Observations with Electron-Sensitive Plates Exposed to Cosmic Radiation

  title={Observations with Electron-Sensitive Plates Exposed to Cosmic Radiation},
  author={R. Brown and Ugo Camerini and Peter Howard Fowler and Hilary Muirhead and Cecil Frank Powell and David M. Ritson},
WE have recently made observations with the new Kodak nuclearresearch emulsions, described by Dr. R. W. Berriman1, which record the tracks of particles of charge e, even at minimum ionization. The new plate represent a technical advance of great importance ; they allow us to obtain a much deeper insight into nuclear processes than was possible withytfhe older emulsions, and they greatly extend the field of application of the photographic method to physical and biological problems. 

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