Emission of Photo Radiations by the Impact of Positive Ions of Helium on Nickel

@article{Chaudhri1956EmissionOP,
  title={Emission of Photo Radiations by the Impact of Positive Ions of Helium on Nickel},
  author={Rafi Mohammed Chaudhri and Mustafa Yar Khan and Abdul Latif Taseer},
  journal={Nature},
  year={1956},
  volume={177},
  pages={1226-1227}
}
THE emission of secondary electrons from metals by positive ions has been studied by a number of workers1, and it has been established that the efficiency of this process depends upon the work function of the metal, the ionization potential of the ion and their kinetic energy. It is believed that a positive ion becomes neutralized before it actually comes into contact with the metal by extracting an electron from it and is in the excited state when it enters its surface. The energy of… CONTINUE READING

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