Tracks in Mica caused by Electron Showers


MUONS may leave detectable tracks in muscovite mica under suitable conditions such as those found deep underground after the formation of the mica crystals in pegmatites1. The momentum spectrum of the muons, as determined by scattering measurements, indicates the presence of muons of high momentum (> 10 GeV/c). It is therefore natural to try to find the products of electromagnetic interactions of the muons, in particular the occurrence of electron showers.

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  1. 1

    Russell, F. M., Phys. Letts., 25B, 4, 298 (1967).

    Google Scholar 

  2. 2

    Fowler, P. H., and Perkins, D. H., Phil. Mag., 46, 587 (1955).

    CAS  Article  Google Scholar 

  3. 3

    Pinkau, K., Phil. Mag., 2, 1389 (1957).

    ADS  CAS  Article  Google Scholar 

  4. 4

    Creed, D. R., et al., Proc. Intern. Conf. on Cosmic Rays, London, 980 (1965).

    Google Scholar 

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RUSSELL, F. Tracks in Mica caused by Electron Showers. Nature 216, 907–909 (1967).

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