The Negative-Ion Blemish in a Cathode-Ray Tube and Its Elimination

@article{Bowie1948TheNB,
  title={The Negative-Ion Blemish in a Cathode-Ray Tube and Its Elimination},
  author={R. M. Bowie},
  journal={Proceedings of the IRE},
  year={1948},
  volume={36},
  pages={1482-1486}
}
  • R.M. Bowie
  • Published 1948
  • Physics
  • Proceedings of the IRE
  • This paper is a critical review of the widely scattered and somewhat conflicting data regarding negative ions in cathode-ray tubes and blemish formations. The form of the ion blemish is a function of the form of focusing and scanning used, being a small central spot with electric focus and magnetic scan, and being a circle about an inch in diameter with magnetic focus and scan. The blemish is due to chemical poisoning of fluorescence by negative ions formed on or near the cathode. The paths of… CONTINUE READING
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    Sixty Years of Electronics
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