COSYNS, M., DILWORTH, C., OCCHIALINI, G. et al. Double Stars with Relativistic Particles from Cosmic Rays. Nature 164, 129–131 (1949). https://doi.org/10.1038/164129a0
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DOI: https://doi.org/10.1038/164129a0
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